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Common characteristics of displacive and relaxor ferroelectrics
- 1.0342160 - FZÚ 2011 RIV US eng J - Journal Article
Bishop, A. R. - Bussmann-Holder, A. - Kamba, Stanislav - Maglione, M.
Common characteristics of displacive and relaxor ferroelectrics.
Physical Review. B. Roč. 81, č. 6 (2010), 064106/1-064106/9. ISSN 1098-0121
R&D Projects: GA ČR(CZ) GA202/09/0682
Institutional research plan: CEZ:AV0Z10100520
Keywords : relaxor ferroelectrics * soft modes * breather * displacive phase transition
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 3.772, year: 2010
The long-standing classification scheme of ferroelectrics into either relaxor or displacive ones is too restrictive since a smooth crossover between them exists which even admits for a coexistence of both phenomena. This crossover and coexistence is a consequence of the varying density of polar nanoregions due to different doping levels of the respective system. The formatin of polar nanoregions is attributed here to intrinsic local modes in terms of discrete breathers.
Permanent Link: http://hdl.handle.net/11104/0184972
Number of the records: 1