JOURNAL OF LOW TEMPERATURE PHYSICS

Vol. 178 Nos. 5/6                                                                                                                                    March 2015


CONTENTS

Review Article

EPR Study of Superconductors............................................................................................................243
 I. A. Garifullin

Articles

Ferroelectric relaxation behavior and impedance spectroscopy of Pr and Sn doped
 La0.57Ba0.33MnO3  ceramics..............................................................................................................272
     F.I.H. Rhouma, A. Dhahri, L.Lahmar, K.Khirouni, J. Dhahri

The role of yttrium doping on the structural and superconducting properties of Sm1111
and its comparison with other (RE, Y)1111 (RE - La, Ce, and Nd) iron oxypnictides.......................285
    P M Aswathya, J B Anoojaa, Neson Varghesea , U Syamaprasad

Probing phase coherence via density of states for strongly correlated excitons.................................295
    V. Apinyan , T. K. Kopec

Temperature Dependence of the Spin-Hall Conductivity of a Two-Dimensional Impure
Rashba Electron Gas in the Presence of Electron - Phonon and Electron - Electron Interactions....331
   H. Yavari , M. Mokhtari , A. Bayervand

Inter- and Intra-Granular Flux Pinning Properties in Ba(Fe0.91Co0.09)2As2
Superconductor in AC and DC Magnetic Fields................................................................................345
    M. Nikolo, X. Shi , E. S. Choi , J. Jiang , J. D. Weiss , E. E. Hellstrom

The Effects of Pressure on the Structural, Electronic, and Lattice Dynamical
Properties of FeSe Superconductor.....................................................................................................355
   Hong-Yan Lu , Ni-NaWang , Meng-Jun Wei , San Chen , Yang Yang ,
   Ding-Fu Shao , Wen-Jian Lu


Spin polarization and suppression of superconductivity at nanoscale
 ferromagnet-superconductor interface...............................................................................................367
   E.S. Tuuli, K. Gloos

Breakdown of Potential Flow to Turbulence around a Sphere Oscillating in Superfluid 4He
above the Critical Velocity ................................................................................................................383

   W. Schoepe, R. Haenninen, and M. Niemetz

















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Journal of Low Temperature Physics