Variable-range hopping of small polarons in mixed-valence manganites

2000 ◽  
Vol 12 (50) ◽  
pp. 10475-10480 ◽  
Author(s):  
Young Sun ◽  
Xiaojun Xu ◽  
Yuheng Zhang
Keyword(s):  
Mixed Valence ◽  
Variable Range Hopping ◽  
Variable Range ◽  
Mixed Valence Manganites ◽  
Small Polarons

Variable Range Hopping (VRH) Model in Manganese Oxides

2010 ◽  
Vol 303-304 ◽  
pp. 117-123
Author(s):  
Abdullah Huda
Keyword(s):  
High Temperature ◽  
Theoretical Model ◽  
Transport Process ◽  
Manganese Oxides ◽  
Mixed Valence ◽  
Variable Range Hopping ◽  
Variable Range ◽  
Transport Behaviour ◽  
Mixed Valence Manganites ◽  
Small Polarons

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>TP) paramagnetic insulating regime, the resistivity of samples obeys the T-1/4 law, characteristic of variable range hopping (VRH). We address this kind of transport process as involving variable-range hopping of small polarons, and derive the resistivity expression: .

Mott variable range hopping transport in thermal evaporated vanadyl 2, 3 naphthalocyanine thin films

2021 ◽  
pp. 125029
Author(s):  
I. Dhanya ◽  
Malathy Krishnan ◽  
Reny Renji ◽  
M.K. Anu ◽  
Rachel G. Varghese ◽  
...  
Keyword(s):  
Thin Films ◽  
Variable Range Hopping ◽  
Hopping Transport ◽  
Variable Range

Temperature-dependent activation energy and variable range hopping in semi-insulating GaAs

2006 ◽  
Vol 21 (12) ◽  
pp. 1681-1685 ◽  
Author(s):  
R M Rubinger ◽  
G M Ribeiro ◽  
A G de Oliveira ◽  
H A Albuquerque ◽  
R L da Silva ◽  
...  
Keyword(s):  
Activation Energy ◽  
Variable Range Hopping ◽  
Temperature Dependent ◽  
Variable Range

Quantum interference in variable range hopping under directional constraints

1989 ◽  
Vol 40 (14) ◽  
pp. 10052-10055 ◽  
Author(s):  
F. Tremblay ◽  
M. Pepper ◽  
R. Newbury ◽  
D. Ritchie ◽  
D. C. Peacock ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Variable Range Hopping ◽  
Variable Range
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