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arXiv · cond-mat/9605076

Orbital Magnetism of 2D Chaotic Lattices

A. I. Nesvizhskii·A. Yu. Zyuzin
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Abstract

We study the orbital magnetism of 2D lattices with chaotic motion of electrons withing a primitive cell. Using the temperature diagrammatic technique we evaluate the averaged value and rms fluctuation of magnetic response in the diffusive regime withing the model of non-interacting electrons. The fluctuations of magnetic susceptibility turn out to be large and at low temperature can be of the order of $χ_{L} (k_{F}l)^{3/2}$, where $k_{F}$ is the Fermi wavevector, $l$ is the mean free path, and $χ_{L}$ is the Landau susceptibility. In the certain region of magnetic fields the paramagnetic contribution to the averaged response is field independent and larger than the absolute value of Landau response.

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A. I. Nesvizhskii, A. Yu. Zyuzin. 1996-05-12. Orbital Magnetism of 2D Chaotic Lattices. https://doi.org/10.1134/1.567121

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