SINGLE-CRYSTAL SUSCEPTIBILITY OF THE S=1 ONE-DIMENSIONAL HEISENBERG-ANTIFERROMAGNET AGVP2S6

被引：23

作者：

ASANO, T

AJIRO, Y

MEKATA, M

YAMAZAKI, H

HOSOITO, N

SHINJO, T

KIKUCHI, H

机构：

[1] KYOTO UNIV,INST CHEM RES,UJI,KYOTO 611,JAPAN

[2] TSUKUBA UNIV,INST PHYS,TSUKUBA 305,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1994年 / 90卷 / 02期

关键词：

D O I：

10.1016/0038-1098(94)90944-X

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A reliable single crystal susceptibility data is reported to reveal the ground state property of the S = 1 one-dimensional Heisenberg antiferromagnet AgVP2S6. The observed susceptibilities for the parallel and perpendicular direction to the chain axis fall down rapidly as the temperature is lowered down to about 50 K, revealing a non-magnetic singlet ground state nature of the system. The results are interpreted quantitatively within the framework of the Haldane prediction, giving the quantum gap of E(g)/k(B) almost-equal-to 250 K which should be compared with 320 K from neutron scattering.

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页码：125 / 128

页数：4

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