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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2005, Volume 81, Issue 11, Pages 688–692 (Mi jetpl1762)  

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

FIELDS, PARTICLES, AND NUCLEI

Study of the heavy-fermion compound CeRu2Si2 by the small-angle neutron scattering method

G. P. Kopitsaa, S. V. Grigor'eva, V. V. Runova, S. V. Maleyeva, V. M. Garamusb, A. G. Yashenkina

a B. P. Konstantinov Petersburg Nuclear Physics Institute, Russian Academy of Sciences
b GKSS Research Centre D-21502 Geesthacht, Germany
Full-text PDF (350 kB) Citations (4)
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Abstract: In order to directly observe neutron scattering by heavy fermion quasiparticles at low temperatures, a CeRu2Si2 single crystal has been studied by the small-angle neutron scattering method. In the experiment, neutron scattering is observed at T = 0.85 K for momentum transfers q ≤ 0.04 Å−1, which is treated as the orbital component of magnetic scattering by heavy fermion quasiparticles. It has been found that the application of a magnetic field H = 1 T leads to both an increase in the observed scattering and its anisotropy with respect to the field direction. Moreover, measurements in the magnetic field reveal additional scattering for q > 0.04 Å−1, which is well described by a Lorentzian and is interpreted as neutron magnetic scattering by spin-density fluctuations with a correlation radius R c ≈ 30 Å.
Received: 11.05.2005
English version:
Journal of Experimental and Theoretical Physics Letters, 2005, Volume 81, Issue 11, Pages 556–560
DOI: https://doi.org/10.1134/1.2029943
Bibliographic databases:
Document Type: Article
PACS: 61.12.Ex, 71.27.+a
Language: Russian


Citation: G. P. Kopitsa, S. V. Grigor'ev, V. V. Runov, S. V. Maleyev, V. M. Garamus, A. G. Yashenkin, “Study of the heavy-fermion compound CeRu2Si2 by the small-angle neutron scattering method”, Pis'ma v Zh. Èksper. Teoret. Fiz., 81:11 (2005), 688–692; JETP Letters, 81:11 (2005), 556–560
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  • This publication is cited in the following 4 articles:
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    Письма в Журнал экспериментальной и теоретической физики Pis'ma v Zhurnal Иksperimental'noi i Teoreticheskoi Fiziki
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