Second-Order Phase Transitions in Magnetic Ca3Al2(SiO4)(Oh10) and Non Magnetic Cubic ZnO
H.W. Kunert
Department of Physics, University of Pretoria, Pretoria 0002, South Africa
Full Text PDF
Possible symmetry of modes those may cause transitions in magnetic and non magnetic crystals as well as lower space subgroup symmetries of the crystals have been found. The Landau-Lifshitz theory for non magnetic crystals has been reformulated for magnetic crystals and has been applied to Ca3Al2(SiO4)(Oh10). Some experimental data confirm our results.

DOI: 10.12693/APhysPolA.127.439
PACS numbers: 75.50.Pp