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The Spin Mass of an Electron Liquid

Z. Qian·G. Vignale·D. C. Marinescu
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Abstract

We show that in order to calculate correctly the {\it spin current} carried by a quasiparticle in an electron liquid one must use an effective "spin mass" $m_s$, that is larger than both the band mass, $m_b$, which determines the charge current, and the quasiparticle effective mass $m^*$, which determines the heat capacity. We present microscopic calculations of $m_s$ in a paramagnetic electron liquid in three and two dimensions, showing that the mass enhancement $m_s/m_b$ can be a very significant effect.

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Z. Qian, G. Vignale, D. C. Marinescu. 2004-03-13. The Spin Mass of an Electron Liquid. https://doi.org/10.1103/physrevlett.93.106601

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