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Spontaneous Magnetisation in a Quantum Wire

V. V'yurkov·A. Vetrov
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Abstract

An existence of predominant symmetrical spin configuration (spin polarised phase) and "diluted" density of states (pseudo-gap) in a layer under the Fermi level in a quantum wire is predicted. The condition of cross-over from non-polarised phase to polarised one was derived. The transition occurs for sufficiently low electron density in a wire and is accompanied by an acute decrease of electron density of states near the Fermi level.It may result in a corresponding decrease of conductance. A similar effect may exist in a two-dimensional electron gas.

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V. V'yurkov, A. Vetrov. 2001-05-16. Spontaneous Magnetisation in a Quantum Wire. https://doi.org/10.1088/0957-4484%2F11%2F4%2F329

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