DIFFUSE-X-RAY SCATTERING FROM LA2-XSRXNIO4 AND LA2-YSRYCUO4

被引：61

作者：

ISAACS, ED

AEPPLI, G

ZSCHACK, P

CHEONG, SW

WILLIAMS, H

BUTTREY, DJ

机构：

[1] BROOKHAVEN NATL LAB,OAK RIDGE INST SCI & EDUC,UPTON,NY 11973

[2] UNIV DELAWARE,COLBURN LAB,DEPT CHEM ENGN,NEWARK,DE 19716

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.72.3421

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use synchrotron x-ray scattering from La1.8Sr0.2NiO4 and La1.925Sr0.075CuO4 to establish a direct relationship between carriers due to Sr doping and strong diffuse scattering. In the nickelate the scattering is peaked at the fourfold symmetric satellite positions (+/- delta, +/- delta,l), where the basal-plane coordinate delta varies with the out-of-plane coordinate l of the momentum transfer. A similar scattering pattern is observed in the cuprate, but with smaller values for delta.

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页码：3421 / 3424

页数：4

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