Low-temperature transport anisotropy and many-body effects in SmB6

N. E. Sluchanko, V. V. Glushkov, S. V. Demishev, A. A. Pronin, A. A. Volkov, M. V. Kondrin, A. K. Savchenko, and S. Kunii
Phys. Rev. B 64, 153103 – Published 18 September 2001
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Abstract

The study of conductivity in combination with Hall and Seebeck coefficients has been carried out along different crystallographic directions in the classic mixed-valence compound SmB6 at helium and intermediate temperatures. The experiments on high-quality single crystals of samarium hexaboride have revealed a strong anisotropy of the low temperature transport parameters. The “induced anisotropy” in this cubic material may be explained in terms of exciton-polaron complexes formed at T<15K and an onset of a coherent state or condensation of these quasiparticles at T<~Tc5K.

  • Received 17 May 2001

DOI:https://doi.org/10.1103/PhysRevB.64.153103

©2001 American Physical Society

Authors & Affiliations

N. E. Sluchanko*, V. V. Glushkov, S. V. Demishev, A. A. Pronin, and A. A. Volkov

  • General Physics Institute RAS, 38 Vavilov Street, 117942 Moscow, Russia

M. V. Kondrin

  • High Pressure Physics Institute RAS, 142092, Troitsk, Moscow district, Russia

A. K. Savchenko

  • Physics Department, University of Exeter, Stocker Road, Exeter EX4 4QL, United Kingdom

S. Kunii

  • Department of Physics, Tohoku University, Sendai 980, Japan

  • *Electronic address: nes@lt.gpi.ru

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Issue

Vol. 64, Iss. 15 — 15 October 2001

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