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Non‐equilibrium acoustic phonons in nanocrystalline ceramics based on C‐modification of Y 2 O 3 sesquioxide
Author(s) -
Ivanov S. N.,
Barabanenkov Yu. N.,
Taranov A. V.,
Khazanov E. N.,
Yagi H.,
Yanagitani T.,
Takaichi K.,
Lu J.,
Bisson J. F.,
Shirakava A.,
Ueda K.,
Bagayev S. N.,
Kaminskii A. A.
Publication year - 2005
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200440060
Subject(s) - sesquioxide , nanocrystalline material , materials science , ceramic , phonon , atmospheric temperature range , kinetics , grain boundary , thermodynamics , analytical chemistry (journal) , mineralogy , condensed matter physics , chemistry , composite material , nanotechnology , metallurgy , microstructure , physics , quantum mechanics , chromatography
The transport processes in highly transparent nanocrystalline laser‐host ceramics based on C‐modification of Y 2 O 3 sesquioxide were investigated by the heat‐pulse technique. The propagation kinetics of acoustic phonons was studied in the range of liquid helium temperature (1.7–3.8 K). A structural model for the grain boundary layers is suggested and their thickness is estimated. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)