Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102047
Title: Kohn anomalies in momentum dependence of magnetic susceptibility of some three-dimensional systems
Authors: Stepanenko, A. A.
Volkova, D. O.
Igoshev, P. A.
Katanin, A. A.
Issue Date: 2017
Publisher: Maik Nauka-Interperiodica Publishing
Citation: Kohn anomalies in momentum dependence of magnetic susceptibility of some three-dimensional systems / A. A. Stepanenko, D. O. Volkova, P. A. Igoshev, et al. — DOI 10.1134/S1063776117110139 // Journal of Experimental and Theoretical Physics. — 2017. — Vol. 125. — Iss. 5. — P. 879-889.
Abstract: We study a question of the presence of Kohn points, yielding at low temperatures nonanalytic momentum dependence of magnetic susceptibility near its maximum, in electronic spectra of some threedimensional systems. In particular, we consider a one-band model on face-centered cubic lattice with hopping between the nearest and next-nearest neighbors, which models some aspects of the dispersion of ZrZn2, and the two-band model on body-centered cubic lattice, modeling the dispersion of chromium. For the former model, it is shown that Kohn points yielding maxima of susceptibility exist in a certain (sufficiently wide) region of electronic concentrations; the dependence of the wave vectors, corresponding to the maxima, on the chemical potential is investigated. For the two-band model, we show the existence of the lines of Kohn points, yielding maximum susceptibility, whose position agrees with the results of band structure calculations and experimental data on the wave vector of antiferromagnetism of chromium. © 2017, Pleiades Publishing, Inc.
Keywords: BINARY ALLOYS
CHROMIUM
MAGNETIC SUSCEPTIBILITY
ZINC ALLOYS
ZIRCONIUM ALLOYS
BAND STRUCTURE CALCULATION
ELECTRONIC CONCENTRATION
ELECTRONIC SPECTRUM
FACE CENTERED CUBIC LATTICE
LOW TEMPERATURES
NEAREST NEIGHBORS
ONE-BAND MODELS
THREE DIMENSIONAL SYSTEMS
DISPERSION (WAVES)
URI: http://hdl.handle.net/10995/102047
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85038418963
PURE ID: 6228065
ISSN: 10637761
DOI: 10.1134/S1063776117110139
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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