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Electron spin resonance in a two-dimensional Fermi liquid with spin-orbit coupling

机译:具有自旋轨道耦合的二维费米液体中的电子自旋共振

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摘要

Electron spin resonance (ESR) is usually viewed as a single-particle phenomenon protected from the effect of many-body correlations. We show that this is not the case in a two-dimensional Fermi liquid (FL) with spin-orbit coupling (SOC). Depending on whether the in-plane magnetic field is below or above some critical value, ESR in such a system probes up to three chiral-spin collective modes, augmented by the spin mode in the presence of the field, or the Silin-Leggett mode. All the modes are affected by both SOC and FL renormalizations. We argue that ESR can be used as a probe not only for SOC but also for many-body physics.
机译:电子自旋共振(ESR)通常被视为一种单粒子现象,不受多体关联的影响。我们证明,在具有自旋轨道耦合(SOC)的二维费米液体(FL)中,情况并非如此。根据面内磁场是低于还是高于某个临界值,这种系统中的ESR最多探测三种手性自旋集体模式,在存在磁场的情况下通过自旋模式或Silin-Leggett模式进行增强。所有模式都受SOC和FL重新规范化的影响。我们认为,ESR不仅可以用作SOC的探针,还可以用作多体物理学的探针。

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  • 来源
    《Physical review》 |2016年第4期|045134.1-045134.11|共11页
  • 作者单位

    Department of Physics, University of Florida, Gainesville, Florida 32611, USA,National High Magnetic Field Laboratory, Tallahassee, Florida 32310, USA;

    Department of Physics, University of Florida, Gainesville, Florida 32611, USA;

    Department of Physics, University of Florida, Gainesville, Florida 32611, USA;

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