Structural phases of strainedLaAlO3driven by octahedral tilt instabilities
نویسندگان
چکیده
منابع مشابه
Classification of octahedral tilting phases in the perovskitelike A2BX4 structure.
The possible lower symmetries (subgroups) of the A2BX4 structure (space-group symmetry D4& ) due to rigid octahedral tiltings at phase transitions are investigated. The method for obtaining subgroups determined by reducible representations (i.e., coupled order parameters) is described. This method depends upon subgroup information for irreducible representations (i.e., single uncoupled order pa...
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We report an x-ray scattering study of octahedral tilt ordering in the man-ganite series Pr 1−x Ca x MnO 3 with x=0.4 and 0.25 and in LaMnO 3. The sensitivity to tilt ordering is achieved by tuning the incident x-ray energy to the L I , L II and L III absorption edges of Pr and La, respectively. The resulting energy-dependent profiles are characterized by a dipole-resonant peak and higher energ...
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C. Ulrich, S. Kondo, M. Reehuis, H. He, C. Bernhard, C. Niedermayer, F. Bourée, P. Bourges, M. Ohl, H. M. Rønnow, H. Takagi, and B. Keimer Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany Department of Advanced Materials Science, School of Frontier Sciences, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan Hahn-Meitner-Institut, Glie...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2010
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.82.195402