High-temperature series expansions with cyclic exchanges on a triangular lattice: Application to two-dimensional solid 3 He
High-temperature series expansions with cyclic exchanges on a triangular lattice: Application to two-dimensional solid 3 He
复制标题
三角晶格上循环交换的高温级数展开：在二维固体 3 He 中的应用
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
M. Roger
中科院分区：
文献类型：
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作者：
M. Roger
比热和自旋关联的高温级数展开可使用广义海森堡哈密顿量进行高达六阶，包括三角晶格上最重要的 n 粒子交换。这些系列提供了严格的框架来描述吸附在石墨上的 {sup 3}He 薄膜的热力学性质，其中循环环交换预计将发挥重要作用，正如在块状固体 {sup 3}He 中已经观察到的那样。 {版权} {ital 1997} {ital 美国物理学会}
High-temperature series expansions for the specific heat and spin correlations are performed up to sixth order with a generalized Heisenberg Hamiltonian including the most important n-particle exchanges on a triangular lattice. These series provide a rigorous framework to describe the thermodynamic properties of {sup 3}He films adsorbed on graphite where cyclic ring exchanges are expected to play an important role, as already observed in bulk solid {sup 3}He. {copyright} {ital 1997} {ital The American Physical Society}