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Author Auslender, M. ♦ Shames, A.I. ♦ Rozenberg, E.
Sponsorship IEEE Magnetics Society
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1965
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Magnetic resonance ♦ Frequency modulation ♦ Crystals ♦ Temperature measurement ♦ Chemicals ♦ Ceramics ♦ Magnetic anisotropy ♦ spin dynamics ♦ Critical phenomena ♦ magnetic resonance ♦ manganese compounds
Abstract Electron paramagnetic resonance measurements were used to probe spin dynamics over mid-to-far critical range for four samples of different structural forms of La<sub>0.9</sub>Ca<sub>0.1</sub>MnO<sub>3</sub>. As a result of different fabrication routes, these samples contain different imperfections which may have specific impacts on temperature dependence of the EPR linewidth. An analysis of critical spin relaxation speedup, manifested by sharp increase of the linewidth and Onsager kinetic coefficient when approaching to magnetic transition points, was carried out using two critical exponents derived from dynamic and static scaling laws. Deviations of these exponents from theoretical bounds were proposed to be hallmarks of the disorder types.
Description Author affiliation :: Dept. of Electr. & Comput. Eng., BGU of the Negev, Beer-Sheva, Israel
Author affiliation :: Dept. of Phys., BGU of the Negev, Beer-Sheva, Israel
ISSN 00189464
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2012-11-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 48
Issue Number 11
Size (in Bytes) 832.44 kB
Page Count 4
Starting Page 4570
Ending Page 4573

Source: IEEE Xplore Digital Library