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

Journal Article · Sun Jul 15 04:00:00 EDT 2007 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776107070126· OSTI ID:21075811

Glushkov, V V; Demishev, S V ^[1]; Shitsevalova, N Yu; Levchenko, A V ^[2]; Khayrullin, E I; Sluchanko, N E ^[1]

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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)

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.

• OSTI ID: 21075811
• Journal Information: Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 1 Vol. 105; ISSN JTPHES; ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

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