Paper Titles
Luminescence and Morphology Control of Phosphor Materials Synthesized by Melt Synthesis Method
p.221
Electret State in Composite Polymer Materials Based on Low Density Polyethylene and Polypropylene
p.225
Removal of Ammonia Nitrogen from Domestic Wastewater Using Vertical Aerated Limestone Filter
p.232
Magnetic Condition Flat Core/Shell Nanoparticles
p.238
“Average Spin” Approximation in the Heisenberg Model
p.243
Formation of Tobermorite at Different Materials Composition of Aerated Concrete
p.247
Methylene Blue Adsorption onto NaOH Treated Leucaena leucocephala Leaf Power
p.251
Modified Vermiculites Study by Various Physicochemical Methods
p.257
Residual Stress Effects on Fatigue Crack Growth in Directionally Solidified YAG/Spinel Eutectics
p.263

“Average Spin” Approximation in the Heisenberg Model

Article Preview

Abstract:

The “average spin” method was developed in terms of Heisenberg model. The average magnetic moment’s depending average of the temperature, the number of the nearest neighbors and spin of the atom has been calculated. It’s shown that the Curie temperature decreases with the spin of the atom.

You might also be interested in these eBooks
Advanced Engineering and Technology View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 752-753)

Pages:

243-246

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.752-753.243

Citation:

Cite this paper

Online since:

April 2015

Authors:

Leonid L. Afremov, Aleksandr A. Petrov*

Keywords:

“Average Spin” Method, “Mean Field” Method, Bethe Method, Curie Temperature, Effective Field, Heisenberg Model, Magnetic Phase Transition, Oguchi Method

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] J.S. Smart, Effective field theories of magnetism, IBM W.R.C., New York, (1966) 272.

Google Scholar

[2] F. Bitter, Proc. Roy. Soc. A, 146 (1934) 629.

Google Scholar

[3] W. Bragg and E.J. Williams, The Effect of Thermal Agitation on Atomic Arrangement in Alloys, Proc. Roy. Soc. A, 145 (1934) 699-730.

Google Scholar

[4] T. Oguchi, Theory of Magnetism in CoCl2·2H2O, J. Phys. Soc. Jpn. 20 (1965) 2236-2243.

Google Scholar

[5] H.A. Bethe, Statistical Theory of Superlattices, Proc. Roy. Soc. A. 150 (1935) 552-575.

Google Scholar

[6] R.H. Fowler, Statistical mechanics, Cambridge, (1936) 462.

Google Scholar

[7] L. Afremov and I. Il`yushin, Magnetic Concentration Phase Transitions in Ultrathin Films, Adv. Mater. Res. 683 (2013) 69-72.

DOI: 10.4028/www.scientific.net/amr.683.69

Google Scholar

[8] L. Afremov, V. Belokon, Y. Kirienko and K. Nefedev, Magnetic properties of the nanodisperse magnetics, FEFU publishing, Vladivostok, (2010) 120.

Google Scholar

[9] V. Belokon and K. Nefedev, Distribution function for random interaction fields in disordered magnets: Spin and macrospin glass, J. Exp. and Theor. Phys. 93(1) (2001) 136-142.

DOI: 10.1134/1.1391530

Google Scholar