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- [1] Magnetic correlations of the quasi-one-dimensional half-integer spin-chain antiferromagnets SrM2V2O8 (M = Co, Mn)PHYSICAL REVIEW B, 2014, 89 (09):Bera, A. K.Lake, B.Stein, W. -D.Zander, S.
Influence of metal cation order on magnetic order in manganogrunerite, (Fe,Mg,Mn)7Si8O22(OH)2, a quasi-one-dimensional chain antiferromagnet
被引：0
|作者：
Reece, JJ
[1
]
Redfern, SAT
[1
]
机构：
[1] Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England
关键词：
amphibole;
order-disorder;
antiferromagnet;
dilution;
D O I：
10.1180/0026461046860227
中图分类号：
P57 [矿物学];
学科分类号：
070901 ;
摘要：
The magnetic susceptibility of ordered and partially disordered manganogrunerites (composition Ca0.1Mn1.9Mg1.25Fe3.562+Fe0.383+Si7.81O22(OH)(2) and Ca0.24Mn1.57Mg2.27Fe2.672+Fe0.323+Si7.84O22(OH)(2)) has been measured between room temperature and 5 K. The influence of disordering of metal cations over the M(1,2,3) sites of the octahedral ribbon in these amphiboles is to dilute Fe2+ within the ribbon. We observe a reduction in both theta(p) and T-N as a hinction of both increased Mg/(Mg+Fe) and metal cation disorder, linked to a reduction in the strength of magnetic coupling between and within the one-dimensional chains of the structure.
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页码：853 / 858
页数：6
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