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Anisotropic Factor of Electrical Conductivity in p‐Bi 2 Te 3 Crystals
Author(s) -
Nagao J.,
Ferhat M.,
Hatta E.,
Mukasa K.
Publication year - 2000
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 - 10.1002/1521-3951(200006)219:2<347::aid-pssb347>3.0.co;2-f
Subject(s) - anisotropy , electrical resistivity and conductivity , condensed matter physics , materials science , conductivity , activation energy , physics , chemistry , optics , quantum mechanics , organic chemistry
Temperature variation of electrical conductivity in two crystallographic directions ( σ ∥ and σ ⟂ ) of p‐Bi 2 Te 3 crystals has been measured. The anisotropic factor, σ ∥ / σ ⟂ , shows an exponential form involving an activation energy. This can be interpreted as an effect of defects between the layers on the electronic density of states.