Pure and random-field quantum criticality in the dipolar Ising model: Theory of Mn12 acetates

被引:14
作者
Millis, A. J. [1 ]
Kent, A. D. [2 ]
Sarachik, M. P. [3 ]
Yeshurun, Y. [4 ]
机构
[1] Columbia Univ, Dept Phys, New York, NY 10027 USA
[2] NYU, Dept Phys, New York, NY 10003 USA
[3] CUNY City Coll, Dept Phys, New York, NY 10031 USA
[4] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel
关键词
MAGNETIZATION; MAGNET;
D O I
10.1103/PhysRevB.81.024423
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A theoretical model for the Mn-12 acetates is derived including a "random-field" effect arising from isomer effects in some families of host acetate materials. Estimates for the important energy scales are given. Phase boundaries are determined using a mean-field approximation. Predictions for experiment are presented
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页数:11
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