THE OXYGEN ISOTOPE EFFECT IN SUPERCONDUCTING YBA2CU3O7-DELTA

被引：30

作者：

FRANCK, JP

JUNG, J

SALOMONS, G

MINER, WA

MOHAMED, MAK

CHRZANOWSKI, J

GYGAX, S

IRWIN, JC

MITCHELL, DF

SPROULE, GI

机构：

[1] SIMON FRASER UNIV,DEPT PHYS,BURNABY V5A 1S6,BC,CANADA

[2] NATL RES COUNCIL CANADA,DIV CHEM,OTTAWA K1A 0R9,ONTARIO,CANADA

来源：

PHYSICA C | 1990年 / 172卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0921-4534(90)90647-W

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on measurements of the effect of O-18-O-16 substitution on the superconducting properties of Y1Ba2Cu3O7-delta. Substitutions were made by gas-exchange alone, and by gas exchange in conjunction with substituted BaCO3 and CuO. From Raman scattering we find that gas-exchange alone leads to lower substitution levels, particularly in the bridging oxygen O(4) position. Gas-exchanged samples give an isotope effect of 0.3 to 0.4 K. Use of substituted materials leads to samples with an isotope effect of up to 0.9 K in the resistance transition and 1.7 K in the magnetically determined transition.

引用

页码：90 / 104

页数：15

共 58 条

[1] TRANSITION-TEMPERATURE OF STRONG-COUPLED SUPERCONDUCTORS REANALYZED
ALLEN, PB
DYNES, RC
[J]. PHYSICAL REVIEW B, 1975, 12 (03): : 905 - 922
[2] STRONG-COUPLING EFFECTS AND ISOTOPE EXPONENTS IN HIGH-TC SUPERCONDUCTORS
ASHAUER, B
LEE, W
RAINER, D
RAMMER, J
[J]. PHYSICA B & C, 1987, 148 (1-3): : 243 - 245
[3] THE CUPRATE SUPERCONDUCTORS - NARROW CORRELATED-ELECTRON BANDS AND INTERLAYER PAIRING VIA PLANE-CHAIN CHARGE-TRANSFER
ASHKENAZI, J
KUPER, CG
[J]. PHYSICA C, 1989, 162 : 767 - 768
[4] THE ISOTOPE EFFECT AND SUPERCONDUCTING OXIDES
BARBEE, TW
COHEN, ML
BOURNE, LC
ZETTL, A
[J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1988, 21 (35): : 5977 - 5985
[5] BATES F, COMMUNICATION
[6] NORMAL-MODES OF TETRAGONAL YBA2CU3O6 AND ORTHORHOMBIC YBA2CU3O7
BATES, FE
[J]. PHYSICAL REVIEW B, 1989, 39 (01): : 322 - 327
[7] NORMAL-COORDINATE CALCULATION OF THE ZERO-WAVE-VECTOR VIBRATIONS OF YBA2CU3O7
BATES, FE
ELDRIDGE, JE
[J]. SOLID STATE COMMUNICATIONS, 1987, 64 (12) : 1435 - 1439
[8] ISOTOPE EFFECT IN THE HIGH-TC SUPERCONDUCTORS BA2YCU3O7 AND BA2EUCU3O7
BATLOGG, B
CAVA, RJ
JAYARAMAN, A
VANDOVER, RB
KOUROUKLIS, GA
SUNSHINE, S
MURPHY, DW
RUPP, LW
CHEN, HS
WHITE, A
SHORT, KT
MUJSCE, AM
RIETMAN, EA
[J]. PHYSICAL REVIEW LETTERS, 1987, 58 (22) : 2333 - 2336
[9] OXYGEN ISOTOPE EFFECT ON CRITICAL-TEMPERATURE AND PHONON MODES IN YBA2CU3O7
BENITEZ, EL
LIN, JJ
POON, SJ
FARNETH, WE
CRAWFORD, MK
MCCARRON, EM
[J]. PHYSICAL REVIEW B, 1988, 38 (07): : 5025 - 5027
[10] SUPERCONDUCTIVITY IN OXIDES - TOWARD A UNIFIED PICTURE
BISHOP, AR
MARTIN, RL
MULLER, KA
TESANOVIC, Z
[J]. ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1989, 76 (01): : 17 - 24

← 1 2 3 4 5 6 →