Finite-temperature signatures of spin liquids in frustrated hubbard model

Takahiro Misawa, Youhei Yamaji

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Finite-temperature properties of the frustrated Hubbard model are theoretically examined by using the recently proposed thermal pure quantum state, which is an unbiased numerical method for performing finite-temperature calculations. By performing systematic calculations for the frustrated Hubbard model, we show that the geometrical frustration controls the characteristic energy scale of the metal-insulator transitions. We also find that entropy remains large even at moderately high temperatures around the region where the quantum spin liquid is expected to appear at zero temperature. We propose that this is a useful criterion for determining whether the target systems have chances of becoming the quantum spin liquid or the non-magnetic insulator at zero temperature.

Original languageEnglish
Article number023707
Journaljournal of the physical society of japan
Issue number2
Publication statusPublished - 2018
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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