Metastable Magnetic Structures in the Blume-Capel Model
K. Kułakowskia, M. Antoniuka, A. Del Moralb and P. Gawrońskia
a Faculty of Physics and Nuclear Techniques, University of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Cracow, Poland
b Laboratorio de Magnetismo de Solidos, Departamento de Fisica de Materia Condensada, Universidad de Zaragoza, 50009 Zaragoza, Spain
Full Text PDF
We discuss a first-order phase transition from non-magnetic to magnetic phase at T=0. New results are presented on a spontaneously formed magnetic phase and its energy in the C15 atomic structure, in the presence of the antiferromagnetic interaction. A dynamic phase diagram is constructed for the phase transition. The results are discussed in the context of the pressure-driven phase transition, which was observed experimentally in YMn2.
DOI: 10.12693/APhysPolA.97.893
PACS numbers: 05.70.Fh, 75.10.Hk, 75.30.Kz