STUDIES ON THE LINEAR-CHAIN ANTIFERROMAGNETS - BA2MNX3 (X=S, SE, TE) AND THEIR SOLID-SOLUTIONS

被引：26

作者：

GREANEY, MA ^{[1
]}

RAMANUJACHARY, KV ^{[1
]}

TEWELDEMEDHIN, Z ^{[1
]}

GREENBLATT, M ^{[1
]}

机构：

[1] RUTGERS UNIV,DEPT CHEM,NEW BRUNSWICK,NJ 08903

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1993年 / 107卷 / 02期

关键词：

D O I：

10.1006/jssc.1993.1381

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The linear chain antiferromagnetism previously reported for Ba2MnS3 and Ba2MnSe3 is now demonstrated for Ba2MnTe3. The mixed-chalcogenide solid solutions Ba2MnXxX′3-x (X, X′ = S, Se, Te; x = 0, 1, 2) have been prepared and their electrical and magnetic properties studied. All of the phases are insulating with room temperature resistivities of approximately 102-103 Ω cm. The magnetic susceptibility curves of these mixed-chalcogenide phases exhibit broad maxima typical of one dimensional magnetic ordering. The linear-chain model of Bonner-Fisher for Heisenberg-type ions was applied to the susceptibility data. The geometry of the superexchange pathway appears to be critical in determining the strength of the magnetic coupling, with the polarizability of the bridging atom having little effect. © 1993 Academic Press, Inc.

引用

页码：554 / 562

页数：9

共 14 条

[1]

BONNER JC, 1964, PHYS REV A, V135, P640

[2]

CARLIN RL, 1986, MAGNETOCHEMISTRY, P163

[3] EXPERIMENTS ON SIMPLE MAGNETIC MODEL SYSTEMS [J].