Charge order, enhanced orbital moment, and absence of magnetic frustration in layered multiferroic LuFe2O4

K. Kuepper; M. Raekers; C. Taubitz; M. Prinz; C. Derks; M. Neumann; A. V. Postnikov; F. M. F. de Groot; C. Piamonteze; D. Prabhakaran; S. J. Blundell

doi:10.1103/PhysRevB.80.220409

Charge order, enhanced orbital moment, and absence of magnetic frustration in layered multiferroic LuFe2O4

K. Kuepper^*, M. Raekers, C. Taubitz, M. Prinz, C. Derks, M. Neumann, A. V. Postnikov, F. M. F. de Groot, C. Piamonteze, D. Prabhakaran, S. J. Blundell

^*Corresponding author for this work

Sub Inorganic Chemistry and Catalysis

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Electronic and magnetic properties of the charge ordered phase of LuFe2O4 are investigated by means of x-ray spectroscopic and theoretical electronic structure approaches. LuFe2O4 is a compound showing fascinating magnetoelectric coupling via charge ordering. Here, we identify the spin ground state of LuFe2O4 in the charge ordered phase to be a 2:1 ferrimagnetic configuration, ruling out a frustrated magnetic state. An enhanced orbital moment may enhance the magnetoelectric coupling. Furthermore, we determine the densities of states and the corresponding correlation potentials by means of x-ray photoelectron and emission spectroscopies, as well as electronic structure calculations.

Original language	English
Article number	220409
Pages (from-to)	220409/1-220409/4
Number of pages	4
Journal	Physical review. B, Condensed matter and materials physics
Volume	80
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.80.220409
Publication status	Published - Dec 2009

Keywords

band structure
charge-ordered states
electronic density of states
ferrimagnetic materials
ferroelectric materials
ground states
lutetium compounds
magnetic moments
magnetoelectric effects
multiferroics
X-ray emission spectra
X-ray photoelectron spectra
SINGLE-CRYSTAL
SYSTEM LUFE2O4
FERROELECTRICITY
TRANSITION
OXIDES

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Kuepper, K., Raekers, M., Taubitz, C., Prinz, M., Derks, C., Neumann, M., Postnikov, A. V., de Groot, F. M. F., Piamonteze, C., Prabhakaran, D., & Blundell, S. J. (2009). Charge order, enhanced orbital moment, and absence of magnetic frustration in layered multiferroic LuFe2O4. Physical review. B, Condensed matter and materials physics, 80(22), 220409/1-220409/4. Article 220409. https://doi.org/10.1103/PhysRevB.80.220409

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title = "Charge order, enhanced orbital moment, and absence of magnetic frustration in layered multiferroic LuFe2O4",

abstract = "Electronic and magnetic properties of the charge ordered phase of LuFe2O4 are investigated by means of x-ray spectroscopic and theoretical electronic structure approaches. LuFe2O4 is a compound showing fascinating magnetoelectric coupling via charge ordering. Here, we identify the spin ground state of LuFe2O4 in the charge ordered phase to be a 2:1 ferrimagnetic configuration, ruling out a frustrated magnetic state. An enhanced orbital moment may enhance the magnetoelectric coupling. Furthermore, we determine the densities of states and the corresponding correlation potentials by means of x-ray photoelectron and emission spectroscopies, as well as electronic structure calculations.",

keywords = "band structure, charge-ordered states, electronic density of states, ferrimagnetic materials, ferroelectric materials, ground states, lutetium compounds, magnetic moments, magnetoelectric effects, multiferroics, X-ray emission spectra, X-ray photoelectron spectra, SINGLE-CRYSTAL, SYSTEM LUFE2O4, FERROELECTRICITY, TRANSITION, OXIDES",

author = "K. Kuepper and M. Raekers and C. Taubitz and M. Prinz and C. Derks and M. Neumann and Postnikov, {A. V.} and {de Groot}, {F. M. F.} and C. Piamonteze and D. Prabhakaran and Blundell, {S. J.}",

year = "2009",

month = dec,

doi = "10.1103/PhysRevB.80.220409",

language = "English",

volume = "80",

pages = "220409/1--220409/4",

journal = "Physical review. B, Condensed matter and materials physics",

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Kuepper, K, Raekers, M, Taubitz, C, Prinz, M, Derks, C, Neumann, M, Postnikov, AV, de Groot, FMF, Piamonteze, C, Prabhakaran, D & Blundell, SJ 2009, 'Charge order, enhanced orbital moment, and absence of magnetic frustration in layered multiferroic LuFe2O4', Physical review. B, Condensed matter and materials physics, vol. 80, no. 22, 220409, pp. 220409/1-220409/4. https://doi.org/10.1103/PhysRevB.80.220409

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AU - Kuepper, K.

AU - Raekers, M.

AU - Taubitz, C.

AU - Prinz, M.

AU - Derks, C.

AU - Neumann, M.

AU - Postnikov, A. V.

AU - de Groot, F. M. F.

AU - Piamonteze, C.

AU - Prabhakaran, D.

AU - Blundell, S. J.

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AB - Electronic and magnetic properties of the charge ordered phase of LuFe2O4 are investigated by means of x-ray spectroscopic and theoretical electronic structure approaches. LuFe2O4 is a compound showing fascinating magnetoelectric coupling via charge ordering. Here, we identify the spin ground state of LuFe2O4 in the charge ordered phase to be a 2:1 ferrimagnetic configuration, ruling out a frustrated magnetic state. An enhanced orbital moment may enhance the magnetoelectric coupling. Furthermore, we determine the densities of states and the corresponding correlation potentials by means of x-ray photoelectron and emission spectroscopies, as well as electronic structure calculations.

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KW - charge-ordered states

KW - electronic density of states

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KW - ferroelectric materials

KW - ground states

KW - lutetium compounds

KW - magnetic moments

KW - magnetoelectric effects

KW - multiferroics

KW - X-ray emission spectra

KW - X-ray photoelectron spectra

KW - SINGLE-CRYSTAL

KW - SYSTEM LUFE2O4

KW - FERROELECTRICITY

KW - TRANSITION

KW - OXIDES

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M1 - 220409

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Charge order, enhanced orbital moment, and absence of magnetic frustration in layered multiferroic LuFe2O4

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Keywords

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