Symmetry of Orbital Order in Fe3O4 Studied by Fe L2,3 Resonant X-Ray Diffraction

被引：22

作者：

Tanaka, A. ^{[1
]}

Chang, C. F. ^{[2
,3
]}

Buchholz, M. ^{[2
]}

Trabant, C. ^{[2
,4
]}

Schierle, E. ^{[4
]}

Schlappa, J. ^{[2
,4
]}

Schmitz, D. ^{[4
]}

Ott, H. ^{[2
]}

Metcalf, P. ^{[5
]}

Tjeng, L. H. ^{[2
,3
]}

Schuessler-Langeheine, C. ^{[2
,4
]}

机构：

[1] Hiroshima Univ, ADSM, Dept Quantum Matters, Higashihiroshima 7398530, Japan

[2] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany

[3] Max Planck Inst CPfS, D-01187 Dresden, Germany

[4] Helmholtz Zentrum Berlin Mat & Energie GmbH, D-12489 Berlin, Germany

[5] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 22期

关键词：

LOW-TEMPERATURE PHASE; VERWEY TRANSITION; YBA2CU3O7-DELTA FILMS; CRYSTAL SYMMETRY; MAGNETITE;

D O I：

10.1103/PhysRevLett.108.227203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We studied the symmetry of the Fe 3d wave function in magnetite below the Verwey temperature T-V with resonant soft-x-ray diffraction. Although the lattice structure of the low-temperature phase of Fe3O4 is well described by the pseudo-orthorhombic Pmca with a slight monoclinic P2/c distortion, we find that the 3d wave function does not reflect the Pmca symmetry, and its distortion toward monoclinic symmetry is by far larger than that of the lattice. The result supports a scenario in which the Verwey transition involves the ordering of t(2g) orbitals with complex-number coefficients.

引用

页数：5

共 37 条

[1] MAGNETOCRYSTALLINE ANISOTROPY OF LOW-TEMPERATURE PHASE OF MAGNETITE [J].

ABE, K ;

MIYAMOTO, Y ;

CHIKAZUMI, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1976, 41 (06) :1894-1902

[2] Full polarization analysis of resonant superlattice and forbidden x-ray reflections in magnetite [J].

Bland, S. R. ;

Detlefs, B. ;

Wilkins, S. B. ;

Beale, T. A. W. ;

Mazzoli, C. ;

Joly, Y. ;

Hatton, P. D. ;

Lorenzo, J. E. ;

Brabers, V. A. M. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (48)

[3] Structural transformation in magnetite below the Verwey transition [J].

Blasco, Javier ;

Garcia, Joaquin ;

Subias, Gloria .

PHYSICAL REVIEW B, 2011, 83 (10)

[4] Controlled modification of interfacial strain and twinning in YBa2Cu3O7-δ films on vicinal SrTiO3 (001) [J].

Brotz, J ;

Fuess, H ;

Haage, T ;

Zegenhagen, J .

PHYSICAL REVIEW B, 1998, 57 (06) :3679-3682

[5]

Brötz J, 2002, STUD HIGH T, V41, P129

[6] Orbital ordering in the manganites:: Resonant x-ray scattering predictions at the manganese LII and LIII edges [J].

Castleton, CWM ;

Altarelli, M .

PHYSICAL REVIEW B, 2000, 62 (02) :1033-1038

[7] Intrinsic and extrinsic x-ray absorption effects in soft x-ray diffraction from the superstructure in magnetite [J].

Chang, C. F. ;

Schlappa, J. ;

Buchholz, M. ;

Tanaka, A. ;

Schierle, E. ;

Schmitz, D. ;

Ott, H. ;

Sutarto, R. ;

Willers, T. ;

Metcalf, P. ;

Tjeng, L. H. ;

Schuessler-Langeheine, C. .

PHYSICAL REVIEW B, 2011, 83 (07)

[8] MULTIPLE ORDERING IN MAGNETITE [J].

CULLEN, JR ;

CALLEN, ER .

PHYSICAL REVIEW B, 1973, 7 (01) :397-402

[9] Unraveling orbital ordering in La0.5Sr1.5MnO4 -: art. no. 056403 [J].

Dhesi, SS ;

Mirone, A ;

De Nadaï, C ;

Ohresser, P ;

Bencok, P ;

Brookes, NB ;

Reutler, P ;

Revcolevschi, A ;

Tagliaferri, A ;

Toulemonde, O ;

van der Laan, G .

PHYSICAL REVIEW LETTERS, 2004, 92 (05) :4

[10] Which orbital and charge ordering in transition metal oxides can resonant X-ray diffraction detect? [J].

Di Matteo, Sergio .

14TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS14), PROCEEDINGS, 2009, 190

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