Local magnetic properties and spin state of YBaCo2O5.5:: 59Co NMR study

被引：23

作者：

Itoh, M

Nawata, Y

Kiyama, T

Akahoshi, D

Fujiwara, N

Ueda, Y

机构：

[1] Nagoya Univ, Grad Sch Sci, Dept Phys, Chikusa Ku, Nagoya, Aichi 4648602, Japan

[2] Chiba Univ, Grad Sch Sci & Technol, Inage Ku, Chiba 2638522, Japan

[3] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2003年 / 329卷

关键词：

spin state; YBaCo2O5.5; NMR;

D O I：

10.1016/S0921-4526(02)02490-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Co-59 NMR studies have been made to clarify the spin state and local magnetic properties of YBaCo2O5.5, a new cobalt oxide with an oxygen-deficient and A-site ordered perovskite structure. In the antiferromagnetic state we observed four Co NMR spectra with internal fields of 216, 24, 19, and 0 kOe. This means that the crystal structure at low temperatures does not have the 2 x 1 x 1 superstructure observed at room temperature. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：751 / 752

页数：2

共 5 条

[1] Magnetic and M-I Transitions in YBaCo2O5+x (O≤x≤0.5) [J].