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

0422717 - FZÚ 2014 RIV US eng J - Journal Article
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]
R&D Projects: GA ČR GA202/09/0775
Institutional support: RVO:68378271
Keywords : Curie temperature * random overlayer * Heisenberg Hamiltonian * first principles * Monte Carlo simulations
Subject RIV: BE - Theoretical Physics
Impact factor: 0.930, year: 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.
Permanent Link: http://hdl.handle.net/11104/0228859