Ab initio evidence for strong correlation associated with Mott proximity in iron-based superconductors

Takahiro Misawa*, Kazuma Nakamura, Masatoshi Imada

*この研究の対応する著者

研究成果: Article査読

61 被引用数 (Scopus)

抄録

We predict that iron-based superconductors discovered near d6 configuration (5 Fe 3d orbitals filled by 6 electrons) is located on the foot of an unexpectedly large dome of correlated electron matter centered at the Mott insulator at d5 (namely, half filling). This is based on the many-variable variational Monte Carlo results for abinitio low-energy models derived by the downfolding. The d5 Mott proximity extends to subsequent emergence of incoherent metals, orbital differentiations due to the Mott physics, and Hund's rule coupling, followed by antiferromagnetic quantum criticality, in quantitative accordance with available experiments.

本文言語English
論文番号177007
ジャーナルPhysical Review Letters
108
17
DOI
出版ステータスPublished - 2012 4 27
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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