Resonant x-ray diffraction study of the charge ordering in magnetite

被引：45

作者：

Goff, RJ

Wright, JP

Attfield, JP

Radaelli, PG

机构：

[1] Univ Edinburgh, Ctr Sci Extreme Condit, Edinburgh EH9 3JZ, Midlothian, Scotland

[2] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[4] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2005年 / 17卷 / 48期

关键词：

D O I：

10.1088/0953-8984/17/48/015

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Powder x-ray diffraction patterns of magnetite (Fe3O4) have been recorded at 90 K, below the Verwey transition, at three wavelengths in the pre- to mid-edge region of the 7.1 keV Fe K absorption. Simultaneous fitting of these profiles has been used to refine the anomalous scattering coefficients for the octahedral B site iron atoms. The refined values give direct evidence for a significant degree (46%) of Fe2+ /Fe3+ charge ordering in magnetite, and provide new constraints on the number of possible charge ordered models.

引用

收藏

页码：7633 / 7642

页数：10

相关论文

共 41 条

[1] ORDERING AND ANTIFERROMAGNETISM IN FERRITES [J].

ANDERSON, PW .

PHYSICAL REVIEW, 1956, 102 (04) :1008-1013

[2] Charge-ordered insulating state of Fe3O4 from first-principles electronic structure calculations [J].

Anisimov, VI ;

Elfimov, IS ;

Hamada, N ;

Terakura, K .

PHYSICAL REVIEW B, 1996, 54 (07) :4387-4390

[3] DETERMINATION OF VALENCE AND CATION DISTRIBUTIONS BY RESONANT POWDER X-RAY-DIFFRACTION [J].

ATTFIELD, JP .

NATURE, 1990, 343 (6253) :46-49

[4] 57Fe Mossbauer spectroscopic examination of a single crystal of Fe3O4 [J].

Berry, FJ ;

Skinner, S ;

Thomas, MF .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1998, 10 (01) :215-220

[5] Direct evidence for itinerant magnetite above and below the Verwey transition temperature [J].

Cai, YQ ;

Nakatsuji, K ;

Ohno, S ;

Iimori, T ;

Yamada, M ;

Komori, F .

SURFACE REVIEW AND LETTERS, 2002, 9 (02) :907-912

[6] Resonant "forbidden" reflections in magnetite [J].

García, J ;

Subías, G ;

Proietti, MG ;

Renevier, H ;

Joly, Y ;

Hodeau, JL ;

Blasco, J ;

Sánchez, MC ;

Bérar, JF .

PHYSICAL REVIEW LETTERS, 2000, 85 (03) :578-581

[7] The Verwey transition -: a new perspective [J].

García, J ;

Subias, G .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (07) :R145-R178

[8] Absence of charge ordering below the Verwey transition temperature in magnetite -: art. no. 054110 [J].

García, J ;

Subías, G ;

Proietti, MG ;

Blasco, J ;

Renevier, H ;

Hodeau, JL ;

Joly, Y .

PHYSICAL REVIEW B, 2001, 63 (05)

[9] NEUTRON DIFFRACTION INVESTIGATION OF THE 119-DEGREES-K TRANSITION INMAGNETITE [J].

HAMILTON, WC .

PHYSICAL REVIEW, 1958, 110 (05) :1050-1057

[10] STRUCTURE OF MAGNETITE (FE3O4) BELOW THE VERWEY TRANSITION-TEMPERATURE [J].

IIZUMI, M ;

KOETZLE, TF ;

SHIRANE, G ;

CHIKAZUMI, S ;

MATSUI, M ;

TODO, S .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1982, 38 (AUG) :2121-2133

← 1 2 3 4 5 →