S. Merchant, J.N. McElearney, G.E. Shankle, R.L. Carlin
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引用次数: 25
摘要
报道了[(CH3)3NH] MnX3.2H2O (X=Cl Br)的比热和零场磁化率。线性链的各向同性海森堡模型提供了合理的拟合数据，但也观察到实质性的各向异性。对于氯化物，TN = 0.98 K, J/ K = -0.36 K, zJ′/ K = -0.55 K;溴化物的TN = 1.56 K, J/ K = -0.41 K, zJ′/ K = -0.74 K。提出了一种倾斜反铁磁结构。
Two anisotropic Heisenberg linear chain manganese compounds
The specific heat and zero-field magnetic susceptibilities of [(CH3)3NH] MnX3.2H2O (X=Cl Br) are reported. The isotropic Heisenberg model for linear chains offers a reasonable fit to the data, but a substantial anisotropy is also observed. For the chloride, TN = 0.98 K, J/k = -0.36 K, and zJ′/k = -0.55 K; for the bromide, TN = 1.56 K, J/k = -0.41 K, and zJ′/k = -0.74 K. A canted antiferromagnetic structure is proposed.
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