PR-SUBSTITUTION EFFECT ON SUPERCONDUCTIVITY IN R(1-X)PR(X)BA(2)CU(3)O(7-Z) (R=Y,ND,GD)

被引：4
|
作者：
OKADA, A
ARAI, J
UMEZAWA, K
机构：
[1] Department of physics, Faculty of Science and Technology, Science University of Tokyo, Noda, Chiba
来源：
PHYSICA C | 1994年 / 235卷
关键词：
D O I：
10.1016/0921-4534(94)91633-0
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Pr-substitution effect on superconductivity is investigated for the samples of Gd1-xRxBa2Cu3O7-z (R=Pr Nd) through the measurements of lattice parameter, susceptibility, electric resistivity and ESR. With increasing R, lattice parameter c increases for R=Nd but decreases for R=Pr although these ion radius follows GB(3+)<Nd3+<Pr3+, suggesting presence of Pi(4+) ions. The lattice prameter ratio c/a varies considerably for R=Pr but not for R=Nd, implying anisotropic change of lattice parameter in the Pr-substituted samples. These results indicate the presence of both Pr3+ and Pr4+ ions, and also hybridization between Pr(3+)4f and O2p sigma orbitals which leads to covalent bonding along c axis.
引用
收藏
页码：817 / 818
页数：2
相关论文
共 50 条
  • [21] EFFECT OF PR SUBSTITUTION ON SUPERCONDUCTIVITY IN (PRXY1-X)BA2CU4O8
    YAMADA, N
    GUO, Z
    IKEDA, N
    KOHN, K
    IRI, T
    GONDAIRA, KI
    PHYSICA C, 1991, 185 : 809 - 810
  • [22] SUPERCONDUCTING AND MAGNETIC-PROPERTIES OF TLSR2CA(1-X)R(X)CU(2)O(7) [R=PR,TB]
    SUNDARESAN, A
    CHINCHURE, AD
    GHOSH, K
    RAMAKRISHNAN, S
    MARATHE, VR
    GUPTA, LC
    SHARON, M
    SHAH, SS
    PHYSICAL REVIEW B, 1995, 51 (06): : 3893 - 3898
  • [23] SUPERCONDUCTIVITY OF PR0.5R0.5BA2CU3O7-Y SYSTEM AND THE EXISTENCE OF A CRITICAL ION RADIUS FOR SUPPRESSION OF SUPERCONDUCTIVITY IN R1-XPRXBA2CU3O7-Y
    VASEK, P
    SVOBODA, P
    POLLERT, E
    ZEMANOVA, D
    KUFUDAKIS, A
    MITROS, C
    GAMARISEALE, H
    NIARCHOS, D
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1992, 196 (1-2): : 90 - 94
  • [24] SUPERCONDUCTING AND NORMAL-STATE PROPERTIES OF RE(1-X)PR(X)BA(2)CU(3)O(7-Y) SYSTEMS
    NAROZHNYI, VN
    KOCHETKOV, VN
    WARCHULSKA, J
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 140 : 1321 - 1322
  • [25] Crystallographic and physical properties of new orthorhombic Cu-1212 R(Ba2-xR′x)Cu3O7+y system (R, R′ = La, Pr, Nd; 0.65 &lt; x &lt; 1)
    Lin, BN
    Lin, YH
    Luo, HM
    Lee, TJ
    Ho, JC
    Ku, HC
    PHYSICA C, 2000, 341 (341-348): : 407 - 410
  • [26] DEMAGNETIZATION OF PR ION IN (R1-XPRX)BA2CU3O7-Y SYSTEMS (R=YB, ER, Y, DY, GD, EU, SM AND ND)
    XU, YH
    GUAN, WY
    PHYSICS LETTERS A, 1992, 163 (1-2) : 104 - 108
  • [27] X-RAY-DIFFRACTION AND INFRARED INVESTIGATION OF RBA(2)CU(3)O(7) AND R(0.5)PR(0.5)BA(2)CU(3)O(7) COMPOUNDS (R=Y AND LANTHANIDES)
    CHRYSSIKOS, GD
    KAMITSOS, EI
    KAPOUTSIS, JA
    PATSIS, AP
    PSYCHARIS, V
    KOUFOUDAKIS, A
    MITROS, C
    KALLIAS, G
    GAMARISEALE, E
    NIARCHOS, D
    PHYSICA C, 1995, 254 (1-2): : 44 - 62
  • [28] HEAT-CAPACITY OF (R1-X PRX)BA2CU3O7 (R = Y, GD)
    SCHAUDY, G
    HOLUBAR, T
    PILLMAYR, N
    LEITENBAUER, G
    HILSCHER, G
    ROGL, P
    HANNINGER, A
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 104 : 477 - 478
  • [29] THE EFFECT OF PR SUBSTITUTION FOR R ON THE SUPERCONDUCTIVITY OF RBA2CU3OY
    LIANG, JK
    CHEN, XL
    SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY, 1993, 36 (07): : 833 - 841
  • [30] ION SIZE EFFECT OF RARE-EARTH ON T-C, T-N AND RHO(N) IN (R(1-X)PR(X))BA2CU3O7-Y SYSTEMS (R=LU, YB, TM, ER, Y, HO, DY, GD, EU, SM AND ND)
    GUAN, WY
    PHYSICA C, 1994, 235 : 781 - 782
12345