# Publications

### Thesis

A. Keren, Antiferromagnetism in the super-degenerate kagomé lattice and cuprates. Supervisor:Y.J. Uemura, Columbia University USA, (1994)

### Journal Publications

#### Published

- Silvia Müllner, Wayne Crump, Dirk Wulferding, Benjamin P. P. Mallett, Peter Lemmens, Amit Keren, and Jeffery L. Tallon, Systematic Raman study of optical phonons in RBa2Cu3O6+δ (R = Y, Dy, Gd, Sm, Nd): Antiferromagnetic coupling strength versus lattice parameters, Phys. Rev. B 99, 094525 (2019).
- O. Negri, M. Zaberchik, G. Drachuck, A. Keren, and M. Reznikov, Zero energy states at a normal-metal/cuprate-superconductor interface probed by shot noise, Phys. Rev. B 97, 214504 (2018).
- L. Chaix, E. W. Huang, S. Gerber, X. Lu, C. Jia, Y. Huang, D. E. McNally, Y. Wang, F. H. Vernay, A. Keren, M. Shi, B. Moritz, Z.-X. Shen, T. Schmitt, T. P. Devereaux, and W.-S. Lee, Resonant inelastic x-ray scattering studies of magnons and bimagnons in the lightly doped cuprate La
_{2-x}Sr_{x}CuO_{4}, Phys. Rev. B 97, 155144 (2018). - M. Yaari and A. Keren, Temperature changes of the Fe8 molecular magnet during its spin reversal process, Phys. Rev. B 95, 174435 (2017).
- I. Kapon, D. S. Ellis, G. Drachuck, G. Bazalitski, E. Weschke, E. Schierle, J. Strempfer, C. Niedermayer, and A. Keren, Opening a nodal gap by fluctuating spin-density wave in lightly doped La
_{2-x}Sr_{x}CuO_{4}, Phys. Rev. B 95, 104512 (2017). - D. S. Ellis, Y. Huang, P. Olalde-Velasco, M. Dantz, J. Pelliciari, G. Drachuck, R. Ofer, G. Bazalitsky, J. Berger, T. Schmitt, and A. Keren, Correlation of the superconducting critical temperature with spin and orbital excitations in (Ca
_{x}La_{1−x})(Ba_{1.75−x}La_{0.25+x})Cu_{3}O_{y}as measured by resonant inelastic x-ray scattering, Phys. Rev. B 92, 104507 (2015). - D. Wulferding, Meni Shay G. Drachuck, R. Ofer, G. Bazalitsky, Z. Salman, P. Lemmens, and A. Keren, Relation between cuprate superconductivity and magnetism: A Raman study of (CaLa)
_{1}(BaLa)_{2}Cu_{3}O_{y}, Phys. Rev. B 90, 104511 (2014). - T. Leviant, A. Keren, E. Zeldov, and Y. Myasoedov, Quantum ignition of deflagration in the Fe8 molecular magnet, Phys. Rev. B 90, 134405 (2014).
- T. Leviant, S. Hanany, Y. Myasoedov, and A. Keren, Testing the radiation emanating from the molecular nanomagnet Fe8 during magnetization reversals, Phys. Rev. B 90, 054420 (2014).
- T. Cvitanić, D. Pelc, M. Požek, E. Amit, and A. Keren, 17O-NMR Knight shift study of the interplay between superconductivity and pseudogap in (Ca
_{x}La_{1−x})(Ba_{1.75−x}La_{0.25+x})Cu_{3}O_{y}, Phys. Rev. B 90, 054508 (2014). - A. H. Devir-Wolfman, B. Khachatryan, B. R. Gautam, L. Tzabary, A. Keren, N. Tessler, Z. V. Vardeny, and E. Ehrenfreund, Short-lived charge-transfer excitons in organic photovoltaic cells studied by high-field magneto-photocurrent, Nature Communications 5, Article number: 4529, July (2014).
- O. Ofer, L. Marcipar, V. R. Chandra, S. Gazit, D. Podolsky, D. P. Arovas, and A. Keren, Dynamic spin ﬂuctuations at T → 0 in a spin-1/2 ferromagnetic kagome lattice, Phys. Rev. B 89, 205116 (2014).
- G. Drachuck, E. Razzoli, R. Ofer, G. Bazalitsky, R. S. Dhaka, A. Kanigel, M. Shi, and A. Keren, Linking dynamic and thermodynamic properties of cuprates: An angle-resolved photoemission study of (Ca
_{x}La_{1−x})(Ba_{1.75−x}La_{0.25+x})Cu_{3}O_{y}(x = 0.1 and 0.4), Phys. Rev. B 89, 121119(R) (2014). - G. Drachuck, E. Razzoli, G. Bazalitski, A. Kanigel, C. Niedermayer, M. Shi, A. Keren, Comprehensive study of the spin-charge interplay in antiferromagnetic La
_{2-x}Sr_{x}CuO_{4}, Nature Communications 5, Article number: 3390, February (2014). - S. Asban, M. Shay, M. Naamneh, T. Kirzhner, and A. Keren, Strong- versus weak-coupling paradigms for cuprate superconductivity, Phys. Rev. B 88, 060502(R) (2013).
- E. Razzoli, G. Drachuck, A. Keren, M. Radovic, N. C. Plumb, J. Chang, J. Mesot, M. Shi, Evolution from a nodeless gap to d
_{(x2-y2)}form in underdoped La_{(2-x)}Sr_{x}CuO_{4}, Phys. Rev. Lett. 110, 047004 (2013). - I. Felner, M. I. Tsindlekht, G. Drachuck and A. Keren, Anisotropy of the upper critical fields and the paramagnetic Meissner effect in La
_{1:85}Sr_{0:15}CuO_{4}single crystals, J. Phys. Condens. Matter 25, 065702 (2013). - G. Drachuck, M. Shay, G. Bazalitsky, Z. Salman, A. Amato, C. Niedermayer, D. Wulferding, P. Lemmens, and Amit Keren, New Perspectives for Cuprate Research: A CLBLCO Single Crystal, J. Supercond. Nov. Magn., June (2012).
- G. Drachuck, M. Shay, G. Bazalitsky, J. Berger, and A. Keren, Parallel and perpendicular susceptibility above Tc in La
_{2-x}Sr_{x}CuO_{4}single crystals, Phys. Rev. B 85, 184518 (2012). - E. Amit, A. Keren, J. S. Lord, and P. King, A Precise Measurement of the Oxygen Isotope Effect on the Neel Temperature in Cuprates, Advances in Cond Matter Phys, 178190 (2011).
- O. Ofer, A. Keren, J.H. Brewer, T.H. Han and Y.S. Lee, The Herbertsmithite Hamiltonian: mSR measurements on single crystals, J. Phys.: Condens. Matter 23, 164207 (2011).
- E. Razzoli1, Y Sassa, G Drachuck, M Mansson, A Keren, M Shay, M H Berntsen, O Tjernberg, M Radovic, J Chang, S Pailhes, N Momono, M Oda, M Ido, O J Lipscombe, S M Hayden, L Patthey, J Mesot and M Shi, The Fermi surface and band folding in La
_{2-x}Sr_{x}CuO_{4}, probed by angle-resolved photoemission, New J. Phys.12, 125003 (2010). - E. Amit and A. Keren, Critical-doping universality for cuprate superconductors: Oxygen nuclear-magnetic-resonance investigation of (Ca
_{x}La_{1-x})(Ba_{1.75-x}La_{0.25-x})Cu_{3}O_{y}, Phys. Rev. B 82, 172509 (2010). - O. Ofer, A. Keren, J. S. Gardner, Y. Ren, and W. A. MacFarlane, Origin of magnetic freezing in pyrochlore Y
_{2}Mo_{2}O_{7}, Phys. Rev. B 82, 092403 (2010). - D. Di Castro, A. Kanigel, A. Maisuradze, A. Keren, P. Postorino, D. Rosenmann, U. Welp, G. Karapetrov, H. Claus, D. G. Hinks, A. Amato, and J. C. Campuzano, Muon spin rotation study of the magnetic penetration depth in the intercalated graphite superconductor CaC
_{6}, Phys. Rev. B 82, 014530 (2010). - O. Shafir, A. Keren, S. Maegawa, M. Ueda, and E. Shimshoni, Magnetic quantum tunneling in Fe
_{8}with excited nuclei, Phys. Rev. B 82, 014419 (2010). - A. Keren, Evidence of magnetic mechanism for cuprate superconductivity, New Journal of Physics
**11**, 065006 (2009). - R. Ofer and A. Keren, Nutation versus angular-dependent NQR spectroscopy and impact of underdoping on charge inhomogeneities in YBa
_{2}Cu_{3}O_{y}, Phys. Rev. B 80, 224521 (2009). - L. Marcipar, O. Ofer, A. Keren, E. A. Nytko, D. G. Nocera, Y. S. Lee, and J. S. Helton, and Ch. Bains, Muon-spin spectroscopy of the organometallic spin-1/2 kagome-lattice compound Cu(1,3-benzenedicarboxylate), Phys. Rev. B 80, 132402 (2009).
- M. Shai, A. Keren, G. Koren, A. Kanigel, O. Shafir, L. Marcipar, G. Nieuwenhuys, E. Morenzoni, A. Suter, and Th. Prokscha, M. Dubman, and D. Podolsky, Interaction between the magnetic and superconducting order parameters in a La
_{1.94}Sr_{0.06}CuO_{4}wire studied via muon spin rotation, Phys. Rev. B 80, 144511 (2009). - O. Shafir and A. Keren, Electromagnetic radiation emanating from the molecular nanomagnet Fe
_{8}, Phys. Rev. B 79, 180404(R) (2009). - O. Ofer and A. Keren, The symmetry of the spin Hamiltonian in herbertsmithite, a spin-1/2 kagome lattice, Phys. Rev. B 79, 134424 (2009).
- R. Ofer, A. Keren, O. Chmaissem and A. Amato, Universal doping dependence of the ground-state staggered magnetization of cuprate superconductors, Phys. Rev. B 78, 140508(R) (2008).
- Y. Lubashevsky and A. Keren, Experimental investigation of the origin of the crossover temperature in cuprate superconductors via dc magnetic susceptibility, Phys. Rev. B 78, 020505(R) (2008).
- O. Ofer, A Keren and Ch. Baines, Lack of static lattice distortion in Tb
_{2}Ti_{2}O_{7}, J. Phys.: Condens. Matter. 19, 145270 (2007). - A. Keren, O. Shafir, E. Shimshoni, V. Marvaud, A. Bachschmidt and J. Long, Experimental Estimates of Dephasing Time in Molecular Magnets, Phys. Rev. Lett. 98, 257204 (2007).
- R. Ofer, G. Bazalitsky, A. Kanigel, A. Keren, J. S. Lord, and A. Amato, A magnetic analog of the isotope effect in cuprates, Phys. Rev. B 74, 220508(R) (2006).
- A. Keren, A. Kanigel, and G. Bazalitsky, Evidence for two fluids in cuprate superconductors from a nuclear resonance study of (Ca
_{x}L_{a1-x})(Ba_{1.75-x}La_{0.25+x})Cu_{3}O_{y}, Phys. Rev. B 74, 172506 (2006). - A. Kanigel, A. Keren, In-plane hole density of cuprates; nuclear resonance study over the full doping range, Phys. Rev. B 74, 012505 (2006).
- R. Ofer, S. Levy, A. Kanigel, and A. Keren, Charge-Inhomogeneity doping relations in YBa
_{2}Cu_{3}O_{y}Detected by Angle Dependent Nuclear Quadrupole Resonance, Phys. Rev. B 73, 012503 (2006). - O. Shafir, A. Keren, S. Megawa, M. Ueda, A. Amato, C. Bains, Demonstrating multibit magnetic memory in the Fe8 high-spin molecule by muon spin rotation, Phys. Rev. B 72, 092410 (2005).
- A. Kanigel, A. Keren, A. Knizhnik, O. Shafir, Universal linear relations between susceptibility and T
_{c}in cuprates, Phys. Rev. B 71, 224511 (2005). - E. Sagi, O. Ofer, A. Keren, J. S. Gardner, Quest for Frustration Driven Distortion in Y
_{2}Mo_{2}O_{7}, Phys. Rev. Lett.94, 237202 (2005). - P. Carretta, A. Keren, J.S. Lord, I. Zucca, S.M.Kazakov and J. Karpinski, Anomaly in YBa
_{2}Cu_{4}O_{8}charge distribution below T_{c}: a zero-field μSR study, Phys. Rev. B 71, 052507 (2005). - A. Zakrassov, V. Shteiman, Y. Sheynin, B. Tumanskii, M. Botoshansky, M Kapon, A. Keren, M. Kaftory, T. E.Vos and J. S.Miller, Synthesis, structural,and magnetic characterization of substituted benzoimidazole-l-yl N,N’-dioxides, J .Mater.Chem. 14, 1827 (2004).
- A. Keren, Muons as probes of dynamical spin fluctuations: some new aspects , J. Phys.: Condens. Matter 16 ,S4603–S4618 (2004).
- Kanigel, A. Keren, L. Patlagan, K. B. Chashka, B. Fisher, P. King, A. Amato, Muon Spin Relaxation Measurements in Na
_{x}CoO_{2}yH_{2}O, Phys. Rev. Lett 92, 257007 (2004). - S. Levy and A. Keren, Pure nuclear quadrupole resonance determination of the electric field gradient asymmetry for broad lines, JMR 167, 317 –321 (2004).
- A. Keren, J. Gardner, G. Ehlers, A. Fukaya, E. Sagi and Y. J. Uemura, Dynamic properties of a diluted pyrochlore cooperative paramagnet (Tb
_{p}Y_{1-p})_{2}Ti_{2}O_{7}, Phys. Rev. Lett. 92, 107204 (2004). - J. S. Gardner, A. Keren, G. Ehlers, C. Stock, Eva Segal, J. M. Roper, B. Fak, M. B. Stone, P. R. Hammar, D. H. Reich, and B. D. Gaulin, Dynamic frustrated magnetism in Tb
_{2}Ti_{2}O_{7}at 50 mK, Phys. Rev. B 68, 180401(R) (2003). - A. Fukaya,Y. Fudamoto, I.M. Gat, T. Ito, M. I. Larkin, A.T. Savici,Y. J. Uemura, P. P. Kyriakou, G. M. Luke, M. T. Rovers, K.M. Kojima, A. Keren, M. Hanawa, and Z. Hiroi, Muon Spin Relaxation and Susceptibility Studies of the Pure and Diluted Spin 12 Kagome´-Like Lattice System (Cu
_{x}Zn_{1-x})_{3}V_{2}O_{7}(OH_{2})H_{2}O, Phys. Rev. Lett. 91, 207603 (2003). - J. A. Chakhalian, R. F. Kiefl, R. Miller, J. Brewer S. R. Dunsiger G. Morris W. A. MacFarlane J. E. Sonier S. Eggert I. Affleck A. Keren Local Magnetic Susceptibility of the Positive Muon in the Quasi-One-Dimensional S = 1/2 Antiferromagnet Dichlorobis (Pyridine) Copper (II), Phys. Rev. Lett. 91, 027202 (2003).
- A. Keren and A. Kanigel, Common energy scale for magnetism and superconductivity in cuprates, Phys. Rev. B 68, 012507 (2003).
- A. Keren, A. Kanigel, J. S. Lord, and A. Amato, Universal superconducting and magnetic properties of the (Ca
_{x}La_{1-x})(Ba_{1.75-x}La_{0.25+x})Cu_{3}O_{y}system: a mSR investigation, Solid State Commun. 123, 39 (2003). - A. Keren, F. Gulener, I. Campbell, G. Bazalitsky, and A. Amato, Dynamical crossover in an Ising spin glass above T
_{g}; a mSR investigation of Fe_{0.05}TiS_{2}, Phys. Rev. Lett. 89, 107201 (2002). - A. Kanigel, A. Keren, Y. Eckstein, A. Knizhnik, J. Lord, and A. Amato, Common energy scale for magnetism and superconductivity in underdoped cuprates: a mSR investigation of (Ca
_{x}La_{1-x})(Ba_{1.75-x}La_{0.25+x})Cu_{3}O_{y}, Phys. Rev. Lett. 88, 137003 (2002). - Z. Salman A. Keren, P. Mendels, A. Scuiller, M. Verdaguer, J. Loard C. Baines, Dynamics at T-> 0 in half-integer isotropic high spin molecules, Phys. Rev. B 65, 132403 (2002).
- K. B. Chashka, B. Fisher, J. Genossar, A. Keren, L. Patlagan, and G. M. Reisner, E. Shimshoni and J. F. Mitchell, Linear and nonlinear electronic transport in weakly insulating double layered manganites, Phys. Rev. B 65, 134441 (2002).
- A. Keren and J. S. Gardner , Frustration driven lattice distortion; an NMR investigation of Y
_{2}Mo_{2}O_{7}, Phys. Rev. Lett. 87, 177201 (2001). - A. Keren, G. Bazalitsky, I. Campbell and J. Lord, Probing exotic spin correlations by muon spin depolarization measurements with application to spin glass dynamics, Phys. Rev. B 64, 54403 (2001).
- P. Mendels, A. Keren, L. Limot, M. Mekata, G. Collin, M. Horvatic, Ga NMR Study of the Local Susceptibility in Kagomé-Based SrCr
_{9p}Ga_{12-9p}O_{19}: Pseudogap and Paramagnetic Defects, Phys. Rev. Lett. 85, 3496 (2000). - A. Keren, Y. J. Uemura, G. Luke, P. Mendels, M. Mekata and T. Asano, Magnetic dilution in the geometrically frustrated SrCr
_{9p}Ga_{12-9p}O_{19}, and the role of local dynamics: a mSR study, Phys. Rev. Lett. 84, 3450 (2000). - M. Mekata, T. Asano, H. Nakamura, M. Shiga, K. M. Kojima, G. M. Luke, A. Keren, W. D. Wu, M. Larkin, Y. J. Uemura, S. Dunsiger, and M. Gingras, Ground state of the geometrically frustrated system Y(Sc)Mn
_{2}studid by muon spin relaxation, Phys. Rev. B 61, 4088 (2000). - A. Keren and Ophir M. Auslaender, Spin Echo Decay in a Stochastic Field Environment, Phys. Rev. B 60, 9279 (1999).
- A. Keren, P. Mendels, M. Horvatic, F. Ferrer, Y. J. Uemura, M. Mekata and T. Asano,
^{69,71}Ga NMR in the kagomé lattice compound SrCr_{8}Ga_{4}O_{19}, Phys. Rev. B 57, 10745 (1998). - A. Keren, H. Alloul, P. Mendels, Y. Yoshinari, NMR study of
^{17}O transverse relaxation in YBa_{2}Cu_{3}(^{16}O_{1-c}^{17}O_{c})_{7}, Phys. Rev. Lett. 78, 3547 (1997). - J. Bobroff, H. Alloul, Y. Yoshinari, A. Keren, P. Mendels, N. Blanchard, G. Collin, and J.-F. Maroucco, Using Ni Substitution and
^{17}O NMR to Probe the Susceptibility c(q) in Cuprates, Phys. Rev. Lett. 79, 2117 (1997). - A. Keren, P. Mendels, I. A. Campbell, and J. Lord Probing the spin-spin dynamical autocorrelation function in spin glass AgMn above Tg using mSR, Phys. Rev. Lett. 77, 1386 (1996).
- S. R. Dunsiger, R. F. Kiefl, K. H. Chow, B. D. Gaulin, M. J. Gingras, J. E. Greedan, A. Keren, K. Kojima, G. M. Luke, W. A. MacFarlane, N. P. Raju, J. E. Sonier, Y. J. Uemura, and W. D. Wu, Muon spin relaxation investigation of the spin dynamics of geometrically frustrated antiferromagnets Y
_{2}Mo_{2}O_{7}and Tb_{2}Mo_{2}O_{7}, Phys. Rev. B 54, 9019 (1996). - B. Nachumi, A Keren, K. Kojima, M. Larkin, G. M. Luke, J. Merrin, O. Tchernyshev, Y. J. Uemura, N. Ichikawa, M. Goto, and S. Uchida, Muon Spin Relaxation Stadies of Zn-Substitution Effects in High-T Cuprate Superconductors, Phys. Rev. Lett. 77, 5421 (1996).
- A. Keren, K. Kojima, L. P. Le, G. L. Luke, W. D. Wu, Y. J. Uemura, M. Takano, H. Dabkowska, and M.J. P. Gingras, mSR Measurements in the Kagomé Lattice Systems: Cr-Jarosite and Fe-Jatosite, Phys. Rev. B 53, 6451 (1996).
- G. L. Luke, A. Keren, K. Kojima, L. P. Le, W. D. Wu, Y. J. Uemura, G. M. Kalvius, A. Kratzer, G. Nakamoto, T. Takabatake and M. Ishikawa, mSR Measurements of Spin Fluctuations in CePt
_{2}Sn_{2}, Physica B 206&207, 222 (1995). - 72. K. Kojima, A. Keren, G. M. Luke, B. Nachumi, W. D. Wu, Y. J. Uemura, M. Azuma and M.Takano, Magnetic behavior of the 2-leg and 3-leg spin ladder cuprates Sr
_{n-1}Cu_{n+1}O_{2n}, Phys. Rev. Lett. 74, 2812 (1995). - K. Kojima, A. Keren, L. P. Le, G. M. Luke, B. Nachumi, W. D. Wu, Y. J. Uemura, K. Kiyono, S. Miyasaka, H. Takagi, and S. Uchida, mSR and Magnetic Susceptibility Measurements in Haldane System (Y
_{2-x}Ca_{x})Ba(Ni_{1-y}Mg_{y})O_{5}, Phys. Rev. Lett. 74, 3471 (1995). - Y. J. Uemura, A. Keren, K. Kojima, L. P. Le, G. L. Luke, W. D. Wu, Y. Ajiro, T. Asano, Y. Kuriyama, M. Mekata, H. Kikuchi, and K. Kakurai, Spin Fluctuations in Frustrated Kagomé Lattice System SrCr
_{8}Ga_{4}O_{19}Studied by Muon Spin Relaxation, Phys. Rev. Lett. 73, 3306 (1994). - G. L. Luke, A. Keren, K. Kojima, L. P. Le, B. J. Sternlieb, W. D. Wu, Y. J. Uemura, Y. Onuki, and T.Komatsubara, Competition Between Magnetic Order and Superconductivity in CeCu
_{2.2}Si_{2}, Phys. Rev. Lett. 73, 1853 (1994). - W. D. Wu, A. Keren, L. P. Le, G. L. Luke, Y. J. Uemura, Y.Dalichaouch, and M.B.Maple, mSR Studies of Magnetic Order in Y
_{1-x}U_{x}Pd_{3}and UPd_{4}, Phys. Rev. Lett. 72, 3722 (1994). - A. Keren, Generalization of the Abragam Relaxation Function to a Longitudinal Field, Phys. Rev. B 50, 10039 (1994).
- A. Keren, Dynamical Simulation of Spins on Kagomé and Square Lattices, Phys. Rev. Lett. 72, 3254 (1994).
- L. P. Le, A. Keren, G. L. Luke, W. D. Wu, Y. J. Uemura, M. Tamura, M. Ishikawa, and M. Kinoshita, Searching for Spontaneous Magnetic Order in an Organic Ferromagnet mSR Studies of b-phase p-NPNN, Chemical Physics Letters 206, 405 (1993).
- A. Keren, L. P. Le, G. L. Luke, B. J. Sternlieb, W. D. Wu, Y. J. Uemura, S. Tajima, and S. Uchida, Muon Spin Rotation Measurements in Infinite Layer and Infinite Chain Cuprate Antiferromagnets: Ca
_{0.86}Sr_{0.14}CuO_{2}and Sr_{2}CuO_{3}, Phys. Rev. B 48, 12926 (1993). - L. P. Le, A. Keren, G. L. Luke, B. J. Sternlieb, W. D. Wu, Y. J. Uemura, J. H. Brewer, T. M. Riseman, R. V. Upasani, L. Y. Chiang, W. Kang, P. M. Chaikin, T. Csiba and G. Gruner, Muon Spin Rotation and Relaxation Studies in (TMTSF)
_{2}-X Compounds, Phys. Rev. B 48, 7284 (1993). - W. D. Wu, A. Keren, L. P. Le, B. J. Sternlieb, G. L. Luke, Y. J. Uemura, P. Dosanjh, T. M. Riseman, Muon-Spin-Relaxation Studies of Flux Pinning in Bi
_{2}Sr_{2}CaCu_{2}O_{8}and Pb_{0.7}Bi_{1.3}Sr_{2}CaCu_{2}O_{8}, Phys. Rev. B 47, 8172 (1993). - Y. J. Uemura, A. Keren, L. P. Le, G. L. Luke, W. D. Wu, Y. Kubo, T. Manako, Y. Shimakawa, M. Subramanian, J. T. Markert, Magnetic-field Penetration Depth in Tl
_{2}Ba_{2}CuO_{6+d}in the Overdoped Regime, Nature 364, 6438, 605 (1993). - G. L. Luke, A. Keren, L. P. Le, W. D. Wu, Y. J. Uemura, D. A. Bonn, L. Taillefer and J. D. Garrett, Muon Spin Relaxation in UPt
_{3}, Phys. Rev. Lett. 71, 1466 (1993). - W. D. Wu, A. Keren, L. P. Le, G. L. Luke, Y. J. Uemura, C. L. Seaman, Y. Dalichaouch, and M. B. Maple, mSR Study of Spin-Glass Freezing in Y
_{1-x}U_{x}Pd_{3}and UPd_{4}: Disappearance of the ordered moment in the ‘Kondo regime’, Physica B 186-188, 344 (1993). - G. L. Luke, A. Keren, L. P. Le, W. D. Wu, Y. J. Uemura, D. A. Bonn, L. Taillefer, and J. D. Garrett, Muon Spin Relaxation in the Heavy Fermion System UPt
_{3}, Physica B 186-188, 264 (1993). - Y. J. Uemura, A. Keren, L. P. Le, G. L. Luke, B. J. Sternlieb, W. D. Wu, J. H. Brewer, R. L .Whetten, S. M. Huang, S. Lin, R. B. Kaner, F. Diederich, S. Donovan, G. Gruner and K. Holczer, Magnetic-Field Penetration Depth in K
_{3}C_{60}Measured by Muon Spin Relaxation, Nature 352, 605 (1991).

#### Invited Papers

- A. Keren, Evidence of magnetic mechanism for cuprate superconductivity, New J. Phys. 11, 065006 (2009).
- P. Carretta and A. Keren, NMR and mSR in highly frustrated magnets, in C. Lacroix, P. Mendels, F. Mila (Eds.) Introduction to frustrated magnetism,2011. arXiv:0905.4414.
- A. Keren, Stochastic Landau-Zener model, and experimental estimates of dephasing time in molecular magnets, Springer-Verlag, Milano, Italia.
- A. Keren, Muons as probes of dynamical spin fluctuations: some new aspects, special issue on muon spectroscopy, J. Phys.: Condens. Matter 16 ,1–16 (2004).

#### Invited lectures

* – Plenary talk in a conference where not all participants are invited, but there are no parallel sessions.

$ – Plenary talk in a conference where all participant are invited and there are no parallel sessions.

# – Plenary talk in a conference where not all participant are invited and there are parallel sessions.

- #Magnetic Equivalent of the isotope effect in cuprates , JEMS2012, Parma Italy 2012.
- *Magnetic Equivalent of the isotope effect in cuprates , Physics of Low-Dimensional Conductors, Zagreb, Croatia, 2012.
- $Magnetic Equivalent of the isotope effect in cuprates , Swiss Light Source workshop, Beatenberg, Switzerland, 2012.
- *Magnetic Equivalent of the isotope effect in cuprates , 1st China-Israel Meeting, Jerusalem, 2011.
- *Critical-doping universality for cuprate superconductors: Oxygen nuclear-magnetic-resonance investigation of (CaxLa1-x)(Ba1.75-xLa0.25+x)Cu3Oy, Trogir, Croatia, 2011.
- *The interaction between the magnetic and superconducting order parameters in a La1.94Sr0.06CuO4 wire, Cancun, Mexico, 2011.
- *Resonance techniques in Highly Frustrated Magnets, Slovenia, Feb 2010.
- $The Y2Mo2O7 puzzle, HFM workshop, Oxford U.K. Sep-2009.
- $Interaction between the magnetic and superconducting order parameters in cuprates, vortices work shop, Aspen, U.S.A. 2009.
- *Coma-Ruga 2009, Intenational workshop on Nanomagnetism and Superconductivity, Barcelona, Spain 2009.
- *Magnetic equivalent of the isotope effect in cuprates, Stripe, Erich, Italy 2008.
- *Magnetic equivalent of the isotope effect in cuprates, MiCuO 2007, Parma, Italy.
- $Magnetic equivalent of the isotope effect in cuprates and more experiments on correlated electrons, Moments and Multiplets program, KITP, Santa Barbara, U.S.A. 2007.
- $Magnetic equivalent of the isotope effect in cuprates, High temperature superconductivity work shop, Aspen, U.S.A 2007.
- *Magnetic equivalent of the isotope effect in cuprates, Gordon Research conference, Les Diablerets, Switzarland 2007.
- *Magnetic resonance in films, Annual meeting of the Israeli magnetic resonance, Technion Israel (given by Menahem Shai) 2007.
- *The origin of the pseudogap in high temperature superconductors, Minerva meeting, Cfar Ha Macabia Israel 2007
- *MuSR in Highly Frustrated Magnets, , the International Centre for Theoretical Physics in Trieste, Italy 2007.
- *Magnetic equivalent of the isotope effect in cuprates, Stripe06, Rome, Italy 2006.
- *Isotropic High spin Molecules, training school on NMR, MRI, µSR and MÖssbauer techniques, Pavia, Italy 2006.
- *A quest for frustration driven lattice Distortion, HFM meeting, Osaka, Japan 2006.
- #Charge inhomogeneity disorder relations in YBa2Cu3Oydetected by angle dependent nuclear quadrupole resonance, IPS meeting Carmiel 2005.
- *Detection of inhomogeneity-disorder correlation in YBa2Cu3Oyby angle dependent nuclear quadrupole resonance, International ICAM Workshop NMR/EPR of Correlated Electron Superconductors, Dresden, Germany 2005.
- *Common energy scale for magnetism and superconductivity in cuprates, Minerva meeting, Tel Aviv 2005.
- *Glass Transitions (dynamic aspects), Summer school on phase transitions, Zuoz Switzerland 2004.
- *Common energy scale for magnetism and superconductivity in underdoped cuprates, Minerva meeting, Blaubeuren, Germany 2003.
- *Common energy scale for magnetism and superconductivity in underdoped cuprates: a mSR investigation of (CaxLa1-x)(Ba1.75-xLa0.25+x)Cu3OyHigh Tc workshop, Virginia U.S.A, 2002.
- #Dynamics at T-> 0 in half-integer isotropic high spin molecules, The 9th international conference on muon spin resonance, Virginia, U.S.A, 2002.
- *Frustration driven lattice distortion; an NMR investigation of Y2Mo2O7: Indo-Israeli, Jerusalem, Israel 2002.
- *New frontiers in magnetism with high magnetic fields: High Magnetic Field mSR workshop, Zurich Switzerland, 2002.
- #Geometrically frustrated magnets, and the role of local dynamics: a mSR study, IPS Tel-Aviv, 2001.
- *Superconducting-glass phase separation in the superconducting state of under-doped cuprates as detected by mSR: Minerva-ISF, Cfar Hamacabia, Israel 2001.
- *Frustration driven lattice distortion; an NMR investigation of Y2Mo2O7: Highly Frustrated Magnets 2000 Waterloo Canada, 2000.
- *Magnetic field-time scaling relations and exotic spin correlations: a mSR study of spin-glasses, The 8th international conference on muon spin resonance, Les Diableres, Switzerland, 1999.
- #Magnetic field time scaling relations and exotic spin correlation: a mSR study, The Annual Magnetic Resonance Meeting, Weizmann Institute, 1999.
- #Spin glass dynamics above Tg:a mSR study of AgMn,5th French solid state conference, Orleans France, 1996.
- *Spin dynamics in magnetic insulators, Muon spectroscopy in materials science, Oxford UK, 1995.

#### Contributed talks and posters

- The symmetry of the spin Hamiltonian for some kagom? systems, Paris France, 2010.
- Magnetic equivalent of the isotope effect in cuprates, LT25, Amsterdam, Holland (2008).
- Ground state and excitation properties of the spin 1/2 kagome lattice, the International Centre for Theoretical Physics in Trieste, Italy (2007). (presented by Oren Ofer).
- Frustration Driven Lattice Distortion, Highly Frustrated Magnets workshop 2005, LaLond France (presented by Oren Ofer).
- Magnetic equivalent of the isotope effect in cuprates, International ICAM Workshop NMR/E PR of Correlated Electron Superconductors, Dresden, Germany 2005.> ( presented by Rinat Ofer).
- Manetope effect in cuprates, International conference on muon spin spectroscopy 2005, Oxford, U.K. (presented by Rinat Ofer).
- Common energy scale for magnetism and superconductivity, workshop on superconductivity 2004, Miami U.S.A (presented by Amit Kanigel).
- A quest for frustration driven lattice distortion. HFM 2003, Grenoble France (presented by Eva Sagi).
- Charge Inhomogeneity in YBa2Cu3Oy Detected by Angle Dependent Nuclear Quadrupole Resonance, ICM 2003 Rome Italy (presented by Shahar Levi).
- Extending the validity of the Uemura relation, ICM 2003 Rome Italy (presented by Amit Kanigel).
- Multi Bit magnetic memory with the Fe8 molecule, ICM 2003 Rome Italy (presented by Oren Shafir).
- Multi Bit magnetic memory with the Fe8 molecule, Low Dimension Magnet conference, Florence Italy 2003 (presented by Oren Shafir).
- Isotropic High Spin Molecules, Low Dimension Magnet conference, Florence Italy 2003.
- Common energy scale for magnetism and superconductivity, LT23 Hiroshima Japan (presented by Amit Kanigel).
- Isotropic High Spin Molecules, LT23 Hiroshima Japan (presented by Zaher Salman).
- Isotropic High Spin Molecules, The 8th international conference on muon spin resonance, Les Diableres, Switzerland, 1999 (presented by Zaher Salman).
- First order quantum-classical transition of the escape rate in the high spin molecule CrNi6: a mSR study, EPS Grenoble, France, 1998.
- Muon Spin Relaxation Measurements in Kagomé Lattice System SrCr8Ga4O19,mSR-93-Maui, Maui Hawaii, 1994.

### Refereed Papers in Conference proceedings

- O. Ofer, A. Keren, C. Baines and J. S. Gardner, Lack of static lattice distortion in Tb
_{2}Ti_{2}O_{7}, accepted to J. Phys.: Cond. Mat. 19, 145270 (2007). - Z. Salman, A. Keren, S. Megeawa, M. Ueda, O. Shafir, B. Barbara, C. Baines, Probing magnetic quantum tunneling in Fe
_{8}with muons, Physica B 326, 480-483 (2003). - Z. Salman, A. Keren, P. Mendels, A. Scuiller, and M. Verdaguer, Quantum fluctuations of the magnetization in high spin molecules – a mSR study, Physica B 289-290, 106-109 (2000).
- A. Keren, G. Bazalitsky, P. Mendels, I. Campbell and J. Lord, Magnetic field-time scaling relations and exotic spin correlations: a mSR study of spin-glasses, Physica B 289-290, 202-204 (2000).
- A. Keren and G. Bazalitsky, Muon polarization in the presence of exotic spin correlations, Physica B 289-290, 205-208 (2000).
- I. Mirebeau, M. Hennion, M. J. P. Gingras, A. Keren, K. Kojima, M. Lankin, G. M. Luke, B. Nachumi, W. D. Wu, Y. J. Uemnra, I. A. Campbell, and G. D. Morris, Depolarization in reentrant spin glasses: A comporison between neutron and muon probels, Hyp. Int. 105, 343-348 (1997).
- A. Keren, K. Kojima, L. P. Le, G. L. Luke, W. D. Wu, Y. J. Uemura, S. Tajima and S. Uchida, Muon-Spin-Rotation Measurements in the “Infinite-Chain” Ca
_{2}CuO_{3}, JMMM 140-144, 1641-1642 (1995). - A. Keren, Simulation of spin dynamics on kagomé and square lattices, JMMM 140-144, 1493-1494 (1995).
- W. D. Wu, A. Keren, L. P. Le, G. L. Luke, B. J. Sternlieb, Y. J. Uemura, D. C. Johnston, B. K. Cho, and P.Gehring, Magneticc Penetration Depth in V
_{3}Si and_{2}O_{4}Measured bmSR, Hyp. Int. 86, 615-621 (1994). - W. D. Wu, A. Keren, L. P. Le, G. L. Luke, B. J. Sternlieb, Y. J. Uemura, N. Sato, T. Komatsubara, and G. P. Meisner, mSR Studies in the Heavy Fermion Systems UNi
_{2}Al_{3}, UPd_{2}Al_{3}, and U_{2}PtC_{2}, Hyp. Int. 85, 425-430 (1994). - G. L. Luke, A. Keren, L. P. Le, Y. J. Uemura, W. D. Wu, D. Bonn, L. Taillefer, J. D. Garrett, Y. Onuki, Muon Spin Relaxation in Heavy Fermion Systems, Hyp. Int. 85, 397-409 (1994).
- A. Keren, L. P. Le, G. L. Luke, W. D. Wu, and Y. J. Uemura, Explaining m
^{+}Spin-Lattice Relaxation in MnF_{2}, below TN, By Scattering Function, Hyp. Int. 85, 363-368 (1994). - L. P. Le. A. Keren, G. L. Luke, W. D. Wu, Y. J. Uemura, W. S. Jenks, and R. Breslow, mSR Studies in an I
_{2}-doped Phenylene-Diamine Polymer, Hyp. Int. 85, 287-292 (1994). - A. Keren, Dynamic Spin Relaxation Processes of m
^{+}in an Antiferromagnet, Hyp. Int. 85, 281-286 (1994). - A. Keren, L. P. Le, G. L. Luke, W. D. Wu, Y. J. Uemura, Y. Ajiro, T. Asano, H. Kuriyama, M. Mekata and H.Kiruchi, Muon Spin Relaxation Measurements in Kagomé Lattice System SrCr
_{8}Ga_{4}O_{19}, Hyp. Int. 85, 181-186 (1994). - Y. J. Uemura, A. Keren, L. P. Le, G. L. Luke, and W. D. Wu, mSR Studies in Frustrated and/or Low-Dimensional Spin Systems, Hyp. Int. 85, 133-144 (1994).
- Mekata, N. Yaduchi, H. Kuriyama, T. Asano, K. Nagamine, A. Keren, L. P. Lr, G. M. Luke, W. D. Wu and Y. J. Uemura, mAR Study of Two-Dimentional Antiferromagnets, Delaf Type Compounds, Hyp. Int. 78, 423-427 (1993).

### Participation in organizing conferences

- 12th Internation conference on muon spin resonance, Cancun Maxico, 2011.
- Highly Frustrated Magnets, Dresden Germany, 2010.
- Muon spin spectroscopy, KEK, Japan 2008.
- Highly Frustrated Magnets, Braunschweig, Germany 2008.
- Highly Frustrated Magnets, LaLond, France 2005.
- International Conference on Muon Spin Spectroscopy, Oxford, U.K. 2005.
- Israel Physical society meeting, Technion, May-11 2000, organizing the magnetism and superconductivity session.