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Volumn 82, Issue 10, 2010, Pages

Neutron and ARPES constraints on the couplings of the multiorbital Hubbard model for the iron pnictides

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EID: 77957588041     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.82.104508     Document Type: Article
Times cited : (84)

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    • For a discussion of this relation in the manganite context see, 10.1016/S0370-1573(00)00121-6, and references therein.
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    • Other estimations of U and J have been presented in the literature. In, 10.1143/JPSJ.79.044705, a combination of the constrained random-phase approximation and the maximally localized Wannier function gives J/U∼0.14 and U∼2.8 eV;
    • Other estimations of U and J have been presented in the literature. In T. Miyake, K. Nakamura, R. Arita, and M. Imada, J. Phys. Soc. Jpn. 79, 044705 (2010) 10.1143/JPSJ.79.044705
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    • other investigations, such as those based on dynamical mean-field theory presented by, 10.1103/PhysRevB.81.054513, also report a U∼3 eV, and J/U∼0.25. While these values of J/U are at or close to the lower range of our physical regions, the value of U differs from ours by approximately a factor 3 for the three-orbital model and 2 for the five-orbital models. However, note that the approaches cited above and ours are fundamentally different. In the first case, estimations for J and U are obtained directly based on ab initio calculations while in our approach it is the comparison with experiments and the solution of the model via mean-field techniques that are employed. The reason for this discrepancy in U remains to be investigated.
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    • Note that the results of Ref. were obtained at a chemical potential μ=0, which corresponds to a slightly different electronic density n=6.05.
    • Note that the results of Ref. were obtained at a chemical potential μ = 0, which corresponds to a slightly different electronic density n = 6.05.
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* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.