Calculated cleavage behavior and surface states of LaOFeAs

被引：23

作者：

Eschrig, Helmut ^{[1
]}

Lankau, Alexander ^{[1
]}

Koepernik, Klaus ^{[1
]}

机构：

[1] IFW Dresden, D-01171 Dresden, Germany

来源：

PHYSICAL REVIEW B | 2010年 / 81卷 / 15期

关键词：

ELECTRONIC-STRUCTURE;

D O I：

10.1103/PhysRevB.81.155447

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The layered structure of the iron-based superconductors gives rise to a more or less pronounced two dimensionality of their electronic structure, most pronounced in LaOFeAs. Consequences are distinct surface states to be expected to influence any surface sensitive experimental probe. In this work a detailed density-functional analysis of the cleavage behavior and the surface electronic structure of LaOFeAs is presented. The surface states are obtained to form two-dimensional bands with their own Fermi surfaces markedly different from the bulk electronic structure.

引用

页数：9

共 14 条

[1] Coulomb repulsion and correlation strength in LaFeAsO from density functional and dynamical mean-field theories [J].

Anisimov, V. I. ;

Korotin, Dm M. ;

Korotin, M. A. ;

Kozhevnikov, A. V. ;

Kunes, J. ;

Shorikov, A. O. ;

Skornyakov, S. L. ;

Streltsov, S. V. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (07)

[2] Tight-binding models for the iron-based superconductors [J].

Eschrig, Helmut ;

Koepernik, Klaus .

PHYSICAL REVIEW B, 2009, 80 (10)

[3] A PSEUDOPOTENTIAL TOTAL ENERGY STUDY OF IMPURITY-PROMOTED INTERGRANULAR EMBRITTLEMENT [J].

GOODWIN, L ;

NEEDS, RJ ;

HEINE, V .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (02) :351-365

[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] INTRINSIC JOSEPHSON EFFECTS IN BI2SR2CACU2O8 SINGLE-CRYSTALS [J].

KLEINER, R ;

STEINMEYER, F ;

KUNKEL, G ;

MULLER, P .

PHYSICAL REVIEW LETTERS, 1992, 68 (15) :2394-2397

[6] Full-potential nonorthogonal local-orbital minimum-basis band-structure scheme [J].

Koepernik, K ;

Eschrig, H .

PHYSICAL REVIEW B, 1999, 59 (03) :1743-1757

[7] Electronic properties of iron arsenic high temperature superconductors revealed by angle resolved photoemission spectroscopy (ARPES) [J].

Liu, Chang ;

Kondo, Takeshi ;

Palczewski, A. D. ;

Samolyuk, G. D. ;

Lee, Y. ;

Tillman, M. E. ;

Ni, Ni ;

Mun, E. D. ;

Gordon, R. ;

Santander-Syro, A. F. ;

Bud'ko, S. L. ;

McChesney, J. L. ;

Rotenberg, E. ;

Fedorov, A. V. ;

Valla, T. ;

Copie, O. ;

Tanatar, M. A. ;

Martin, C. ;

Harmon, B. N. ;

Canfield, P. C. ;

Prozorov, R. ;

Schmalian, J. ;

Kaminski, A. .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2009, 469 (9-12) :491-497

[8] ARPES studies of the electronic structure of LaOFe(P, As) [J].

Lu, D. H. ;

Yi, M. ;

Mo, S. -K. ;

Analytis, J. G. ;

Chu, J. -H. ;

Erickson, A. S. ;

Singh, D. J. ;

Hussain, Z. ;

Geballe, T. H. ;

Fisher, I. R. ;

Shen, Z. -X. .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2009, 469 (9-12) :452-458

[9]

Muller P., COMMUNICATION

[10] Crystallographic phase transition and high-Tc superconductivity in LaFeAsO:F [J].

Nomura, T. ;

Kim, S. W. ;

Kamihara, Y. ;

Hirano, M. ;

Sushko, P. V. ;

Kato, K. ;

Takata, M. ;

Shluger, A. L. ;

Hosono, H. .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2008, 21 (12)

← 1 2 →