Noncollinear Ordering of the Orbital Magnetic Moments in Magnetite

被引：16

作者：

Elnaggar, H. ^{[1
]}

Sainctavit, Ph. ^{[2
]}

Juhin, A. ^{[2
]}

Lafuerza, S. ^{[3
]}

Wilhelm, F. ^{[3
]}

Rogalev, A. ^{[3
]}

Arrio, M. -A. ^{[2
]}

Brouder, Ch. ^{[2
]}

van der Linden, M. ^{[1
,3
]}

Kakol, Z. ^{[4
]}

Sikora, M. ^{[5
]}

Haverkort, M. W. ^{[6
]}

Glatzel, P. ^{[3
]}

de Groot, F. M. F. ^{[1
]}

机构：

[1] Univ Utrecht, Debye Inst Nanomat Sci, NL-3584 CA Utrecht, Netherlands

[2] Sorbonne Univ, Inst Mineral Phys Mat & Cosmochim, MNHN, CNRS,UMR7590, F-75252 Paris 05, France

[3] European Synchrotron Radiat Facil, CS40220, F-38043 Grenoble 9, France

[4] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Mickiewicza 30, PL-30059 Krakow, Poland

[5] AGH Univ Sci & Technol, Acad Ctr Mat & Nanotechnol, Mickiewicza 30, PL-30059 Krakow, Poland

[6] Heidelberg Univ, Inst Theoret Phys, Philosophenweg 19, D-69120 Heidelberg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 123卷 / 20期

基金：

欧洲研究理事会;

关键词：

X-RAY-ABSORPTION; VERWEY TRANSITION; CIRCULAR-DICHROISM; ANGULAR-DEPENDENCE; PRE-EDGE; TEMPERATURE; SCATTERING; PHYSICS; FE3O4;

D O I：

10.1103/PhysRevLett.123.207201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnitude of the orbital magnetic moment and its role as a trigger of the Verwey transition in the prototypical Mott insulator, magnetite, remain contentious. Using 1s2p resonant inelastic x-ray scattering angle distribution (RIXS-AD), we prove the existence of noncollinear orbital magnetic ordering and infer the presence of dynamical distortion creating a polaronic precursor for the metal to insulator transition. These conclusions are based on a subtle angular shift of the RIXS-AD spectral intensity as a function of the magnetic field orientation. Theoretical simulations show that these results are only consistent with noncollinear magnetic orbital ordering. To further support these claims we perform Fe K-edge x-ray magnetic circular dichroism in order to quantify the Fe average orbital magnetic moment.

引用

页数：6

共 60 条

[21] Experimental and theoretical studies of vibrational density of states in Fe3O4 single-crystalline thin films -: art. no. 144301 [J].

Handke, B ;

Kozlowski, A ;

Parlinski, K ;

Przewoznik, J ;

Slezak, T ;

Chumakov, AI ;

Niesen, L ;

Kakol, Z ;

Korecki, J .

PHYSICAL REVIEW B, 2005, 71 (14)

[22] Bands, resonances, edge singularities and excitons in core level spectroscopy investigated within the dynamical mean-field theory [J].

Haverkort, M. W. ;

Sangiovanni, G. ;

Hansmann, P. ;

Toschi, A. ;

Lu, Y. ;

Macke, S. .

EPL, 2014, 108 (05)

[23] Multiplet ligand-field theory using Wannier orbitals [J].

Haverkort, M. W. ;

Zwierzycki, M. ;

Andersen, O. K. .

PHYSICAL REVIEW B, 2012, 85 (16)

[24] Anharmonicity due to Electron-Phonon Coupling in Magnetite [J].

Hoesch, Moritz ;

Piekarz, Przemyslaw ;

Bosak, Alexey ;

Le Tacon, Mathieu ;

Krisch, Michael ;

Kozlowski, Andrzej ;

Oles, Andrzej M. ;

Parlinski, Krzysztof .

PHYSICAL REVIEW LETTERS, 2013, 110 (20)

[25] Spin and orbital magnetic moments of Fe3O4 -: art. no. 077204 [J].

Huang, DJ ;

Chang, CF ;

Jeng, HT ;

Guo, GY ;

Lin, HJ ;

Wu, WB ;

Ku, HC ;

Fujimori, A ;

Takahashi, Y ;

Chen, CT .

PHYSICAL REVIEW LETTERS, 2004, 93 (07) :077204-1

[26] Jahn-Teller distortion driven magnetic polarons in magnetite [J].

Huang, H. Y. ;

Chen, Z. Y. ;

Wang, R. -P. ;

de Groot, F. M. F. ;

Wu, W. B. ;

Okamoto, J. ;

Chainani, A. ;

Singh, A. ;

Li, Z. -Y. ;

Zhou, J. -S. ;

Jeng, H. -T. ;

Guo, G. Y. ;

Park, Je-Geun ;

Tjeng, L. H. ;

Chen, C. T. ;

Huang, D. J. .

NATURE COMMUNICATIONS, 2017, 8

[27] Metal-insulator transitions [J].

Imada, M ;

Fujimori, A ;

Tokura, Y .

REVIEWS OF MODERN PHYSICS, 1998, 70 (04) :1039-1263

[28] Angular dependence of resonant inelastic x-ray scattering: a spherical tensor expansion [J].

Juhin, Amelie ;

Brouder, Christian ;

de Groot, Frank .

CENTRAL EUROPEAN JOURNAL OF PHYSICS, 2014, 12 (05) :323-340

[29] Orbital ordering and frustrations [J].

Khomskii, DI ;

Mostovoy, MV .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2003, 36 (35) :9197-9207

[30] Magnetism and the Verwey transition in Fe3O4 under pressure [J].

Klotz, S. ;

Steinle-Neumann, G. ;

Straessle, Th. ;

Philippe, J. ;

Hansen, Th. ;

Wenzel, M. J. .

PHYSICAL REVIEW B, 2008, 77 (01)

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