Charge order in LuFe2O4: Antiferroelectric ground state and coupling to magnetism

M. Angst; R. P. Hermann; A. D. Christianson; M. D. Lumsden; C. Lee; M. H. Whangbo; J. W. Kim; P. J. Ryan; S. E. Nagler; W. Tian; R. Jin; B. C. Sales; D. Mandrus

doi:10.1103/PhysRevLett.101.227601

Charge order in LuFe2O4: Antiferroelectric ground state and coupling to magnetism

M. Angst, R. P. Hermann, A. D. Christianson, M. D. Lumsden, C. Lee, M. H. Whangbo, J. W. Kim, P. J. Ryan, S. E. Nagler, W. Tian, R. Jin, B. C. Sales, D. Mandrus

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Abstract

X-ray scattering by multiferroic LuFe2O4 is reported. Below 320K, superstructure reflections indicate an incommensurate charge order with propagation close to (131332). The corresponding charge configuration, also found by electronic structure calculations as most stable, contains polar Fe/O double layers with antiferroelectric stacking. Diffuse scattering at 360K, with (13130) propagation, indicates ferroelectric short-range correlations between neighboring double layers. The temperature dependence of the incommensuration indicates that charge order and magnetism are coupled.

Original language	English
Article number	227601
Journal	Physical Review Letters
Volume	101
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.101.227601
State	Published - Nov 26 2008

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title = "Charge order in LuFe2O4: Antiferroelectric ground state and coupling to magnetism",

abstract = "X-ray scattering by multiferroic LuFe2O4 is reported. Below 320K, superstructure reflections indicate an incommensurate charge order with propagation close to (131332). The corresponding charge configuration, also found by electronic structure calculations as most stable, contains polar Fe/O double layers with antiferroelectric stacking. Diffuse scattering at 360K, with (13130) propagation, indicates ferroelectric short-range correlations between neighboring double layers. The temperature dependence of the incommensuration indicates that charge order and magnetism are coupled.",

author = "M. Angst and Hermann, {R. P.} and Christianson, {A. D.} and Lumsden, {M. D.} and C. Lee and Whangbo, {M. H.} and Kim, {J. W.} and Ryan, {P. J.} and Nagler, {S. E.} and W. Tian and R. Jin and Sales, {B. C.} and D. Mandrus",

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doi = "10.1103/PhysRevLett.101.227601",

language = "English",

volume = "101",

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T1 - Charge order in LuFe2O4

T2 - Antiferroelectric ground state and coupling to magnetism

AU - Angst, M.

AU - Hermann, R. P.

AU - Christianson, A. D.

AU - Lumsden, M. D.

AU - Lee, C.

AU - Whangbo, M. H.

AU - Kim, J. W.

AU - Ryan, P. J.

AU - Nagler, S. E.

AU - Tian, W.

AU - Jin, R.

AU - Sales, B. C.

AU - Mandrus, D.

PY - 2008/11/26

Y1 - 2008/11/26

N2 - X-ray scattering by multiferroic LuFe2O4 is reported. Below 320K, superstructure reflections indicate an incommensurate charge order with propagation close to (131332). The corresponding charge configuration, also found by electronic structure calculations as most stable, contains polar Fe/O double layers with antiferroelectric stacking. Diffuse scattering at 360K, with (13130) propagation, indicates ferroelectric short-range correlations between neighboring double layers. The temperature dependence of the incommensuration indicates that charge order and magnetism are coupled.

AB - X-ray scattering by multiferroic LuFe2O4 is reported. Below 320K, superstructure reflections indicate an incommensurate charge order with propagation close to (131332). The corresponding charge configuration, also found by electronic structure calculations as most stable, contains polar Fe/O double layers with antiferroelectric stacking. Diffuse scattering at 360K, with (13130) propagation, indicates ferroelectric short-range correlations between neighboring double layers. The temperature dependence of the incommensuration indicates that charge order and magnetism are coupled.

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DO - 10.1103/PhysRevLett.101.227601

M3 - Article

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VL - 101

JO - Physical Review Letters

JF - Physical Review Letters

IS - 22

M1 - 227601

ER -

Charge order in LuFe2O4: Antiferroelectric ground state and coupling to magnetism

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