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arXiv · 1507.01499

Localized magnetic moments in a Dirac semimetal as a spin model with long--range interactions

Eugene Kogan·Moshe Kaveh
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Abstract

We connect between the problem of thermodynamics of localized magnetic moments in a Dirac semimetal, the interaction with relativistic electrons leading to the effective ferromagnetic exchange between the moments, and the existing theories dealing with long--range exchange interaction. We point out that the results of high--temperature expansion for the free energy of a dilute ensemble of magnetic impurities in the semimetal performed by V. Cheianov et al. (Phys. Rev. B {\bf 86}, 054424 (2012)) give an indication to the existence of a new disordered fixed point in such model.

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Eugene Kogan, Moshe Kaveh. 2015-07-30. Localized magnetic moments in a Dirac semimetal as a spin model with long--range interactions. https://doi.org/10.1002/pssb.201552457

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