Critical temperatures of random iron–cobalt overlayers on the fcc-Cu(001) substrate

0422717 - FZÚ 2014 RIV US eng J - Článek v odborném periodiku
Mašín, Martin - Bergqvist, L. - Kudrnovský, Josef - Kotrla, Miroslav - Drchal, Václav
Critical temperatures of random iron–cobalt overlayers on the fcc-Cu(001) substrate.
Journal of Superconductivity and Novel Magnetism. Roč. 26, č. 4 (2013), s. 809-812. ISSN 1557-1939. E-ISSN 1557-1947.
[International Conference on Superconductivity and Magnetism (ICSM) /3./. Istanbul, 29.04.2012-04.05.2012]
Grant CEP: GA ČR GA202/09/0775
Institucionální podpora: RVO:68378271
Klíčová slova: Curie temperature * random overlayer * Heisenberg Hamiltonian * first principles * Monte Carlo simulations
Kód oboru RIV: BE - Teoretická fyzika
Impakt faktor: 0.930, rok: 2013
http://link.springer.com/article/10.1007/s10948-012-2084-1

We have theoretically investigated thermodynamic properties of random iron–cobalt monolayer deposited on the fcc(001) face of copper. The effective twodimensional Heisenberg Hamiltonian was constructed from first principles and used to estimate the Curie temperature by the random-phase approximation as well as Monte Carlo simulations. Calculations predict a weak maximum of the Curie temperature for Fe-rich composition of the overlayer.
Trvalý link: http://hdl.handle.net/11104/0228859