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arXiv 1303.4149cond-mat.str-elcond-mat.mes-hall
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具有自旋轨道相互作用的Luttinger液体中的自旋共振

Spin resonance in Luttinger liquid with spin-orbit interaction

Oleg A. Tretiakov, K. S. Tikhonov, V. L. Pokrovsky

摘要:

量子线中的自旋-轨道相互作用在低温下导致自旋共振,即使在没有外部直流磁场的情况下也是如此。我们研究了电子-电子相互作用对共振的影响。这种相互作用在量子线中很强。我们发现,电子-电子相互作用的共振曲线的形状发生变化,并产生一个额外的尖点在等离子体频率。然而,除了非常强的电子-电子相互作用,这些变化是微弱的,因为这种相互作用本身并不打破自旋-旋转对称性,而自旋-轨道相互作用和外部磁场微弱地破坏了这种对称性。

英文摘要:

Spin-orbit interaction in quantum wires leads to a spin resonance at low temperatures, even in the absence of an external dc magnetic field. We study the effect of electron-electron interaction on the resonance. This interaction is strong in quantum wires. We show that the electron-electron interaction changes the shape of the resonance curve and produces an additional cusp at the plasmon frequency. However, except for very strong electron-electron interaction these changes are weak since this interaction by itself does not break the spin-rotation symmetry that is violated weakly by the spin-orbit interaction and external magnetic field.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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