|
Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2012, Volume 95, Issue 9, Pages 530–533
(Mi jetpl2548)
|
|
|
|
This article is cited in 13 scientific papers (total in 13 papers)
CONDENSED MATTER
Study of ferromagnetic correlations caused by impurities in nonmagnetic materials by the method of small-angle scattering of polarized neutrons
V. V. Runov, D. S. Ilyn, M. K. Runova, A. K. Radzhabov B. P. Konstantinov Petersburg Nuclear Physics Institute, Russian Academy of Sciences
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 $100<R_c<5000\,$Ådepending 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 $H\approx0.5\,$T at room temperature.
Received: 07.03.2012 Revised: 28.03.2012
Citation:
V. V. Runov, D. S. Ilyn, M. K. Runova, A. K. Radzhabov, “Study of ferromagnetic correlations caused by impurities in nonmagnetic materials by the method of small-angle scattering of polarized neutrons”, Pis'ma v Zh. Èksper. Teoret. Fiz., 95:9 (2012), 530–533; JETP Letters, 95:9 (2012), 467–470
Linking options:
https://www.mathnet.ru/eng/jetpl2548 https://www.mathnet.ru/eng/jetpl/v95/i9/p530
|
Statistics & downloads: |
Abstract page: | 200 | Full-text PDF : | 54 | References: | 37 | First page: | 8 |
|