Variable‐Range Hopping in Neutron‐Transmutation‐Doped Gallium Arsenide

R Rentzsch, KJ Friedland, AN Ionov… - … status solidi (b), 1986 - Wiley Online Library
First investigations are reported on the temperature dependence of the dc‐conductivity at
T== 0.05 to 300 K on neutron‐transmutation‐doped (NTD) n‐GaAs in the vicinity of the …

Negative Magnetoresistance of Neutron‐Transmutation‐Doped Gallium Arsenide at Variable‐Range Hopping

R Rentzsch, KJ Friedland, AN Ionov - physica status solidi (b), 1988 - Wiley Online Library
Investigations of anomalous magnetoresistance (mr) in neutron‐transmutation‐doped GaAs
are performed at T= 0.05 to 4.2 K in the vicinity of the metal–insulator transition (MIT) …

Low-temperature conductivity and magnetoconductivity of neutron-transmutation-doped barely metallic GaAs in the vicinity of the metal-insulator transition

KJ Friedland, AN Ionov, R Rentzsch… - Journal of Physics …, 1990 - iopscience.iop.org
Measurements of the temperature dependence of conductivity and magnetoconductivity are
presented of barely metallic n-GaAs bulk crystals doped by the neutron-transmutation …

Variable Range Hopping Conduction in Neutron‐Transmutation‐Doped 70Ge:Ga

KM Itoh - physica status solidi (b), 2000 - Wiley Online Library
Variable range hopping conduction in neutron‐transmutation‐doped, isotopically enriched
70Ge: Ga samples for the temperature range T= 20 to 250 mK has been studied in the …

Scaling analysis of the low temperature conductivity in neutron‐transmutation‐doped 70Ge:Ga

KM Itoh, M Watanabe, Y Ootuka… - Annalen der …, 1999 - Wiley Online Library
We report on the scaling analysis of low temperature electron transport properties of
nominally uncompensated neutron‐transmutation‐doped 70Ge: Ga samples in the critical …

Hopping conductivity in heavily doped strongly compensated GaAs

BG Arnaudov, DS Domanevskii… - physica status solidi …, 1979 - Wiley Online Library
The hopping conductivity in heavily doped and closely compensated LPE gallium arsenide
is investigated in the temperature range 4.2 to 250 K. It is found that the resistivity in n‐type …

Electrical properties of neutron-transmutation-doped GaAs below 450 K

MA Vesaghi - Physical Review B, 1982 - APS
Various concentrations of Ge and Se donors were introduced into GaAs crystals by means of
neutron transmutation doping. Three kinds of GaAs crystals were used: undoped, Cr-doped …

Unified treatment of temperature, concentration, and electric-field dependences of variable-range-hopping conductivity

XX Wang, CJ Martoff, E Kaczanowicz - Physical Review B, 1995 - APS
The conductivity of Ge 1− x Au x thin films was studied at temperatures in the range 0.019<
T< 4.2 K. In the linear (low-bias) regime, samples with 0< x< 0.14 showed resistivity with …

Electron correlation effects at variable-range hopping in doped GaAs, CdTe, Ge and Si

R Rentzsch, AN Ionov - Philosophical Magazine B, 2001 - Taylor & Francis
We report low-temperature electrical resistivity and magnetoresistivity measurements of
doped semiconductors below the critical concentration of the metal-insulator transition. The …

A lattice model of nearest-neighbor hopping conduction and its application to neutron-doped Ge: Ga

NA Poklonskii, SY Lopatin, AG Zabrodskii - Physics of the Solid State, 2000 - Springer
A model of hopping conduction between nearest neighbors is developed in which the
majority and compensating dopant atoms are assumed to form a unified simple cubic lattice …