INTERLAYER COUPLING EFFECT IN HIGH-TC SUPERCONDUCTORS PROBED BY YBA2CU3O7-X/PRBA2CU3O7-X SUPERLATTICES

被引：318

作者：

LI, Q

XI, XX

WU, XD

INAM, A

VADLAMANNATI, S

MCLEAN, WL

VENKATESAN, T

RAMESH, R

HWANG, DM

MARTINEZ, JA

NAZAR, L

机构：

[1] BELLCORE,RED BANK,NJ 07701

[2] UNIV CALIF LOS ALAMOS SCI LAB,CTR EXPLORATORY RES,LOS ALAMOS,NM 87545

[3] UNIV CALIF LOS ALAMOS SCI LAB,CTR DEV,LOS ALAMOS,NM 87545

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.64.3086

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The effect of coupling between layers of the high-Tc superconductors was studied by varying both the YBa2Cu3O7-x and PrBa2Cu3O7-x layer thicknesses in YBa2Cu3O7-x/PrBa2Cu3O7-x superlattices. Superconductivity was found even when the YBa2Cu3O7-x layers had nominal thicknesses as small as 12 (one unit-cell thickness) but coupling between unit-cell layers is needed to achieve a Tc of 90 K. The decrease of Tc in isolated YBa2Cu3O7-x layers with increasing sheet resistance is on the same scale of about Latin small letter h with stroke/e2 as observed for ordinary superconductors. © 1990 The American Physical Society.

引用

页码：3086 / 3089

页数：4

共 17 条

[1] SUPERCONDUCTING AND NORMAL STATE PROPERTIES OF Y1-XPRXBA2CU307-DELTA, Y1-XNAXBA2CU307-DELTA [J].