Vaporization of kitaev spin liquids

Joji Nasu, Masafumi Udagawa, Yukitoshi Motome

研究成果: Article査読

120 被引用数 (Scopus)

抄録

The quantum spin liquid is an exotic quantum state of matter in magnets. This state is a spin analog of liquid helium that does not solidify down to the lowest temperature due to strong quantum fluctuations. In conventional fluids, the liquid and gas possess the same symmetry and adiabatically connect to each other by bypassing the critical end point. We find that the situation is qualitatively different in quantum spin liquids realized in a three-dimensional Kitaev model; both gapless and gapped quantum spin liquid phases at low temperatures are always distinguished from the high-temperature paramagnet (spin gas) by a phase transition. The results challenge the common belief that the absence of thermodynamic singularity down to the lowest temperature is a symptom of a quantum spin liquid.

本文言語English
論文番号197205
ジャーナルPhysical review letters
113
19
DOI
出版ステータスPublished - 2014 11 7
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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