Abstract
The electron paramagnetic resonance (EPR) spectra of Eu2+ impurity ions in NaCl: Eu single crystals are investigated. It is found that the intensity of the EPR spectra undergoes prolonged (∼200 h) multistage variations after quenching of NaCl: Eu single crystals. The variations observed in the EPR signal intensity are explained by the aggregation of impurity-vacancy dipoles into complexes. It is revealed that the magnetoplastic effect (a change in the microhardness in a magnetic field with an induction of 6 T) in these crystals manifests itself at an intermediate stage of impurity aggregation when all individual impurity-vacancy dipoles are temporarily stabilized in the sample. This can be associated with the thermally activated transformation of the internal atomic structure in the majority of already existing complexes.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
V. I. Al’shits, E. V. Darinskaya, T. M. Perekalina, and A. A. Urusovskaya, Fiz. Tverd. Tela (Leningrad) 29, 467 (1987) [Sov. Phys. Solid State 29, 265 (1987)].
V. I. Al’shits, E. V. Darinskaya, and O. L. Kazakova, Pis’ma Zh. Éksp. Teor. Fiz. 62, 352 (1995) [JETP Lett. 62, 375 (1995)].
V. I. Al’shits, E. V. Darinskaya, and O. L. Kazakova, Zh. Éksp. Teor. Fiz. 111, 615 (1997) [JETP 84, 338 (1997)].
A. A. Urusovskaya, V. I. Al’shits, A. E. Smirnov, and N. N. Bekkauér, Pis’ma Zh. Éksp. Teor. Fiz. 65, 470 (1997) [JETP Lett. 65, 497 (1997)].
V. I. Al’shits, N. N. Bekkauér, A. E. Smirnov, and A. A. Urusovskaya, Zh. Éksp. Teor. Fiz. 115, 951 (1999) [JETP 88, 523 (1999)].
Yu. I. Golovin, R. B. Morgunov, V. E. Ivanov, and A. A. Dmitrievskii, Zh. Éksp. Teor. Fiz. 117, 1080 (2000) [JETP 90, 939 (2000)].
Yu. I. Golovin, R. B. Morgunov, and A. A. Dmitrievskii, Mater. Sci. Eng. A 288(2), 261 (2000).
Yu. I. Golovin and R. B. Morgunov, Fiz. Tverd. Tela (St. Petersburg) 37(5), 1352 (1995) [Phys. Solid State 37, 734 (1995)].
R. B. Morgunov and A. A. Baskakov, Fiz. Tverd. Tela (St. Petersburg) 43(9), 1632 (2001) [Phys. Solid State 43, 1700 (2001)].
R. B. Morgunov, A. A. Baskakov, D. V. Yakunin, and I. N. Trofimova, Fiz. Tverd. Tela (St. Petersburg) 44(9), 2525 (2002) [Phys. Solid State 44, (2002)].
G. Aguilar, E. Munoz, H. Murrieta, et al., J. Chem. Phys. 60, 4665 (1974).
M. Suszynska, P. Grau, M. Szmida, and D. NowakWozny, Mater. Sci. Eng. A 234–236, 747 (1997).
Yu. S. Boyarskaya, D. Z. Grabko, and M. S. Kats, Physics of Microindentation (Shtiintsa, Kishinev, 1986), pp. 10–12.
C. Ruiz-Mejia, U. Oseguera, H. Murrieta, and J. Rubio, J. Chem. Phys. 73, 60 (1980).
J. Rubio, J. Phys. Chem. Solids 52, 101 (1991).
E. Orozco and J. Soullard, Philos. Mag. A 50, 425 (1984).
K. M. Salikhov, Yu. N. Molin, R. Z. Sagdeev, and A. L. Buchachenko, in Spin Polarization and Magnetic Field Effects in Radical Reactions, Ed. by Yu. N. Molin (Elsevier, Amsterdam, 1984).
V. I. Al’shits, E. V. Darinskaya, and E. A. Petrzhik, Fiz. Tverd. Tela (Leningrad) 33(10), 3001 (1991) [Sov. Phys. Solid State 33, 1694 (1991)].
Author information
Authors and Affiliations
Additional information
__________
Translated from Fizika Tverdogo Tela, Vol. 45, No. 1, 2003, pp. 91–94.
Original Russian Text Copyright © 2003 by Morgunov, Baskakov.
Rights and permissions
About this article
Cite this article
Morgunov, R.B., Baskakov, A.A. A correlation between manifestations of the magnetoplastic effect and changes in the electron paramagnetic resonance spectra after quenching of NaCl: Eu single crystals. Phys. Solid State 45, 94–97 (2003). https://doi.org/10.1134/1.1537417
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1537417