SUPERCONDUCTIVITY AND HOLE DOPING IN PR0.5CA0.5BA2CU3O7-DELTA THIN-FILMS

被引：166

作者：

NORTON, DP

LOWNDES, DH

SALES, BC

BUDAI, JD

CHAKOUMAKOS, BC

KERCHNER, HR

机构：

[1] Solid State Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6056

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.66.1537

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have grown superconducting Pr0.5Ca0.5Ba2Cu3O7-delta epitaxial thin films that exhibit a superconducting onset temperature of 43 K with T(c)(R = 0) = 34.9 K. This is the first time, to our knowledge, that 1:2:3-phase superconductivity has been achieved by substituting Ca for Pr, without the presence in the alloy of Y or any other rare-earth element R for which RBa2Cu3O7-delta is superconducting. This result supports the view that hole localization/filling contributes substantially to the suppression of superconductivity by Pr in PrBa2Cu3O7-delta, and clearly demonstrates that this suppression can be compensated by appropriate hole doping with Ca.

引用

页码：1537 / 1540

页数：4

共 29 条

[1] X-RAY STUDY OF INPLANE EPITAXY OF YBA2CU3OX THIN-FILMS
BUDAI, JD
FEENSTRA, R
BOATNER, LA
[J]. PHYSICAL REVIEW B, 1989, 39 (16): : 12355 - 12358
[2] SUPERCONDUCTING AND NORMAL STATE PROPERTIES OF Y1-XPRXBA2CU307-DELTA, Y1-XNAXBA2CU307-DELTA
DALICHAOUCH, Y
TORIKACHVILI, MS
EARLY, EA
LEE, BW
SEAMAN, CL
YANG, KN
ZHOU, H
MAPLE, MB
[J]. SOLID STATE COMMUNICATIONS, 1988, 65 (09) : 1001 - 1006
[3] MAGNETIC ORDER AND SUPERCONDUCTIVITY IN Y1-XPRXBA2CU3O7
FELNER, I
YARON, U
NOWIK, I
BAUMINGER, ER
WOLFUS, Y
YACOBY, ER
HILSCHER, G
PILLMAYR, N
[J]. PHYSICAL REVIEW B, 1989, 40 (10): : 6739 - 6744
[4] EVIDENCE AGAINST HOLE FILLING BY PR IN YBA2CU3O7
FINK, J
NUCKER, N
ROMBERG, H
ALEXANDER, M
MAPLE, MB
NEUMEIER, JJ
ALLEN, JW
[J]. PHYSICAL REVIEW B, 1990, 42 (07): : 4823 - 4826
[5] SUPERCONDUCTIVITY OF RARE EARTH-BARIUM-COPPER OXIDES
FISK, Z
THOMPSON, JD
ZIRNGIEBL, E
SMITH, JL
CHEONG, SW
[J]. SOLID STATE COMMUNICATIONS, 1987, 62 (11) : 743 - 744
[6] SUPPRESSION OF SUPERCONDUCTIVITY IN PRBA2CU3O7 - 4-F AND CONDUCTION-BAND HYBRIDIZATION EFFECT
GUO, GY
TEMMERMAN, WM
[J]. PHYSICAL REVIEW B, 1990, 41 (10): : 6372 - 6378
[7] SUPERCONDUCTIVITY ABOVE 90 K IN THE SQUARE-PLANAR COMPOUND SYSTEM ABA2CU3O6+X WITH A = Y, LA, ND, SM, EU, GD, HO, ER, AND LU
HOR, PH
MENG, RL
WANG, YQ
GAO, L
HUANG, ZJ
BECHTOLD, J
FORSTER, K
CHU, CW
[J]. PHYSICAL REVIEW LETTERS, 1987, 58 (18) : 1891 - 1894
[8] INAM A, IN PRESS
[9] ON THE LOCALIZATION OF CHARGE-CARRIERS AND SUPPRESSION OF SUPERCONDUCTIVITY BY PRASEODYMIUM IN SYSTEMS DERIVED FROM YBA2CU3O7-D
INFANTE, C
ELMOUSLY, MK
DAYAL, R
HUSAIN, M
SIDDIQI, SA
GANGULY, P
[J]. PHYSICA C, 1990, 167 (5-6): : 640 - 656
[10] KANG JS, 1989, J LESS-COMMON MET, V24, P25

← 1 2 3 →