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Pis'ma v Zh. Èksper. Teoret. Fiz., 2014, Volume 99, Issue 2, Pages 87–93 (Mi jetpl3640)  

This article is cited in 8 scientific papers (total in 8 papers)

CONDENSED MATTER

Determination of the positions of impurity centers in a dislocation core in a NaCl crystal from magnetoplasticity spectra

V. I. Al'shits, M. V. Koldaeva, E. A. Petrzhik, A. Yu. Belov, E. V. Darinskaya

Institute of Cristallography Russian Academy of Sciences, Moscow

Abstract: The spectra of the mean free paths $l(\nu)$ of edge dislocations have been studied in NaCl crystals exposed in the electron paramagnetic resonance scheme to the crossed magnetic fields: the Earth's field ($50$ $\mu$T) and the pump field ($2.5$ $\mu$T, $5$$440$ kHz). The spectra have been measured for a series of angles $\theta=0^\circ{-}5^{\circ}$ of rotation of the sample around its edge [100] with respect to the Earths field. The fine structure of the spectra contains a series of peaks whose resonance frequencies are described by the empirical expression $\nu^{\pm}_{i} = A\sin(\theta \pm \Delta\theta_{i}) \approx A(\theta \pm \Delta\theta_{i})$. The parameters $\Delta \theta_i$ are independent of the angle $\theta$ within the experimental errors. Within the model of “frozen” magnetic moments associated with impurity center Ca$^+$–Cl$^0$, the angles $\Delta \theta_i$ characterize the deviation of the axis of the center from the $\langle 100\rangle$ direction in the core of a dislocation. These angles can be expressed in terms of the spectra obtained: $\Delta \theta_i = (\nu^{+}_{i} - \nu^{-}_{i})/2A$. The computer simulation of the edge dislocation core provides the set of the angles $\Delta \theta_i$ close to the measured values. The spin-lattice relaxation time of the center on dislocation has been estimated from the low-frequency edge of the spectrum $l(\nu)$ as $\tau_{s-l}\sim10^{-4}$ s.

DOI: https://doi.org/10.7868/S0370274X14020052

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English version:
Journal of Experimental and Theoretical Physics Letters, 2014, 99:2, 82–88

Bibliographic databases:

Received: 18.12.2013

Citation: V. I. Al'shits, M. V. Koldaeva, E. A. Petrzhik, A. Yu. Belov, E. V. Darinskaya, “Determination of the positions of impurity centers in a dislocation core in a NaCl crystal from magnetoplasticity spectra”, Pis'ma v Zh. Èksper. Teoret. Fiz., 99:2 (2014), 87–93; JETP Letters, 99:2 (2014), 82–88

Citation in format AMSBIB
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\by V.~I.~Al'shits, M.~V.~Koldaeva, E.~A.~Petrzhik, A.~Yu.~Belov, E.~V.~Darinskaya
\paper Determination of the positions of impurity centers in a dislocation core in a NaCl crystal from magnetoplasticity spectra
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2014
\vol 99
\issue 2
\pages 87--93
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\crossref{https://doi.org/10.7868/S0370274X14020052}
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\transl
\jour JETP Letters
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\crossref{https://doi.org/10.1134/S0021364014020039}
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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. I. Alshits, E. V. Darinskaya, M. V. Koldaeva, E. A. Petrzhik, JETP Letters, 104:5 (2016), 353–364  mathnet  crossref  isi  elib
    2. Alshits V.I., Darinskaya E.V., Koldaeva M.V., Petrzhik E.A., J. Exp. Theor. Phys., 122:1 (2016), 118–130  crossref  isi  elib  scopus
    3. V. I. Alshits, E. V. Darinskaya, M. V. Koldaeva, R. K. Kotowski, E. A. Petrzhik, P. Tronczyk, Phys. Usp., 60:3 (2017), 305–318  mathnet  crossref  crossref  adsnasa  isi  elib
    4. A. Yu. Belov, Crystallogr. Rep., 62:2 (2017), 270–274  crossref  isi  scopus
    5. V. I. Alshits, M. V. Koldaeva, E. A. Petrzhik, JETP Letters, 107:10 (2018), 618–623  mathnet  crossref  crossref  isi  elib  elib
    6. O. M. Petchenko, G. O. Petchenko, S. M. Boiko, Probl. At. Sci. Technol., 2018, no. 5, 16–20  isi
    7. O. M. Petchenko, G. O. Petchenko, S. M. Boiko, Probl. At. Sci. Technol., 2018, no. 5, 24–28  isi
    8. Petchenko O.M. Petchenko G.O. Boiko S.M., Probl. At. Sci. Technol., 2019, no. 2, 39–49  isi
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