To the mean-field theory of a two-sublattice antiferromagnet

Autor:	Zvyagin, A.A., Skorobagat’ko, G.A.
Jazyk:	angličtina
Rok vydání:	2006
Předmět:	Низкотемпеpатуpный магнетизм Condensed Matter::Strongly Correlated Electrons
Popis:	Numerical solutions of the mean-field theory of a two-sublattice antiferromagnet with a strong crystalline electric field are studied. The validity of the solutions was checked with the help of known analytical results for the special case of the lowest doublet (S - 1/2). For larger values of the lowest multiplet (S > 1/2) the temperature and magnetic field dependencies of the antiferromagnetic order parameter and the total magnetization are calculated and their features are analyzed. We predict new re-entrant phase transitions between Nеel and paramagnetic phases for S ≥ 1.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=od______1456::775de26bd797045db62ea17919a71c05 http://dspace.nbuv.gov.ua/handle/123456789/120219 Zobrazit plný text záznamu