Premium
Universal Behaviour in the Variable Range Hopping Regime of Copper Ternary Compounds
Author(s) -
Iqbal M.,
Galibert J.,
Wasim S.M.,
Bocaranda P.
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/(sici)1521-3951(200003)218:1<83::aid-pssb83>3.0.co;2-8
Subject(s) - variable range hopping , ternary operation , condensed matter physics , crossover , scaling , copper , thermal conduction , mott transition , range (aeronautics) , atmospheric temperature range , binary number , statistical physics , thermodynamics , mathematics , materials science , physics , computer science , hubbard model , geometry , superconductivity , arithmetic , artificial intelligence , metallurgy , composite material , programming language
Mott type variable range hopping conduction (VRH) below 50 K has been observed in several samples of CuInTe 2 . This set of data and those published earlier on CuInSe 2 and Si:B are used to check the validity over an extended range of T / T X towards high temperature of the scaling expression of the form ρ = ρ 0 exp [ Af ( T / T X )] as proposed by Aharony et al. It is confirmed that all data including that of CdSe fall on a universal curve. From the knowledge of the parameters A and T X , one can get a better estimate of the critical temperature T c in each sample, related to the crossover from Mott to Efros‐Shklovskii type conduction.