期刊
PHYSICAL REVIEW LETTERS
卷 108, 期 17, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.108.177007
关键词
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资金
- MEXT HPCI
- MEXT, Japan [22104010, 22340090, 22740215, 23740261]
- Grants-in-Aid for Scientific Research [22104010, 23740261, 22740215, 22340090] Funding Source: KAKEN
We predict that iron-based superconductors discovered near d(6) 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 d(5) (namely, half filling). This is based on the many-variable variational Monte Carlo results for ab initio low-energy models derived by the downfolding. The d(5) 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.
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