X-ray absorption spectroscopy of Mg doped Fe3O4 thin films

被引：8

作者：

Liu, Y. S.

Chen, U.

Chen, C. L.

Dong, C. L.

Lee, D. S.

Chem, G.

Chang, C. L. ^{[1
]}

机构：

[1] Tamkang Univ, Dept Phys, Tamsui 251, Taiwan

[2] Acad Sinica, Inst Phys, Taipei 115, Taiwan

[3] Natl Chung Cheng Univ, Dept Phys, Chiayi 621, Taiwan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2007年 / 442卷 / 1-2期

关键词：

transition metal oxides; thin films; electronic structure; XANES; synchrotron radiation;

D O I：

10.1016/j.jallcom.2006.10.174

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electronic structure of Mg doped Fe3O4 thin films were studied by X-ray absorption near edge structure (XANES). Measurements were performed near Mg, 0 and Fe K-edges. Mg K-edge spectra show a gradual evolution from a much broader three-feature structure into characteristic MgO spectrum as x varies from 0. 1 to 1. The O K-edge XANES spectra indicate that the Fe 3d-O 2p hybridized states decrease as Mg concentration increases. Results of Fe K-edge XANES reveal the Mg was doped preferably into B-site more. All spectra indicate the change of crystal and electronic structure from spinel to rocksalt, start at x > 0.5. (C) 2007 Elsevier B.V. All rights reserved.

引用

收藏

页码：259 / 261

页数：3

相关论文

共 20 条

[1] LONG-RANGE MAGNETIC ORDER IN FE3O4/NIO SUPERLATTICES [J].

BORCHERS, JA ;

ERWIN, RW ;

BERRY, SD ;

LIND, DM ;

ANKNER, JF ;

LOCHNER, E ;

SHAW, KA ;

HILTON, D .

PHYSICAL REVIEW B, 1995, 51 (13) :8276-8286

[2] Electronic states and structural characterization in single-crystal Fe-Ni-O alloy thin films grown by molecular beam epitaxy [J].

Chang, CL ;

Chern, G ;

Chen, CL ;

Hsieh, HH ;

Dong, CL ;

Pong, WF ;

Chao, CH ;

Chien, HC ;

Chang, SL .

SOLID STATE COMMUNICATIONS, 1999, 109 (09) :599-604

[3] X-ray absorption near edge structure studies of Fe1-xNixOy thin films [J].

Chang, CL ;

Chen, CL ;

Dong, CL ;

Chern, G ;

Lee, JF ;

Jang, LY .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2001, 114 :545-548

[4]

CHEM G, 1992, PHYS REV B, V45, P3644

[5] PERFORMANCE OF THE DRAGON SOFT-X-RAY BEAMLINE [J].

CHEN, CT ;

SETTE, F .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1989, 60 (07) :1616-1621

[6] CONCEPT AND DESIGN PROCEDURE FOR CYLINDRICAL ELEMENT MONOCHROMATORS FOR SYNCHROTRON RADIATION [J].

CHEN, CT .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1987, 256 (03) :595-604

[7] SOFT-X-RAY SPECTROSCOPY BEAMLINE 6-M HIGH-ENERGY SPHERICAL GRATING MONOCHROMATOR AT SRRC - OPTICAL DESIGN AND FIRST PERFORMANCE TESTS [J].

CHUNG, SC ;

CHEN, CI ;

TSENG, PC ;

LIN, HF ;

DANN, TE ;

SONG, YF ;

HUANG, LR ;

CHEN, CC ;

CHUANG, JM ;

TSANG, KL ;

CHANG, CN .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1995, 66 (02) :1655-1657

[8] Systematic Mn D-configuration change in the La1-xCaxMnO3 system: A Mn K-edge SAS study [J].

Croft, M ;

Sills, D ;

Greenblatt, M ;

Lee, C ;

Cheong, SW ;

Ramanujachary, KV ;

Tran, D .

PHYSICAL REVIEW B, 1997, 55 (14) :8726-8732

[9] OXYGEN 1S X-RAY-ABSORPTION EDGES OF TRANSITION-METAL OXIDES [J].

DEGROOT, FMF ;

GRIONI, M ;

FUGGLE, JC ;

GHIJSEN, J ;

SAWATZKY, GA ;

PETERSEN, H .

PHYSICAL REVIEW B, 1989, 40 (08) :5715-5723

[10] Room temperature formation of half-metallic Fe3O4 thin films for the application of spintronic devices [J].

Hong, JP ;

Lee, SB ;

Jung, YW ;

Lee, JH ;

Yoon, KS ;

Kim, KW ;

Kim, CO ;

Lee, CH ;

Jung, MH .

APPLIED PHYSICS LETTERS, 2003, 83 (08) :1590-1592