Exchange-correlation and layer-thickness effects in quasi-two dimensional electron liquids

M.W.C. Dharma-wardana

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Exchange-correlation and layer-thickness effects in quasi-two dimensional electron liquids

机译：准二维电子液体中的交换相关和层厚效应

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We demonstrate a replacement of the non-uniform sub-band density of quasi-2D electron layers by an effective uniform-slab density. Exchange, correlation and Fermi-liquid properties are determined via a mapping of the electron liquid to a classical fluid, using the hyper-netted-chain equation inclusive of bridge corrections, (i.e. the CHNC), as a function of the density, spin-polarization, layer width and the temperature. Our parameters-free theory is in good accord with quantum simulations, with effective-mass and spin-susceptibility results for 2D layers found in GaAs/AlGaAs structures.

机译：我们证明了用有效的均匀平板密度替代准二维电子层的不均匀子带密度。交换，相关和费米液体性质是通过电子液体到经典液体的映射来确定的，使用超网状链方程（包括桥校正（即CHNC））作为密度，自旋函数的函数。极化，层宽和温度。我们的无参数理论与量子模拟非常吻合，GaAs / AlGaAs结构中二维层的有效质量和自旋磁化率结果。

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来源
《Solid State Communications》 |2005年第2期|p.76-80|共5页
作者
M.W.C. Dharma-wardana;
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作者单位

Institute of Microstructural Sciences, National Research Council of Canada, Ottawa, Canada K1A 0R6;

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原文格式 PDF
正文语种 eng
中图分类固体物理学;
关键词
A. 2D electron gas; A. Nanostructures; A. Strongly correlated electrons; E. Density-functional theory;

机译：A.2D电子气;A。纳米结构;A.强相关电子;E.密度泛函理论;

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Exchange-correlation and layer-thickness effects in quasi-two dimensional electron liquids

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