A temperature-dependent pre-exponential factor in Efros-Shklovskii variable range hopping conduction in p-type CuInTe2

C. Quiroga; R. Oentrich; I. Bonalde; E. Medina D.; S. M. Wasim; G. Marín

doi:10.1016/S1386-9477(02)01023-8

A temperature-dependent pre-exponential factor in Efros-Shklovskii variable range hopping conduction in p-type CuInTe₂

C. Quiroga
, R. Oentrich
, I. Bonalde^*
, E. Medina D.
, S. M. Wasim
, G. Marín

^*Corresponding author for this work

Instituto Venezolano de Investigaciones Científicas
Universidad de los Andes Mérida

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

We report on the temperature dependence of the electrical resistivity down to 0.4 K in a single crystal sample of CuInTe₂ with a hole concentration at room temperature of 2.32 × 10¹⁸ cm^-3. Mott type variable range hopping (VRH) conduction is observed in the temperature range from 90 to 53 K. A crossover to Efros-Shklovskii (ES) type VRH conduction with a temperature-dependent pre-exponential factor, i.e. ρ = ρ₀T^αexp(T₀/T)^0.5 with α = 0.18, is seen below 25 K. This is the first time that a crossover from Mott to ES VRH with a pre-exponential factor has been reported.

Original language	English
Pages (from-to)	292-293
Number of pages	2
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	18
Issue number	1-3
DOIs	https://doi.org/10.1016/S1386-9477(02)01023-8
State	Published - May 2003
Externally published	Yes
Event	23rd International Conference on Low Temperature Physics - Hiroshima, Japan Duration: 20 Aug 2002 → 27 Aug 2002

Keywords

Efros-Shklovskii
Mott
Pre-exponential factor
Resistivity
Variable range hopping

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10.1016/S1386-9477(02)01023-8

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title = "A temperature-dependent pre-exponential factor in Efros-Shklovskii variable range hopping conduction in p-type CuInTe2",

abstract = "We report on the temperature dependence of the electrical resistivity down to 0.4 K in a single crystal sample of CuInTe2 with a hole concentration at room temperature of 2.32 × 1018 cm-3. Mott type variable range hopping (VRH) conduction is observed in the temperature range from 90 to 53 K. A crossover to Efros-Shklovskii (ES) type VRH conduction with a temperature-dependent pre-exponential factor, i.e. ρ = ρ0Tαexp(T0/T)0.5 with α = 0.18, is seen below 25 K. This is the first time that a crossover from Mott to ES VRH with a pre-exponential factor has been reported.",

keywords = "Efros-Shklovskii, Mott, Pre-exponential factor, Resistivity, Variable range hopping",

author = "C. Quiroga and R. Oentrich and I. Bonalde and \{Medina D.\}, E. and Wasim, \{S. M.\} and G. Mar{\'i}n",

note = "Funding Information: This work was financed by CONICIT through project G-97000670.; 23rd International Conference on Low Temperature Physics ; Conference date: 20-08-2002 Through 27-08-2002",

year = "2003",

month = may,

doi = "10.1016/S1386-9477(02)01023-8",

language = "Ingl{\'e}s",

volume = "18",

pages = "292--293",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

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TY - JOUR

T1 - A temperature-dependent pre-exponential factor in Efros-Shklovskii variable range hopping conduction in p-type CuInTe2

AU - Quiroga, C.

AU - Oentrich, R.

AU - Bonalde, I.

AU - Medina D., E.

AU - Wasim, S. M.

AU - Marín, G.

N1 - Funding Information: This work was financed by CONICIT through project G-97000670.

PY - 2003/5

Y1 - 2003/5

N2 - We report on the temperature dependence of the electrical resistivity down to 0.4 K in a single crystal sample of CuInTe2 with a hole concentration at room temperature of 2.32 × 1018 cm-3. Mott type variable range hopping (VRH) conduction is observed in the temperature range from 90 to 53 K. A crossover to Efros-Shklovskii (ES) type VRH conduction with a temperature-dependent pre-exponential factor, i.e. ρ = ρ0Tαexp(T0/T)0.5 with α = 0.18, is seen below 25 K. This is the first time that a crossover from Mott to ES VRH with a pre-exponential factor has been reported.

AB - We report on the temperature dependence of the electrical resistivity down to 0.4 K in a single crystal sample of CuInTe2 with a hole concentration at room temperature of 2.32 × 1018 cm-3. Mott type variable range hopping (VRH) conduction is observed in the temperature range from 90 to 53 K. A crossover to Efros-Shklovskii (ES) type VRH conduction with a temperature-dependent pre-exponential factor, i.e. ρ = ρ0Tαexp(T0/T)0.5 with α = 0.18, is seen below 25 K. This is the first time that a crossover from Mott to ES VRH with a pre-exponential factor has been reported.

KW - Efros-Shklovskii

KW - Mott

KW - Pre-exponential factor

KW - Resistivity

KW - Variable range hopping

UR - https://www.scopus.com/pages/publications/0038518370

U2 - 10.1016/S1386-9477(02)01023-8

DO - 10.1016/S1386-9477(02)01023-8

M3 - Artículo de la conferencia

AN - SCOPUS:0038518370

SN - 1386-9477

VL - 18

SP - 292

EP - 293

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-3

T2 - 23rd International Conference on Low Temperature Physics

Y2 - 20 August 2002 through 27 August 2002

ER -

A temperature-dependent pre-exponential factor in Efros-Shklovskii variable range hopping conduction in p-type CuInTe₂

Abstract

Keywords

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