CATION (NI-63) DIFFUSION IN YBA2CU3O7-DELTA EPITAXIAL-FILMS

被引：15

作者：

GUPTA, D

LAIBOWITZ, RB

LACEY, JA

机构：

[1] IBM Research Division, Thomas J. Watson Research Center, Yorktown Heights

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.64.2675

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The diffusion of Ni63 has been measured in YBa2Cu3O7- epitaxial thin films on (100) SrTiO3 substrates in the 550-650°C range (orthorhombic phase) in O2 pressure of 1 bar, keeping in the 0.3-0.4 range. The diffusion behavior is described by D=1.3 exp[(-2.7 eV)/kT] cm2/sec and is many orders of magnitude slower than anion (oxygen) diffusion reported in the literature. A diffusion mechanism involving thermal vacancies and atomic jumps in diagonal directions of the type 110, 301, and 031 is proposed for long-range diffusion of cations occupying the Cu sites. © 1990 The American Physical Society.

引用

页码：2675 / 2678

页数：4

共 22 条

[1] THEORY OF OXYGEN-CONTENT, ORDERING AND KINETICS IN 1,2,3 HIGH-TEMPERATURE SUPERCONDUCTORS [J].

BAKKER, H ;

WESTERVELD, JPA ;

LOCASCIO, DMR ;

WELCH, DO .

PHYSICA C, 1989, 157 (01) :25-36

[2] CRITICAL-CURRENT MEASUREMENTS IN EPITAXIAL-FILMS OF YBA2CU3O7-X COMPOUND [J].

CHAUDHARI, P ;

KOCH, RH ;

LAIBOWITZ, RB ;

MCGUIRE, TR ;

GAMBINO, RJ .

PHYSICAL REVIEW LETTERS, 1987, 58 (25) :2684-2686

[3]

Chen N, COMMUNICATION

[4] ISOTOPE EFFECT FOR CATION SELF-DIFFUSION IN COO CRYSTALS [J].

CHEN, WK ;

PETERSON, NL ;

REEVES, WT .

PHYSICAL REVIEW, 1969, 186 (03) :887-&

[5] EFFECTS OF RADIATION-DAMAGE IN ION-IMPLANTED THIN-FILMS OF METAL-OXIDE SUPERCONDUCTORS [J].

CLARK, GJ ;

MARWICK, AD ;

KOCH, RH ;

LAIBOWITZ, RB .

APPLIED PHYSICS LETTERS, 1987, 51 (02) :139-141

[6] OXYGEN SELF-DIFFUSION IN NIO SINGLE-CRYSTALS [J].

DUBOIS, C ;

MONTY, C ;

PHILIBERT, J .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1982, 46 (03) :419-433

[7] DIRECT MEASUREMENT OF DIFFUSION AT TEMPERATURES LESS THAN 0.5 TM [J].

GUPTA, D .

THIN SOLID FILMS, 1975, 25 (01) :231-244

[8]

GUPTA D, 1989, B AM PHYS SOC, V34, P745

[9]

GUPTA D, 1988, DIFFUSION PHENOMENA, P4

[10] OXYGEN ORDERING AND THE ORTHORHOMBIC-TO-TETRAGONAL PHASE-TRANSITION IN YBA2CU3O7-X [J].

JORGENSEN, JD ;

BENO, MA ;

HINKS, DG ;

SODERHOLM, L ;

VOLIN, KJ ;

HITTERMAN, RL ;

GRACE, JD ;

SCHULLER, IK ;

SEGRE, CU ;

ZHANG, K ;

KLEEFISCH, MS .

PHYSICAL REVIEW B, 1987, 36 (07) :3608-3616

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