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Pis'ma v Zh. Èksper. Teoret. Fiz., 2016, Volume 103, Issue 11, Pages 780–784 (Mi jetpl4953)  

This article is cited in 4 scientific papers (total in 4 papers)

CONDENSED MATTER

On the concentration dependence of wings of spectra of spin correlation functions of diluted Heisenberg paramagnets

V. E. Zobova, M. M. Kucherovb

a Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences
b Institute of Space and Information Technologies, Siberian Federal University

Abstract: Singular points of the autocorrelation function on the imaginary time axis that is averaged over the location of spins in the magnetically dilute spin lattice with isotropic spin-spin interaction at a high temperature have been studied. For the autocorrelation function in the approximation of the self-consistent fluctuating local field, nonlinear integral equations have been proposed which reflect the separation of the inhomogeneous spin systems into close spins and other spins. The coordinates of the nearest singular points have been determined in terms of the radius of convergence of the expansion in powers of time, the coefficients of which have been calculated from recurrence equations. It has been shown that the coordinates of singular points and, consequently, the wings of the autocorrelation function spectrum at strong magnetic dilution are determined by the modulation of the local field by the nearest pairs of spins leading to its logarithmic concentration dependence.

DOI: https://doi.org/10.7868/S0370274X16110059

Full text: PDF file (162 kB)
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English version:
Journal of Experimental and Theoretical Physics Letters, 2016, 103:11, 687–691

Bibliographic databases:

Received: 26.02.2016
Revised: 11.04.2016

Citation: V. E. Zobov, M. M. Kucherov, “On the concentration dependence of wings of spectra of spin correlation functions of diluted Heisenberg paramagnets”, Pis'ma v Zh. Èksper. Teoret. Fiz., 103:11 (2016), 780–784; JETP Letters, 103:11 (2016), 687–691

Citation in format AMSBIB
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\by V.~E.~Zobov, M.~M.~Kucherov
\paper On the concentration dependence of wings of spectra of spin correlation functions of diluted Heisenberg paramagnets
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2016
\vol 103
\issue 11
\pages 780--784
\mathnet{http://mi.mathnet.ru/jetpl4953}
\crossref{https://doi.org/10.7868/S0370274X16110059}
\elib{http://elibrary.ru/item.asp?id=26427018}
\transl
\jour JETP Letters
\yr 2016
\vol 103
\issue 11
\pages 687--691
\crossref{https://doi.org/10.1134/S0021364016110138}
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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. V. A. Atsarkin, F. S. Dzheparov, Z. Phys. Chemie-Int. J. Res. Phys. Chem. Chem. Phys., 231:3, SI (2017), 545–560  crossref  isi  scopus
    2. V. E. Zobov, M. M. Kucherov, J. Exp. Theor. Phys., 124:1 (2017), 151–158  crossref  isi  scopus
    3. V. E. Zobov, M. M. Kucherov, JETP Letters, 107:9 (2018), 553–557  mathnet  crossref  crossref  isi  elib  elib
    4. Zobov V.E. Kucherov M.M., J. Exp. Theor. Phys., 128:4 (2019), 641–649  crossref  isi
  •       Pis'ma v Zhurnal ksperimental'noi i Teoreticheskoi Fiziki
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