Pre-factor effect in the efros-shklovskii variable range hopping regime

Miguel Rodríguez; Ismardo Bonalde; Ernesto Medina

doi:10.1063/1.2355256

Pre-factor effect in the efros-shklovskii variable range hopping regime

Miguel Rodríguez^*
, Ismardo Bonalde
, Ernesto Medina

^*Corresponding author for this work

Instituto Venezolano de Investigaciones Científicas

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

We investigate the effect of the pre-factor of the Miller-Abrahams resistors on the macroscopic transport in Anderson insulators. Using the Mott hopping optimization procedure, including corrections due to pre-factors of the wavefunction overlap, we obtain more general expressions for the temperature T dependence of the typical hopping length and the resistivity in the Efros-Shklovskii (ES) regime. In this regime the expressions lead to the standard ES law in the case of T lower than the characteristic temperature T_ES, and to a meaningful pre-exponential dominated hopping regime when T is of the order of or larger than T_ES.

Original language	English
Title of host publication	LOW TEMPERATURE PHYSICS
Subtitle of host publication	24th International Conference on Low Temperature Physics - LT24
Pages	1466-1467
Number of pages	2
DOIs	https://doi.org/10.1063/1.2355256
State	Published - 2006
Externally published	Yes
Event	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States Duration: 10 Aug 2006 → 17 Oct 2006

Publication series

Name	AIP Conference Proceedings
Volume	850
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
Country/Territory	United States
City	Orlando, FL
Period	10/08/06 → 17/10/06

Keywords

Efros-Shklovskii regime
Preexponential effects
Variable range hopping

Access to Document

10.1063/1.2355256

Cite this

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title = "Pre-factor effect in the efros-shklovskii variable range hopping regime",

abstract = "We investigate the effect of the pre-factor of the Miller-Abrahams resistors on the macroscopic transport in Anderson insulators. Using the Mott hopping optimization procedure, including corrections due to pre-factors of the wavefunction overlap, we obtain more general expressions for the temperature T dependence of the typical hopping length and the resistivity in the Efros-Shklovskii (ES) regime. In this regime the expressions lead to the standard ES law in the case of T lower than the characteristic temperature TES, and to a meaningful pre-exponential dominated hopping regime when T is of the order of or larger than TES.",

keywords = "Efros-Shklovskii regime, Preexponential effects, Variable range hopping",

author = "Miguel Rodr{\'i}guez and Ismardo Bonalde and Ernesto Medina",

year = "2006",

doi = "10.1063/1.2355256",

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

isbn = "0735403473",

series = "AIP Conference Proceedings",

pages = "1466--1467",

booktitle = "LOW TEMPERATURE PHYSICS",

note = "LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 ; Conference date: 10-08-2006 Through 17-10-2006",

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Rodríguez, M, Bonalde, I & Medina, E 2006, Pre-factor effect in the efros-shklovskii variable range hopping regime. in LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. AIP Conference Proceedings, vol. 850, pp. 1466-1467, LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24, Orlando, FL, United States, 10/08/06. https://doi.org/10.1063/1.2355256

Pre-factor effect in the efros-shklovskii variable range hopping regime. / Rodríguez, Miguel; Bonalde, Ismardo; Medina, Ernesto.
LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. 2006. p. 1466-1467 (AIP Conference Proceedings; Vol. 850).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Pre-factor effect in the efros-shklovskii variable range hopping regime

AU - Rodríguez, Miguel

AU - Bonalde, Ismardo

AU - Medina, Ernesto

PY - 2006

Y1 - 2006

N2 - We investigate the effect of the pre-factor of the Miller-Abrahams resistors on the macroscopic transport in Anderson insulators. Using the Mott hopping optimization procedure, including corrections due to pre-factors of the wavefunction overlap, we obtain more general expressions for the temperature T dependence of the typical hopping length and the resistivity in the Efros-Shklovskii (ES) regime. In this regime the expressions lead to the standard ES law in the case of T lower than the characteristic temperature TES, and to a meaningful pre-exponential dominated hopping regime when T is of the order of or larger than TES.

AB - We investigate the effect of the pre-factor of the Miller-Abrahams resistors on the macroscopic transport in Anderson insulators. Using the Mott hopping optimization procedure, including corrections due to pre-factors of the wavefunction overlap, we obtain more general expressions for the temperature T dependence of the typical hopping length and the resistivity in the Efros-Shklovskii (ES) regime. In this regime the expressions lead to the standard ES law in the case of T lower than the characteristic temperature TES, and to a meaningful pre-exponential dominated hopping regime when T is of the order of or larger than TES.

KW - Efros-Shklovskii regime

KW - Preexponential effects

KW - Variable range hopping

UR - https://www.scopus.com/pages/publications/33947534645

U2 - 10.1063/1.2355256

DO - 10.1063/1.2355256

M3 - Contribución a la conferencia

AN - SCOPUS:33947534645

SN - 0735403473

SN - 9780735403475

T3 - AIP Conference Proceedings

SP - 1466

EP - 1467

BT - LOW TEMPERATURE PHYSICS

T2 - LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24

Y2 - 10 August 2006 through 17 October 2006

ER -

Pre-factor effect in the efros-shklovskii variable range hopping regime

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Keywords

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