What is minimal model of 3He adsorbed on graphite? - Importance of density fluctuations in 4/7 registered solid

Shinji Watanabe*, Masatoshi Imada

*この研究の対応する著者

研究成果: Article査読

11 被引用数 (Scopus)

抄録

We show theoretically that the second layer of 3He adsorbed on graphite and solidified at 4/7 of the first-layer density is close to the fluid-solid boundary with substantial density fluctuations on the third layer. The solid shows a translational symmetry breaking as in charge-ordered insulators of electronic systems. We construct a minimal model beyond the multiple-exchange Heisenberg model. An unexpectedly large magnetic field required for the measured saturation of magnetization is well explained by the density fluctuations. The emergence of quantum spin liquid is understood from the same mechanism as in the Hubbard model and in κ-(ET) 2Cu 2(CN) 3 near the Mott transitions.

本文言語English
論文番号113603
ジャーナルjournal of the physical society of japan
76
11
DOI
出版ステータスPublished - 2007 11
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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