Abstract
The possibility of the study of ferromagnetic correlations caused by d-metal impurities in nonmagnetic matrices is discussed. The polarization and magnetic-nuclear interference obtained by analyzing the small-angle scattering of polarized neutrons in a CuZn(20) alloy with Ni impurity (1 at %) are reported. It has been shown that Ni is clustered in the CuZn matrix with the characteristic correlation radius in the range 100 Å < R c < 5000 Å depending on the thermal processing of the samples. The cross correlation function determining magnetic-nuclear interference is satisfactorily approximated by the exponential exp(−r/R c), where r is the distance. It has been found that the nonmagnetic matrix CuZn(20) with an almost uniform distribution of 1% Ni impurity has metamagnetic properties in the field H ≈ 0.5 T at room temperature.
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References
V. Fernandes, P. Schio, A. J. de Oliveira, et al., J. Phys.: Condens. Matter 22, 216004 (2010).
V. Fernandes, R. J. O. Mossanek, P. Schio, et al., Phys. Rev. B 80, 035202 (2009).
V. Fernandes, P. Schio, R. J. O. Mossanek, et al., Electrochem. Solid State Lett. 14(3), 9 (2011).
A. Sundaresan, R. Bhargavi, N. Rangarajan, et al., Phys. Rev. B 74, 161306(R) (2006).
B. Vodungbo, Y. Zheng, F. Vidal, et al., Appl. Phys. Lett. 90, 062510 (2007).
P. R. L. Keating, D. O. Scanlon, and G. W. Watson, J. Phys.: Condens. Matter 21, 405502 (2009).
S. V. Grigoriev, O. A. Gubin, G. P. Kopitsa, et al., Preprint No. 2028, PIYaF RAN(Petersburg Nuclear Physics Inst., Russian Academy of Sciences, 1995).
V. A. Andreev, G. A. Ganzha, E. A. Ivanov, et al., Phys. Solid State 52, 1029 (2010).
G. Gordeev, A. Okorokov, V. Runov, et al., Physica B 234–236, 837 (1997).
S. V. Maleev, Phys. Usp. 45, 569 (2002).
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Original Russian Text © V.V. Runov, D.S. Ilyn, M.K. Runova, A.K. Radzhabov, 2012, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2012, Vol. 95, No. 9, pp. 530–533.
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Runov, V.V., Ilyn, D.S., Runova, M.K. et al. Study of ferromagnetic correlations caused by impurities in nonmagnetic materials by the method of small-angle scattering of polarized neutrons. Jetp Lett. 95, 467–470 (2012). https://doi.org/10.1134/S0021364012090111
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DOI: https://doi.org/10.1134/S0021364012090111