Variable Range Hopping (VRH) model in manganese oxides

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This is a study of data analyzing by using a theoretical model for mixed-valence manganites Ln1-xAxMnO3, which exhibit a complex transport behaviour. In the high-temperature (T>T P) paramagnetic insulating regime, the resistivity of samples obeys the T-1/4law, characteristic of variable range hopping (VRH). We address this kind of transport process as involving variablerange hopping of small polarons, and derive the resistivity expression: ρ= ρ0 exp(T0/T)1/4.

Original languageEnglish
Title of host publicationDefect and Diffusion Forum
Pages117-123
Number of pages7
Volume303-304
DOIs
Publication statusPublished - 2010

Publication series

NameDefect and Diffusion Forum
Volume303-304
ISSN (Print)10120386

Fingerprint

Manganites
Polarons
Manganese oxide
manganese oxides
electrical resistivity
polarons
valence
Temperature
manganese oxide

Keywords

  • Conductivity
  • Density of states
  • Variable Range Hopping (VRH)

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Radiation

Cite this

Abdullah, H. (2010). Variable Range Hopping (VRH) model in manganese oxides. In Defect and Diffusion Forum (Vol. 303-304, pp. 117-123). (Defect and Diffusion Forum; Vol. 303-304). https://doi.org/10.4028/www.scientific.net/DDF.303-304.117

Variable Range Hopping (VRH) model in manganese oxides. / Abdullah, Huda.

Defect and Diffusion Forum. Vol. 303-304 2010. p. 117-123 (Defect and Diffusion Forum; Vol. 303-304).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abdullah, H 2010, Variable Range Hopping (VRH) model in manganese oxides. in Defect and Diffusion Forum. vol. 303-304, Defect and Diffusion Forum, vol. 303-304, pp. 117-123. https://doi.org/10.4028/www.scientific.net/DDF.303-304.117
Abdullah H. Variable Range Hopping (VRH) model in manganese oxides. In Defect and Diffusion Forum. Vol. 303-304. 2010. p. 117-123. (Defect and Diffusion Forum). https://doi.org/10.4028/www.scientific.net/DDF.303-304.117
Abdullah, Huda. / Variable Range Hopping (VRH) model in manganese oxides. Defect and Diffusion Forum. Vol. 303-304 2010. pp. 117-123 (Defect and Diffusion Forum).
@inproceedings{9c9483d59f50443e89518a378c69ce8e,
title = "Variable Range Hopping (VRH) model in manganese oxides",
abstract = "This is a study of data analyzing by using a theoretical model for mixed-valence manganites Ln1-xAxMnO3, which exhibit a complex transport behaviour. In the high-temperature (T>T P) paramagnetic insulating regime, the resistivity of samples obeys the T-1/4law, characteristic of variable range hopping (VRH). We address this kind of transport process as involving variablerange hopping of small polarons, and derive the resistivity expression: ρ= ρ0 exp(T0/T)1/4.",
keywords = "Conductivity, Density of states, Variable Range Hopping (VRH)",
author = "Huda Abdullah",
year = "2010",
doi = "10.4028/www.scientific.net/DDF.303-304.117",
language = "English",
isbn = "3908451876",
volume = "303-304",
series = "Defect and Diffusion Forum",
pages = "117--123",
booktitle = "Defect and Diffusion Forum",

}

TY - GEN

T1 - Variable Range Hopping (VRH) model in manganese oxides

AU - Abdullah, Huda

PY - 2010

Y1 - 2010

N2 - This is a study of data analyzing by using a theoretical model for mixed-valence manganites Ln1-xAxMnO3, which exhibit a complex transport behaviour. In the high-temperature (T>T P) paramagnetic insulating regime, the resistivity of samples obeys the T-1/4law, characteristic of variable range hopping (VRH). We address this kind of transport process as involving variablerange hopping of small polarons, and derive the resistivity expression: ρ= ρ0 exp(T0/T)1/4.

AB - This is a study of data analyzing by using a theoretical model for mixed-valence manganites Ln1-xAxMnO3, which exhibit a complex transport behaviour. In the high-temperature (T>T P) paramagnetic insulating regime, the resistivity of samples obeys the T-1/4law, characteristic of variable range hopping (VRH). We address this kind of transport process as involving variablerange hopping of small polarons, and derive the resistivity expression: ρ= ρ0 exp(T0/T)1/4.

KW - Conductivity

KW - Density of states

KW - Variable Range Hopping (VRH)

UR - http://www.scopus.com/inward/record.url?scp=78149242762&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78149242762&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/DDF.303-304.117

DO - 10.4028/www.scientific.net/DDF.303-304.117

M3 - Conference contribution

AN - SCOPUS:78149242762

SN - 3908451876

SN - 9783908451877

VL - 303-304

T3 - Defect and Diffusion Forum

SP - 117

EP - 123

BT - Defect and Diffusion Forum

ER -