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Spin waves on the surface of the nonferromagnetic nanotube in magnetic field

机译:磁场中非铁磁性纳米管表面的自旋波

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摘要

Propagating in the nonferromagnetic electron gas on the cylindrical nanotubes surface spin waves in longitudinal magnetic field are considered. The spectrum of electrons in the HartreeFock approximation was applied. The dynamic spin susceptibility of a degenerate electron gas was derived using the random phase approximation. The spectra of intra-subband and inter-subband magnons were calculated in quasiclassical and quantum limits. The quantity of spin waves spectrum branches depends on the amount of filled subbands. In case the filled subband numbers are large, the waves frequencies undergo oscillations of de Haasvan Alphen and AharonovBohm types with the electron density and the magnetic induction changes.
机译:考虑在纵向磁场中在圆柱纳米管表面上的非铁磁电子气中传播的自旋波。应用HartreeFock近似中的电子光谱。简并电子气的动态自旋磁化率使用随机相位近似法得出。在准经典和量子极限范围内计算了子带内和子带间磁振子的光谱。自旋波频谱分支的数量取决于子带的填充数量。如果填充的子带数很大,则波频率会经历电子密度和磁感应强度变化的de Haasvan Alphen和AharonovBohm类型的振荡。

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