This title appears in the Scientific Report :
2012
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevLett.108.187601 in citations.
Please use the identifier: http://hdl.handle.net/2128/7471 in citations.
Charge Order in LuFe2O4: An Unlikely Route to Ferroelectricity
Charge Order in LuFe2O4: An Unlikely Route to Ferroelectricity
We present the refinement of the crystal structure of charge-ordered LuFe2O4, based on single-crystal x-ray diffraction data. The arrangement of the different Fe-valence states, determined with bond-valence-sum analysis, corresponds to a stacking of charged Fe bilayers, in contrast with the polar bi...
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Personal Name(s): | de Groot, J. |
---|---|
Müller, T. / Rosenberg, R. A. / Keavney, D. J. / Islam, Z. / Kim, J.-W. / Angst, M. | |
Contributing Institute: |
Streumethoden; PGI-4 Streumethoden; JCNS-2 JARA-FIT; JARA-FIT |
Published in: | Physical review letters, 108 (2012) S. 187601 |
Imprint: |
College Park, Md.
APS
2012
|
Physical Description: |
187601 |
DOI: |
10.1103/PhysRevLett.108.187601 |
Document Type: |
Journal Article |
Research Program: |
In-house Research with PNI Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Physical Review Letters
108 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/7471 in citations.
We present the refinement of the crystal structure of charge-ordered LuFe2O4, based on single-crystal x-ray diffraction data. The arrangement of the different Fe-valence states, determined with bond-valence-sum analysis, corresponds to a stacking of charged Fe bilayers, in contrast with the polar bilayers previously suggested. This arrangement is supported by an analysis of x-ray magnetic circular dichroism spectra, which also evidences a strong charge-spin coupling. The nonpolar bilayers are inconsistent with charge order based ferroelectricity. |