Nuclear Magnetism of Two Dimensional Solid 3He Adsorbed on Plated Graphite

被引:0
作者
A. Casey
H. Patel
J. Nyéki
B.P. Cowan
J. Saunders
机构
[1] Royal Holloway University of London,Millikelvin Laboratory, Department of Physics
[2] Egham,undefined
来源
Journal of Low Temperature Physics | 1998年 / 113卷
关键词
Graphite; Heat Capacity; Magnetic Material; Magnetization Measurement; Nuclear Spin;
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学科分类号
摘要
Nuclear spin exchange in the low density two dimensional quantum solid formed by3He adsorbed on graphite plated by a bilayer of HD has been studied by heat capacity and magnetization measurements. The low densities result in a frustrated magnet with significantly larger effective exchange constants than observed in the antiferromagnetic second layer of3He on bare graphite. Promotion to a fluid overlayer occurs at 6.8 nm−2. A ferromagnetic anomaly is observed in magnetization measurements at 10 nm−2with an effective exchange constant of 1.0 mK, about half the value observed at the corresponding anomaly on bare graphite.
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页码:265 / 270
页数:5
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