XANES AND EXAFS STUDIES ON A NEW SUPERCONDUCTING INTERCALATION COMPOUND, AGIBI2SR2CACU2OY

被引：6

作者：

CHOY, JH ^{[1
]}

KIM, DK ^{[1
]}

HWANG, SJ ^{[1
]}

HWANG, SH ^{[1
]}

HUR, NH ^{[1
]}

机构：

[1] KOREA RES INST STAND & SCI, SUPERCONDUCT LAB, TAEJON 305606, SOUTH KOREA

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)91736-1

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new superconducting intercalation compound, AgIBi2Sr2CaCu2Oy, in which the basal spacing is increased by 7.352 Angstrom, has been prepared from the mixture of polycrystalline Bi2Sr2CaCu2Oy and Ag powder under iodine vapor at 190 degrees C in an ambient atmosphere. The X-ray absorption studies on I L(I)- and Ag K-edges indicate that there is no charge-transfer between the intercalated guest species, AgI and host layer. A slight T-C depression (Delta T-C approximate to 13K) upon AgI intercalation is, therefore, probably due to the weakening of interlayer coupling, but the hole donation to the host upon oxygen intercalation may not be excluded.

引用

页码：1023 / 1024

页数：2

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