Entropy spikes as a signature of Lifshitz transitions in the Dirac materials

We demonstrate theoretically that the characteristic feature of a 2D system undergoing N consequent Lifshitz topological transitions is the occurrence of spikes of entropy per particle s of a magnitude ±ln2/(J − 1/2) with 2 ≤ J ≤ N at low temperatures. We derive a general expression for s as a funct...

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Udgivet i:Sci Rep
Main Authors: Tsaran, V. Yu., Kavokin, A. V., Sharapov, S. G., Varlamov, A. A., Gusynin, V. P.
Format: Artigo
Sprog:Inglês
Udgivet: Nature Publishing Group UK 2017
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Article
Online adgang:https://ncbi.nlm.nih.gov/pmc/articles/PMC5578978/
https://ncbi.nlm.nih.gov/pubmed/28860524
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/s41598-017-10643-0
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