Electronic structure of the double-perovskite Ba2FeMoO6 using photoemission spectroscopy -: art. no. 024429

被引：40

作者：

Kang, JS ^{[1
]}

Han, H

Lee, BW

Olson, CG

Han, SW

Kim, KH

Jeong, JI

Park, JH

Min, BI

机构：

[1] Catholic Univ Korea, Dept Phys, Puchon 422743, South Korea

[2] Hankuk Univ Foreign Studies, Dept Phys, Yongin 449791, Kyungki, South Korea

[3] Iowa State Univ, Ames Lab, Ames, IA 50011 USA

[4] Gyeongsang Natl Univ, Dept Phys, Chinju 660701, South Korea

[5] Res Inst Ind Sci & Technol, Pohang 790600, South Korea

[6] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.64.024429

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic structure of Ba2FeMoO6 (BFMO) has been investigated by using photoemission spectroscopy (PES). By varying hv across the Mo 4d Cooper minimum, it is found that the states close to the Fermi level E-F are predominantly of the Mo t(2g) down arrow and Fe t(2g) down arrow character. The measured PES spectrum is compared to the calculated electronic structure obtained in the local spin-density approximation (LSDA) and LSDA+ U methods. The LSDA+ U calculation yields better agreement with experiment in the peak positions than does the LSDA calculation. The present study supports the double exchange mechanism for the half-metallic ferrimagnetism in BFMO.

引用

页码：244291 / 244296

页数：6

共 33 条

[1] First-principles calculations of the electronic structure and spectra of strongly correlated systems: The LDA+U method [J].

Anisimov, VI ;

Aryasetiawan, F ;

Lichtenstein, AI .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (04) :767-808

[2] PHOTOIONIZATION-CROSS-SECTION STUDIES OF ATOMIC AND FINAL-STATE EFFECTS ON PB-5D-CORE LEVELS USING SYNCHROTRON RADIATION [J].

BANCROFT, GM ;

GUDAT, W ;

EASTMAN, DE .

PHYSICAL REVIEW B, 1978, 17 (12) :4499-4504

[3] Magnetic properties of the double perovskites A2FeMoO6;: A = Ca, Sr, Ba [J].

Borges, RP ;

Thomas, RM ;

Cullinan, C ;

Coey, JMD ;

Suryanarayanan, R ;

Ben-Dor, L ;

Pinsard-Gaudart, L ;

Revcolevschi, A .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1999, 11 (40) :L445-L450

[4] Temperature dependence of the electronic structure of the charge-ordering manganite Pr0.5Sr0.5MnO3 [J].

Chainani, A ;

Kumigashira, H ;

Takahashi, T ;

Tomioka, Y ;

Kuwahara, H ;

Tokura, Y .

PHYSICAL REVIEW B, 1997, 56 (24) :R15513-R15516

[5]

CHATTOPADHYAY A, CONDMAT0006208

[6] Structural phase transition and the electronic and magnetic properties of Sr2FeMoO6 [J].

Chmaissem, O ;

Kruk, R ;

Dabrowski, B ;

Brown, DE ;

Xiong, X ;

Kolesnik, S ;

Jorgensen, JD ;

Kimball, CW .

PHYSICAL REVIEW B, 2000, 62 (21) :14197-14206

[7] PHOTOIONIZATION FROM OUTER ATOMIC SUBSHELLS - MODEL STUDY [J].

COOPER, JW .

PHYSICAL REVIEW, 1962, 128 (02) :681-&

[8] PHOTOEMISSION FROM TRANSITION-METALS AND THEIR COMPOUNDS [J].

DAVIS, LC .

JOURNAL OF APPLIED PHYSICS, 1986, 59 (06) :R25-R63

[9] κ-dependent electronic structure, a large "ghost" Fermi surface, and a pseudogap in a layered magnetoresistive oxide [J].

Dessau, DS ;

Saitoh, T ;

Park, CH ;

Shen, ZX ;

Villella, P ;

Hamada, N ;

Moritomo, Y ;

Tokura, Y .

PHYSICAL REVIEW LETTERS, 1998, 81 (01) :192-195

[10] RELATIONSHIP BETWEEN MAGNETIC CURIE POINTS AND CELL SIZES OF SOLID SOLUTIONS WITH ORDERED PEROVSKITE STRUCTURE [J].

GALASSO, FS ;

DOUGLAS, FC ;

KASPER, RJ .

JOURNAL OF CHEMICAL PHYSICS, 1966, 44 (04) :1672-&

← 1 2 3 4 →