HALDANE SPIN-STATE IN Y2BA(NI, ZN OR MG)O5

被引：35

作者：

BATLOGG, B

CHEONG, SW

RUPP, LW

机构：

[1] AT and T Bell Laboratories, Murray Hill

来源：

PHYSICA B | 1994年 / 194卷

关键词：

D O I：

10.1016/0921-4526(94)90416-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have identified Y2BaNiO5 as a new Haldane state chain compound with a magnetic excitation gap DELTA(min)/k(B) of 100 +/- 5 K and DELTA(min)/\J\ almost-equal-to 0.3. Single crystal results of chi(T --> 0) reveal a splitting of the excited magnetic state. The S = 1 chains have been severed in a controlled way by the substitution of Zn or Mg for Ni, and the resulting modifications of chi(T) are presented.

引用

页码：173 / 174

页数：2

共 4 条

[1] PHASE-EQUILIBRIUM STUDY OF THE Y-BA-NI-O SYSTEM AND STRUCTURAL CHARACTERIZATION OF THE NEW QUASI-ONE-DIMENSIONAL OXIDE Y2BANIO5 [J].