Correlated electronic structure of LaO1-xFxFeAs

被引：458

作者：

Haule, K. ^{[1
]}

Shim, J. H. ^{[1
]}

Kotliar, G. ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Phys, Piscataway, NJ 08854 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.100.226402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We compute the electronic structure, momentum resolved spectral function and optical conductivity of the new superconductor LaO1-xFxFeAs within the combination of the density functional theory and dynamical mean field theory. We find that the compound in the normal state is a strongly correlated metal and the parent compound is a bad metal at the verge of the metal insulator transition. We argue that the superconductivity is not phonon mediated.

引用

页数：4

共 14 条

[1]

Blaha P., 2001, WIEN2K

[2] Dynamical mean-field theory of strongly correlated fermion systems and the limit of infinite dimensions [J].

Georges, A ;

Kotliar, G ;

Krauth, W ;

Rozenberg, MJ .

REVIEWS OF MODERN PHYSICS, 1996, 68 (01) :13-125

[3] Quantum Monte Carlo impurity solver for cluster dynamical mean-field theory and electronic structure calculations with adjustable cluster base [J].

Haule, Kristjan .

PHYSICAL REVIEW B, 2007, 75 (15)

[4] Iron-based layered superconductor La[O1-xFx]FeAs (x=0.05-0.12) with Tc=26 K [J].

Kamihara, Yoichi ;

Watanabe, Takumi ;

Hirano, Masahiro ;

Hosono, Hideo .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (11) :3296-+

[5] Iron-based layered superconductor: LaOFeP [J].

Kamihara, Yoichi ;

Hiramatsu, Hidenori ;

Hirano, Masahiro ;

Kawamura, Ryuto ;

Yanagi, Hiroshi ;

Kamiya, Toshio ;

Hosono, Hideo .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (31) :10012-10013

[6] Electronic structure calculations with dynamical mean-field theory [J].

Kotliar, G. ;

Savrasov, S. Y. ;

Haule, K. ;

Oudovenko, V. S. ;

Parcollet, O. ;

Marianetti, C. A. .

REVIEWS OF MODERN PHYSICS, 2006, 78 (03) :865-951

[7] Sensitivity of the Mott transition to noncubic splitting of the orbital degeneracy:: Application to NH3K3C60 -: art. no. 115107 [J].

Manini, N ;

Santoro, GE ;

Dal Corso, A ;

Tosatti, E .

PHYSICAL REVIEW B, 2002, 66 (11) :1151071-1151077

[8] Screened Coulomb interaction in the maximally localized Wannier basis [J].

Miyake, Takashi ;

Aryasetiawan, F. .

PHYSICAL REVIEW B, 2008, 77 (08)

[9]

Perdew JP, 1997, PHYS REV LETT, V78, P1396, DOI 10.1103/PhysRevLett.77.3865

[10]

POTERYAEV AI, ARXIVCONDMAT08014356

← 1 2 →