Article (Scientific journals)
Incommensurate charge order phase in Fe2OBO3 due to geometrical frustration
Angst, M.; Hermann, Raphaël; Schweika, W. et al.
2007In Physical Review Letters, 99 (25)
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Abstract :
[en] The temperature dependence of charge order in Fe2OBO3 was investigated by resistivity and differential scanning calorimetry measurements, Mossbauer spectroscopy, and synchrotron x-ray scattering, revealing an intermediate phase between room temperature and 340 K, characterized by coexisting mobile and immobile carriers, and by incommensurate superstructure modulations with temperature-dependent propagation vector (1/2, 0, tau) . The incommensurate modulations arise from specific antiphase boundaries with low energy cost due to geometrical charge frustration.
Disciplines :
Physics
Author, co-author :
Angst, M.
Hermann, Raphaël ;  Université de Liège - ULiège > Département de physique > Département de physique
Schweika, W.
Kim, J *-W
Khalifah, P.
Xiang, H. J.
Whangbo, M *-H
Kim, D *-H
Sales, B. C.
Mandrus, D.
Language :
English
Title :
Incommensurate charge order phase in Fe2OBO3 due to geometrical frustration
Publication date :
2007
Journal title :
Physical Review Letters
ISSN :
0031-9007
eISSN :
1079-7114
Publisher :
American Physical Society, Ridge, United States - New York
Volume :
99
Issue :
25
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 December 2012

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