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首页> 外文期刊>Journal of Experimental and Theoretical Physics >Magnetic response of a two-dimensional degenerate electron gas in nanostructures with cylindrical symmetry
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Magnetic response of a two-dimensional degenerate electron gas in nanostructures with cylindrical symmetry

机译：圆柱对称纳米结构中二维简并电子气的磁响应

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摘要

An investigation is made of the magnetic response of nanostructures with cylindrical symmetry located in a longitudinal magnetic field. Analytic expressions are obtained for the magnetic moment of the nanostructures, cylinders and bracelets. It is shown that the magnetic moment describes Aharonov-Bohm oscillations. The profile of the oscillations and the position of the oscillation maxima are studied. In the limit T -> 0 the curves of the magnetic response as a function of the magnetic field flux contain "beak"-shaped kinks, and the positions of the points at which these kinks occur are determined. The temperature dependence of the magnetic response is studied and the influence of the spin-magnetic interaction on the magnetic response of the nanostructures is examined. It is shown that this interaction destroys the periodicity of the magnetic response with respect to flux and gives rise to a monotonic term in the response.
机译：对位于纵向磁场中的具有圆柱对称性的纳米结构的磁响应进行了研究。获得了纳米结构，圆柱体和手镯的磁矩的解析表达式。结果表明，磁矩描述了Aharonov-Bohm振荡。研究了振荡的轮廓和振荡最大值的位置。在极限T-> 0中，作为磁场通量的函数的磁响应曲线包含“喙”形扭结，并确定发生这些扭结的点的位置。研究了磁响应的温度依赖性，并研究了自旋磁相互作用对纳米结构的磁响应的影响。结果表明，这种相互作用破坏了磁通量相对于磁通量的周期性，并在响应中产生了单调项。

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