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Critical Temperatures of Random Iron-Cobalt Overlayers on the fcc-Cu(001) Substrate
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Material Physics, MF.ORCID iD: 0000-0003-4341-5663
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2013 (English)In: Journal of Superconductivity and Novel Magnetism, ISSN 1557-1939, E-ISSN 1557-1947, Vol. 26, no 4, 809-812 p.Article in journal (Refereed) Published
Abstract [en]

We have theoretically investigated thermodynamic properties of random iron-cobalt monolayer deposited on the fcc(001) face of copper. The effective two-dimensional Heisenberg Hamiltonian was constructed from first principles and used to estimate the Curie temperature. The random-phase approximation as well as Monte Carlo approach are used and critically compared. Calculations indicate a weak maximum of the Curie temperature for Fe-rich composition of the overlayer.

Place, publisher, year, edition, pages
2013. Vol. 26, no 4, 809-812 p.
Keyword [en]
Curie temperature, Random overlayer, Heisenberg Hamiltonian, First principles, Monte Carlo simulations
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Identifiers
URN: urn:nbn:se:kth:diva-122112DOI: 10.1007/s10948-012-2084-1ISI: 000317014500015Scopus ID: 2-s2.0-84876469379OAI: oai:DiVA.org:kth-122112DiVA: diva2:621293
Conference
3rd International Conference on Superconductivity and Magnetism (ICSM), APR 29-MAY 04, 2012, Istanbul, TURKEY
Note

QC 20130514

Available from: 2013-05-14 Created: 2013-05-13 Last updated: 2017-12-06Bibliographically approved

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Bergqvist, Lars

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