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Title: Thermopower of RB{sub 12} dodecaborides (R = Ho, Er, Tm, Lu)

Abstract

Detailed measurements of the Seebeck coefficient S(T) in a broad range of temperatures (T = 2-300 K) have been performed for the first time for RB{sub 12} dodecaborides (R = Ho, Er, Tm, Lu) in paramagnetic (diamagnetic for LuB{sub 12}) and antiferromagnetic states. At intermediate temperatures (10-300 K), the thermopower is determined by the interaction of carriers with phonon modes, which are related to the oscillations of rare-earth atoms in the framework of atomic clusters B{sub 12}. A comparative analysis of the parameters determining photon drag the thermopower related to the phonon drag and the results of galvanomagnetic measurements shows evidence for a significant effect of spin fluctuations on the behavior of charge transport characteristics in RB{sub 12} compounds with strong electron correlations.

Authors:
;  [1]; ;  [2]; ;  [1]
  1. Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)
  2. National Academy of Sciences of Ukraine, Institute for Problems of Materials Science (Ukraine)
Publication Date:
OSTI Identifier:
21075811
Resource Type:
Journal Article
Journal Name:
Journal of Experimental and Theoretical Physics
Additional Journal Information:
Journal Volume: 105; Journal Issue: 1; Other Information: DOI: 10.1134/S1063776107070126; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7761
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANTIFERROMAGNETISM; ATOMIC CLUSTERS; CHARGE CARRIERS; CHARGE TRANSPORT; ELECTRON CORRELATION; ERBIUM BORIDES; HOLMIUM BORIDES; LUTETIUM BORIDES; OSCILLATIONS; PARAMAGNETISM; PHONONS; PHOTONS; SPIN; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; THULIUM BORIDES

Citation Formats

Ignatov, M. I., E-mail: ignatov@lt.gpi.ru, Glushkov, V V, Demishev, S V, Shitsevalova, N Yu, Levchenko, A V, Khayrullin, E I, and Sluchanko, N E. Thermopower of RB{sub 12} dodecaborides (R = Ho, Er, Tm, Lu). United States: N. p., 2007. Web. doi:10.1134/S1063776107070126.
Ignatov, M. I., E-mail: ignatov@lt.gpi.ru, Glushkov, V V, Demishev, S V, Shitsevalova, N Yu, Levchenko, A V, Khayrullin, E I, & Sluchanko, N E. Thermopower of RB{sub 12} dodecaborides (R = Ho, Er, Tm, Lu). United States. doi:10.1134/S1063776107070126.
Ignatov, M. I., E-mail: ignatov@lt.gpi.ru, Glushkov, V V, Demishev, S V, Shitsevalova, N Yu, Levchenko, A V, Khayrullin, E I, and Sluchanko, N E. Sun . "Thermopower of RB{sub 12} dodecaborides (R = Ho, Er, Tm, Lu)". United States. doi:10.1134/S1063776107070126.
@article{osti_21075811,
title = {Thermopower of RB{sub 12} dodecaborides (R = Ho, Er, Tm, Lu)},
author = {Ignatov, M. I., E-mail: ignatov@lt.gpi.ru and Glushkov, V V and Demishev, S V and Shitsevalova, N Yu and Levchenko, A V and Khayrullin, E I and Sluchanko, N E},
abstractNote = {Detailed measurements of the Seebeck coefficient S(T) in a broad range of temperatures (T = 2-300 K) have been performed for the first time for RB{sub 12} dodecaborides (R = Ho, Er, Tm, Lu) in paramagnetic (diamagnetic for LuB{sub 12}) and antiferromagnetic states. At intermediate temperatures (10-300 K), the thermopower is determined by the interaction of carriers with phonon modes, which are related to the oscillations of rare-earth atoms in the framework of atomic clusters B{sub 12}. A comparative analysis of the parameters determining photon drag the thermopower related to the phonon drag and the results of galvanomagnetic measurements shows evidence for a significant effect of spin fluctuations on the behavior of charge transport characteristics in RB{sub 12} compounds with strong electron correlations.},
doi = {10.1134/S1063776107070126},
journal = {Journal of Experimental and Theoretical Physics},
issn = {1063-7761},
number = 1,
volume = 105,
place = {United States},
year = {2007},
month = {7}
}