SUCCESSIVE MAGNETIC PHASE-TRANSITIONS IN RBVBR3

被引：18

作者：

TANAKA, H ^{[1
]}

KATO, T ^{[1
]}

IIO, K ^{[1
]}

NAGATA, K ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,FAC SCI,DEPT PHYS,MEGURO KU,TOKYO 152,JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1992年 / 61卷 / 09期

关键词：

RBVBR3; SUSCEPTIBILITY; TORQUE; TRIANGULAR LATTICE; ANTIFERROMAGNET; SUCCESSIVE PHASE TRANSITIONS;

D O I：

10.1143/JPSJ.61.3292

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic properties of RbVBr3 with a deformed CsNiCl3 structure were investigated by means of the susceptibility and torque measurements. RbVBr3 undergoes the successive transitions, T(N1) = 28.0 K and T(N2) = 21.3 K and 19.0 K on heating and cooling, respectively. A large hysteresis was observed for the transition at T(N2). Metastable states appear between the intermediate phase and low-temperature phase. The intermediate phase has the weak ferromagnetic moment of the order of 10(-5) mu(B) perpendicular to the c-axis, while the low-temperature phase does not. It is compatible with the crystal structure that the weak moment due to the Dzyaloshinsky-Moriya interaction appears in linear chains. It is concluded that in the intermediate phase the spins form a collinear structure, probably ferrimagnetic one in the c-plane and a triangular one in the low-temperature phase.

引用

页码：3292 / 3302

页数：11

共 33 条

[1] LINEAR ANTIFERROMAGNETIC CHAINS IN HEXAGONAL ABCL3-TYPE COMPOUNDS (A - CS, OR RB, - B - CU, NI, CO, OR FE) [J].