0134298 - FZU-D 20030194 RIV GB eng J - Journal Article
Gregora, Ivan - Magneron, N. - Simon, P. - Luspin, Y. - Raimboux, N. - Philippot, E.
Raman study of AlPO₄ (berlinite) at the ŕ-á transition.
Journal of Physics-Condensed Matter. Roč. 15, - (2003), s. 4487-4501. ISSN 0953-8984. E-ISSN 1361-648X
Institutional research plan: CEZ:AV0Z1010914
Keywords : berlinite * ŕ-á transition * Raman scattering
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.757, year: 2003

It is shown that the soft-mode parameters donot show appreciable discontinuites at the transition. The fact that four Raman active A₁ modes instead of three are observed in the hexagonal á phase can be understood by assuming a dynamical disorder of Al and P atoms over trigonal ŕ-phase sites.
Permanent Link: http://hdl.handle.net/11104/0032208