Abstract
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.
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Turek, I., Kudrnovský, J., Drchal, V., Bruno, P.: Philos. Mag. 86, 1713 (2006)
Pajda, M., Kudrnovský, J., Turek, I., Bruno, P.: Phys. Rev. Lett. 85, 5424 (2000)
Vaz, C.A.F., Bland, J.A.C., Lauhoff, G.: Rep. Prog. Phys. 71, 056501 (2008)
Kudrnovský, J., Máca, F., Turek, I., Redinger, J.: Phys. Rev. B 80, 064405 (2009)
Kudrnovský, J., Turek, I., Drchal, V., Weinberger, P., Christensen, N.E., Bose, S.K.: Phys. Rev. B 46, 4222 (1992)
Turek, I., Drchal, V., Kudrnovský, J., Šob, M., Weinberger, P.: Electronic Structure of Disordered Alloys, Surfaces and Interfaces. Kluwer, Boston (1997)
Liechtenstein, A.I., Katsnelson, M.I., Antropov, V.P., Gubanov, V.A.: J. Magn. Magn. Mater. 67, 65 (1987)
Bruno, P., Kudrnovský, J., Drchal, V., Turek, I.: Phys. Rev. Lett. 76, 4254 (1996)
Uppsala Atomistic Spin Dynamics project. http://www.physics.uu.se/en/page/UppASD
Binder, K.: Z. Phys. B, Condens. Matter 43, 119 (1981)
Holtschneider, M., Selke, W., Leidl, R.: Phys. Rev. B 72, 064443 (2005)
Rapini, M., Dias, R.A., Costa, B.V.: Phys. Rev. B 75, 014425 (2007)
Kudrnovský, J., Drchal, V., Bruno, P.: Phys. Rev. B 77, 224422 (2008)
Bergqvist, L., Eriksson, O., Kudrnovský, J., Drchal, V., Bergman, A., Nordström, L., Turek, I.: Phys. Rev. B 72, 195210 (2005)
Ležaić, M., Mavropoulos, Ph., Blügel, S.: Appl. Phys. Lett. 90, 082504 (2007)
Acknowledgements
The authors acknowledge the support from the Czech Science Foundation under Contract No. 202/09/0775. L. B. acknowledges the support from the Swedish e-Science Research Centre (SeRC) and Swedish Research Council (VR).
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Mašín, M., Bergqvist, L., Kudrnovský, J. et al. Critical Temperatures of Random Iron–Cobalt Overlayers on the fcc-Cu(001) Substrate. J Supercond Nov Magn 26, 809–812 (2013). https://doi.org/10.1007/s10948-012-2084-1
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DOI: https://doi.org/10.1007/s10948-012-2084-1