| Literature DB >> 18233535 |
M Angst1, R P Hermann, W Schweika, J-W Kim, P Khalifah, H J Xiang, M-H Whangbo, D-H Kim, B C Sales, D Mandrus.
Abstract
The temperature dependence of charge order in Fe2OBO3 was investigated by resistivity and differential scanning calorimetry measurements, Mössbauer 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.Entities:
Year: 2007 PMID： 18233535 DOI： 10.1103/PhysRevLett.99.256402
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161