Weyl semimetal phase in solid-solution narrow-gap semiconductors

Daichi Kurebayashi, Kentaro Nomura

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

We theoretically investigate ferromagnetic ordering in magnetically doped solid-solution narrow-gap semiconductors with the strong spin-orbit interaction such as Cr-doped Bi2(SexTe1-x)3. We compute the spontaneous magnetization of impurities and itinerant electrons, and estimate the critical temperature as a function of the concentration of magnetic dopants and the strength of the spin-orbit interaction. It is found that the critical temperature is proportional to the concentration of dopants and enhanced with the strong spin-orbit interaction. It is also found that the ferromagnetic transition could make the system turn to the Weyl semimetal which possesses a pair of Weyl points separating in the momentum space.

Original languageEnglish
Article number063709
Journaljournal of the physical society of japan
Volume83
Issue number6
DOIs
Publication statusPublished - 2014 Jun 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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