Two Types of Mott Transitions

研究成果: Article

67 引用 (Scopus)

抄録

One type of Mott transition (MTl) is characterized by diverging enhancement of the charge effective mass when one approaches a Mott insulator from the side of the paramagnetic metal. Another fundamentally different type of Mott transition (MT2) is shown to exist when a spin gap opens. The Unear coefficient of the specific heat y decreases and then vanishes at the transition point of MT2 in sharp contrast with MTl. As an example, a dimerized t-J model is shown to undergo MT2. The underlying pairing mechanism determines the character of MT2. Recent controversial experimental results on the Mott transitions in copper oxides and other strongly correlated systems are discussed from the above viewpoint.

元の言語English
ページ(範囲)1105-1108
ページ数4
ジャーナルJournal of the Physical Society of Japan
62
発行部数4
DOI
出版物ステータスPublished - 1993 1 1
外部発表Yes

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copper oxides
transition points
insulators
specific heat
augmentation
coefficients
metals

ASJC Scopus subject areas

  • Physics and Astronomy(all)

これを引用

Two Types of Mott Transitions. / Imada, Masatoshi.

:: Journal of the Physical Society of Japan, 巻 62, 番号 4, 01.01.1993, p. 1105-1108.

研究成果: Article

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