A-AXIS ORIENTED EPITAXIAL YBA2CU3O7-X-PRBA2CU3O7-Y HETEROSTRUCTURES

被引：172

作者：

INAM, A ^{[1
]}

ROGERS, CT ^{[1
]}

RAMESH, R ^{[1
]}

REMSCHNIG, K ^{[1
]}

FARROW, L ^{[1
]}

HART, D ^{[1
]}

VENKATESAN, T ^{[1
]}

WILKENS, B ^{[1
]}

机构：

[1] UNIV VIENNA,INST PHYS CHEM,A-1010 VIENNA,AUSTRIA

来源：

APPLIED PHYSICS LETTERS | 1990年 / 57卷 / 23期

关键词：

D O I：

10.1063/1.104179

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have grown YBa2Cu3O7-x-PrBa 2Cu3O7-y heterostructures with the perovskite a axis normal to the surface of a variety of (001) oriented substrates using the pulsed laser deposition technique. X-ray diffraction studies indicate little or no formation of the traditional c-axis normal orientation usually nucleated on these substrates, while ion channeling, transmission electron microscopy (TEM), and Raman scattering studies reveal a highly ordered crystalline structure similar in quality to that obtained in the best c-axis oriented films. Superconducting transition temperatures, for current transport in the plane of the films, consistently exceed 80 K, but are probably lower than the optimum 92 K transition expected for YBa2Cu3O7-x due to the presence of growth twin boundaries between grains with the c axis oriented along the two substrate directions.

引用

页码：2484 / 2486

页数：3

共 14 条

[1] LARGELY ANISOTROPIC SUPERCONDUCTING CRITICAL CURRENT IN EPITAXIALLY GROWN BA2YCU3O7-Y THIN-FILM
ENOMOTO, Y
MURAKAMI, T
SUZUKI, M
MORIWAKI, K
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1987, 26 (07): : L1248 - L1250
[2] ANISOTROPIC ELECTRICAL-PROPERTIES OF EPITAXIAL YBA2CU3O7-DELTA FILMS ON (110) SRTIO3
GUPTA, A
KOREN, G
BASEMAN, RJ
SEGMULLER, A
HOLBER, W
[J]. PHYSICA C, 1989, 162 : 127 - 128
[3] AS-DEPOSITED HIGH-TC AND JC SUPERCONDUCTING THIN-FILMS MADE AT LOW-TEMPERATURES
INAM, A
HEGDE, MS
WU, XD
VENKATESAN, T
ENGLAND, P
MICELI, PF
CHASE, EW
CHANG, CC
TARASCON, JM
WACHTMAN, JB
[J]. APPLIED PHYSICS LETTERS, 1988, 53 (10) : 908 - 909
[4] INAM A, 1989, 1989 P SPIE C HIGH T, P148
[5] INAM A, UNPUB
[6] LI Q, 1990, PHYS REV LETT, V64, P804
[7] CONTROL OF GROWTH DIRECTION OF EPITAXIAL YBACUO THIN-FILMS ON SRTIO3-SUBSTRATES
LINKER, G
XI, XX
MEYER, O
LI, Q
GEERK, J
[J]. SOLID STATE COMMUNICATIONS, 1989, 69 (03) : 249 - 253
[8] AS-GROWN Y-BA-CU-O THIN-FILMS BY REACTIVE COEVAPORATION WITH OXYGEN PLASMA COOLING
MATSUMOTO, M
AKOH, H
TAKADA, S
[J]. JOURNAL OF APPLIED PHYSICS, 1989, 66 (08) : 3907 - 3909
[9] MCCARTY KF, UNPUB
[10] RAMESH R, UNPUB

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