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SPIN-WAVE CONTRIBUTION TO SPECIFIC HEAT OF MNF2, FEF2, COF2 AND NIF2

被引：12
作者：
BEGUM, NA
CRACKNELL, AP
JOSHUA, SJ
REISSLAND, JA
机构：
[1] Department of Physics, University of Essex, Colchester, Essex
来源：
JOURNAL OF PHYSICS PART C SOLID STATE PHYSICS | 1969年 / 2卷 / 12期
关键词：
D O I：
10.1088/0022-3719/2/12/317
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
By making use of the recently measured spin-wave dispersion relations we have calculated the spin-wave contributions to the low-temperature specific heats of antiferromagnetic MnF2, FeF2, CoF2 and NiF2 from 0 to 50°K (0 to 35°K for CoF2) using two different numerical methods. The results are compared with the experimental measurements of Stout and Catalano for temperatures of 15°K and above; it is suggested that further experimental measurements below 15°K would be worth while.
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页码：2329 / +
页数：1
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