Magnetic properties of Heisenberg antiferromagnetic EuTe/PbTe superlattices
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In this paper, the magnetic transition temperatures obtained by mean-field analysis, using bulk exchange coupling values, are in close agreement with observed Tc values for SLs with 2, 3, 4 and 5 EuTe MLs.Abstract:
Bulk EuTe is a type II Heisenberg antiferromagnet (AF2) with a single magnetic phase transition temperature at 9.6 K. However, for several isolated EuTe (111) monolayers (MLs) as can be achieved in a superlattice (SL) structure, both ferrimagnetic-like and antiferromagnetic-like phase transitions can take place, depending on the SLs configuration. The temperature-dependent magnetizationM(T) of such SLs has been studied near the transition temperature (Tc) by SQUID magnetometry. The functional forms ofM(T) atT ≤ Tc can be described by mean-field theory for SLs with 3, 4 and 5 EuTe MLs per SL cell. The magnetic transition temperatures obtained by mean-field analysis, using bulk exchange coupling values, are in close agreement with observedTc values for SLs with 2, 3, 4 and 5 EuTe MLs. The qualitative behavior of the surface specific heat can be deduced fromM(T) data for SLs with three EuTe monolayers.read more
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TL;DR: An Introduction to the Physics of Vibrations and Waves By Prof. Norman Feather as discussed by the authors, published by Thomas Nelson and Sons, Ltd. (Edinburgh: At the University Press, 1961).
References
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Book
Introduction to solid state physics
TL;DR: In this paper, the Hartree-Fock Approximation of many-body techniques and the Electron Gas Polarons and Electron-phonon Interaction are discussed.
Book
Exactly solved models in statistical mechanics
TL;DR: In this article, exactly solved models of statistical mechanics are discussed. But they do not consider exactly solvable models in statistical mechanics, which is a special issue in the statistical mechanics of the classical two-dimensional faculty of science.
Journal ArticleDOI
Introduction to Solid State Physics
TL;DR: Kind's new edition is to be welcomed as mentioned in this paper, with a revised format and attractive illustrations, and with the inclusion of much new material this book has become one of the best sources for undergraduate teaching, likely to give the student a wish to dig deeper into the solid state.
Journal Article
Spectral Analysis and Time Series
TL;DR: In this article, the authors introduce the concept of Stationary Random Processes and Spectral Analysis in the Time Domain and Frequency Domain, and present an analysis of Processes with Mixed Spectra.
Handbook on the physics and chemistry of rare earths. Volume 9
K.A. Gschneider,L. Eyring +1 more
TL;DR: In this article, it has been said that rare earth elements are destined to play an even greater role in our ''high-tech'' society in the future than they have in the past, based upon the trend of increasing applications resulting from the electronic structures of these materials that lead to their unusual optical, magnetic, electrical and chemical properties so adaptable to the demands now being placed on materials.
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