Impurity band in SnBi4Se7: thermoelectric power and electrical resistivity measurements

2008 ◽  
Vol 92 (3) ◽  
pp. 565-570 ◽  
Author(s):  
S. A. Ahmed
Keyword(s):  
Electrical Resistivity ◽  
Thermoelectric Power ◽  
Impurity Band ◽  
Resistivity Measurements

The Enhancement of Thermoelectric Power and Scattering of Carriers in Bi2−xSnxTe3 Single Crystals

1997 ◽  
Vol 478 ◽  
Author(s):  
V.A. Kulbachinskii ◽  
H. Negishi ◽  
M. Sasaki ◽  
Y. Giman ◽  
M. Inoue
Keyword(s):  
Electrical Resistivity ◽  
Single Crystals ◽  
Thermoelectric Power ◽  
Hall Coefficient ◽  
Impurity Band ◽  
Temperature Range ◽  
Intermediate Temperature Range ◽  
Lower Valence ◽  
P Type ◽  
Activation Type

AbstractThermoelectric power, electrical resistivity, and Hall effect of p-type Bi2−xSnxTe3 (0<x<0.03) singlecrystals have been measured in the temperature range 4.2–300K. By doping of Sn atoms into the host Bi2Te3 lattice, the enhancement in the thermoelectric power is observed in the intermediate temperature range 30–150 K for x≤0,0075. The activation type behaviour of Hall coefficient and resistivity are found which corresponds to the Sn-induced impurity band located above the second lower valence band.

THERMOELECTRICITY AND ELECTRICAL RESISTIVITY OF DILUTE COPPER ALLOYS OF CHROMIUM, MANGANESE, IRON, AND COBALT AT LOW TEMPERATURES

1962 ◽  
Vol 40 (1) ◽  
pp. 98-112 ◽  
Author(s):  
A. Kjekshus ◽  
W. B. Pearson
Keyword(s):  
Electrical Resistivity ◽  
Low Temperature ◽  
Thermoelectric Power ◽  
Low Temperatures ◽  
Copper Alloys ◽  
Pure Copper ◽  
Gold Alloys ◽  
Resistivity Measurements ◽  
First Time

Low-temperature thermoelectric and electrical resistivity measurements on dilute copper alloys with Cr, Mn, Fe, or Co are reported and discussed, particularly in relation to similar measurements on gold alloys. Both thermoelectric and resistivity measurements have been made for the first time on the same alloys. This paper is a sequel to an earlier paper where the thermoelectric power of "pure" copper was analyzed.

In-situ electrical-resistivity measurements in the high-voltage electron microscope

1978 ◽  
Vol 36 (1) ◽  
pp. 68-69
Author(s):  
W. E. King
Keyword(s):  
Electrical Resistivity ◽  
Electron Microscope ◽  
High Voltage ◽  
Resistivity Measurements ◽  
Voltage Electron ◽  
High Voltage Electron Microscope ◽  
High Voltage Electron ◽  
Wide Range ◽  
Helium Gas

A side-entry type, helium-temperature specimen stage that has the capability of in-situ electrical-resistivity measurements has been designed and developed for use in the AEI-EM7 1200-kV electron microscope at Argonne National Laboratory. The electrical-resistivity measurements complement the high-voltage electron microscope (HVEM) to yield a unique opportunity to investigate defect production in metals by electron irradiation over a wide range of defect concentrations.A flow cryostat that uses helium gas as a coolant is employed to attain and maintain any specified temperature between 10 and 300 K. The helium gas coolant eliminates the vibrations that arise from boiling liquid helium and the temperature instabilities due to alternating heat-transfer mechanisms in the two-phase temperature regime (4.215 K). Figure 1 shows a schematic view of the liquid/gaseous helium transfer system. A liquid-gas mixture can be used for fast cooldown. The cold tip of the transfer tube is inserted coincident with the tilt axis of the specimen stage, and the end of the coolant flow tube is positioned without contact within the heat exchanger of the copper specimen block (Fig. 2).

Electrical Resistivity, Magnetic Susceptibility and Thermoelectric Power of PtGa2

1990 ◽  
Author(s):  
Li-Shing Hsu ◽  
Lu-Wei Zhou ◽  
F. L. Machado ◽  
W. G. Clark ◽  
R. S. Williams
Keyword(s):  
Electrical Resistivity ◽  
Magnetic Susceptibility ◽  
Thermoelectric Power

scholarly journals Electrical Resistivity Measurements and Soundings on Glaciers: Introductory Remarks

1967 ◽  
Vol 6 (47) ◽  
pp. 599-606 ◽  
Author(s):  
Hans Röthlisberger
Keyword(s):  
Electrical Resistivity ◽  
Resistivity Measurements ◽  
Resistivity Method

A brief description of the resistivity method is given, stressing the points which are of particular importance when working on glaciers. The literature is briefly reviewed.

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