Phonon anomalies in the infrared conductivity of the RuSr2GdCu2O8 ferromagnetic superconductor

被引：2
|
作者：
Boris, AV
Bernhard, C
Kovaleva, NN
Mandal, P
Loidl, A
机构：
[1] Max Planck Inst FKF, D-70569 Stuttgart, Germany
[2] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia
[3] Saha Inst Nucl Phys, Kolkata 700064, W Bengal, India
[4] Univ Augsburg, EKM, D-86135 Augsburg, Germany
来源：
PHYSICA B-CONDENSED MATTER | 2002年 / 312卷
关键词：
superconductivity; ferromagnetism; ruthenate-cuprate;
D O I：
10.1016/S0921-4526(01)01228-5
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have performed ellipsometric measurements of the infrared dielectric response of RuSr2GdCu2O8 polycrystalline ceramics. The transformation of the Cu-O bending phonon mode at 288 cm(-1) in the normal state to a broad absorption band at 308 cm(-1) in the superconducting state has been observed. This observation strikingly resembles the c-axis optical conductivity data reported for the YBa2Cu3O6.45 crystals. The anomalous softening of the Ru-related phonon mode at 190 cm(-1) has been observed on decreasing temperature below the magnetic T-M = 133 K transition temperature. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：797 / 799
页数：3
相关论文
共 50 条
  • [1] Phonon anomalies and electron-phonon interaction in the RuSr2GdCu2O8 ferromagnetic superconductor:: Evidence from infrared conductivity -: art. no. 184505
    Boris, AV
    Mandal, P
    Bernhard, C
    Kovaleva, NN
    Pucher, K
    Hemberger, J
    Loidl, A
    PHYSICAL REVIEW B, 2001, 63 (18):
  • [2] Doping studies of the ferromagnetic superconductor RuSr2GdCu2O8
    Mclaughlin, AC
    Janowitz, V
    McAllister, JA
    Attfield, JP
    JOURNAL OF MATERIALS CHEMISTRY, 2001, 11 (01) : 173 - 178
  • [3] Structure and microstructure of the ferromagnetic superconductor RuSr2GdCu2O8
    McLaughlin, AC
    Zhou, W
    Attfield, JP
    Fitch, AN
    Tallon, JL
    PHYSICAL REVIEW B, 1999, 60 (10): : 7512 - 7516
  • [4] Effect of Ir substitution in the ferromagnetic superconductor RuSr2GdCu2O8
    Jurelo, A. R.
    Andrade, S.
    Jardim, R. F.
    Fonseca, F. C.
    Torikachvili, M. S.
    Lacerda, A. H.
    Ben-Dor, L.
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2007, 454 (1-2): : 30 - 37
  • [5] Giant magnetocaloric effect in ferromagnetic superconductor RuSr2GdCu2O8
    Midya, A.
    Mandal, P.
    JOURNAL OF APPLIED PHYSICS, 2014, 116 (22)
  • [6] Giant magnetocaloric effect in ferromagnetic superconductor RuSr2GdCu2O8
    1600, American Institute of Physics Inc. (116):
  • [7] Superconductivity in ferromagnetic RuSr2GdCu2O8
    Pickett, WE
    Weht, R
    Shick, AB
    PHYSICAL REVIEW LETTERS, 1999, 83 (18) : 3713 - 3716
  • [8] Superconductivity in ferromagnetic RuSr2GdCu2O8
    Zhu, JX
    Ting, CS
    Chu, CW
    PHYSICAL REVIEW B, 2000, 62 (17) : 11369 - 11372
  • [9] A variable temperature structural study of the ferromagnetic superconductor RuSr2GdCu2O8
    McLaughlin, AC
    Attfield, JP
    Tallon, JL
    INTERNATIONAL JOURNAL OF INORGANIC MATERIALS, 2000, 2 (01): : 95 - 99
  • [10] Heat capacity and transport studies of the ferromagnetic superconductor RuSr2GdCu2O8
    Tallon, JL
    Loram, JW
    Williams, GVM
    Bernhard, C
    PHYSICAL REVIEW B, 2000, 61 (10) : R6471 - R6474
12345