Local magnetic fields in antiferromagnetic Bi2CuO4:: as seen from 63,65Cu and 209Bi nuclear resonance

被引：2

作者：

Khozeev, DF ^{[1
]}

Gippius, AA

Morozova, EN

Vasil'ev, AN

Zalessky, AV

Hoffmann, W

Lüders, K

Dhalenne, G

Revcolevshi, A

机构：

[1] Moscow MV Lomonosov State Univ, Moscow 119899, Russia

[2] Free Univ Berlin, D-14195 Berlin, Germany

[3] Univ Paris, F-91405 Orsay, France

来源：

PHYSICA B | 2000年 / 284卷 / 284期

关键词：

AFNR; NQR;

D O I：

10.1016/S0921-4526(99)02528-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A complex spin-echo spectrum of Cu-63,Cu-65 and Bi-209 has been observed in antiferromagnetic Bi2CuO4 at 4.2 K. The spectrum consists of Cu-63,Cu-65 AFNR and Bi-209 NQR, The Cu AFNR is characterized by the internal field H-int = 99 kOe at Cu nuclei and by the (63)nu(Q) = 10 MHz. It is argued that the low-limit of the internal field at the Bi-209 nuclei is 4.3 kOe. The occurrence of H-hf at Bi-209 nuclei shows that Bi3+ anions take part in the superexchange interaction between Cu atoms along the Cu-O-Bi-O-Cu bonds. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

引用

页码：1377 / 1378

页数：2