GRANULAR SUPERCONDUCTIVITY IN THE ELECTRON-DOPED COMPOUNDS LN2-XMXCUO4-Y (LN = PR, ND, SM, EU, M = CE, TH)

被引：11

作者：

GERBER, A

BEILLE, J

GRENET, T

CYROT, M

机构：

来源：

EUROPHYSICS LETTERS | 1990年 / 12卷 / 05期

关键词：

D O I：

10.1209/0295-5075/12/5/011

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the superconducting properties of the electron-doped compounds Ln2-, M, Cu04-, (Ln = Pr, Nd, Sm, Eu; M = Ce, Th). Three characteristic temperatures of the superconducting transition are defined, corresponding to: the macroscopic resistive transition midpoint (Tcmid), the diamagnetic signal onset (Tcx), and the intragrain transition temperature (Tcg). Tcx and Tcg are found to vary weakly in the series of the studied compounds, in contrast with T,.mid, which is strongly reduced in and Sml.&5Th0.15Cu04-y samples. © 1990 IOP Publishing Ltd.

引用

页码：441 / 446

页数：6

共 16 条

[11] MARKERT JT, IN PRESS PHYS REV LE
[12] HALL-EFFECT OF LA2-XSRXCUO4 - IMPLICATIONS FOR THE ELECTRONIC-STRUCTURE IN THE NORMAL STATE
ONG, NP
WANG, ZZ
CLAYHOLD, J
TARASCON, JM
GREENE, LH
MCKINNON, WR
[J]. PHYSICAL REVIEW B, 1987, 35 (16): : 8807 - 8810
[13] GLOBAL PHASE COHERENCE IN TWO-DIMENSIONAL ANTIGRANULOCYTES SUPERCONDUCTORS
ORR, BG
JAEGER, HM
GOLDMAN, AM
KUPER, CG
[J]. PHYSICAL REVIEW LETTERS, 1986, 56 (04) : 378 - 381
[14] SUPERCONDUCTIVITY PRODUCED BY ELECTRON DOPING IN CUO2-LAYERED COMPOUNDS
TAKAGI, H
UCHIDA, S
TOKURA, Y
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (10) : 1197 - 1200
[15] A SUPERCONDUCTING COPPER-OXIDE COMPOUND WITH ELECTRONS AS THE CHARGE-CARRIERS
TOKURA, Y
TAKAGI, H
UCHIDA, S
[J]. NATURE, 1989, 337 (6205) : 345 - 347
[16] WAWNG ZZ, 1987, PHYS REV B, V36, P7222

← 1 2 →