Drude-type conductivity of charged sphere colloidal crystals: Density and temperature dependence

2005 ◽  
Vol 123 (10) ◽  
pp. 104903 ◽  
Author(s):  
Martin Medebach ◽  
Raquel Chuliá Jordán ◽  
Holger Reiber ◽  
Hans-Joachim Schöpe ◽  
Ralf Biehl ◽  
...  
2010 ◽  
Vol 658 ◽  
pp. 17-20 ◽  
Author(s):  
Jae Yong Jung ◽  
Kwan Ho Park ◽  
Soon Chul Ur ◽  
Il Ho Kim

In-filled CoSb3 skutterudites (InzCo4Sb12) were prepared and the filling effects on the thermoelectric and transport properties were examined. Seebeck coefficient and Hall coefficient confirmed that all the samples showed n-type conductivity. Temperature dependence of the electrical resistivity suggested that InzCo4Sb12 is a highly degenerate semiconducting material. The thermal conductivity was considerably reduced by In filling and the lattice contribution was dominant.


2018 ◽  
Vol 60 (9) ◽  
pp. 1650
Author(s):  
О.Б. Романова ◽  
С.С. Аплеснин ◽  
А.М. Харьков ◽  
В.В. Кретинин ◽  
А.М. Живулько

AbstractThe results of kinetic study of the Mn_1 – x Gd_ x Se chalcogenide solid solutions with different substitute concentrations (0 ≤ x ≤ 0.15) in the temperature range of 80–400 K are reported. The difference between the Hall constant and thermopower signs has been found. The electron-type conductivity determined from the Hall constant and hysteresis of the I – V characteristics have been explained by the existence of nanoareas with local electric polarizations. The sharp extrema observed in the temperature dependence of thermopower are explained by splitting of a narrow 4 f subband by the crystal field.


Author(s):  
Kenneth H. Downing ◽  
Robert M. Glaeser

The structural damage of molecules irradiated by electrons is generally considered to occur in two steps. The direct result of inelastic scattering events is the disruption of covalent bonds. Following changes in bond structure, movement of the constituent atoms produces permanent distortions of the molecules. Since at least the second step should show a strong temperature dependence, it was to be expected that cooling a specimen should extend its lifetime in the electron beam. This result has been found in a large number of experiments, but the degree to which cooling the specimen enhances its resistance to radiation damage has been found to vary widely with specimen types.


Author(s):  
Sonoko Tsukahara ◽  
Tadami Taoka ◽  
Hisao Nishizawa

The high voltage Lorentz microscopy was successfully used to observe changes with temperature; of domain structures and metallurgical structures in an iron film set on the hot stage combined with a goniometer. The microscope used was the JEM-1000 EM which was operated with the objective lens current cut off to eliminate the magnetic field in the specimen position. Single crystal films with an (001) plane were prepared by the epitaxial growth of evaporated iron on a cleaved (001) plane of a rocksalt substrate. They had a uniform thickness from 1000 to 7000 Å.The figure shows the temperature dependence of magnetic domain structure with its corresponding deflection pattern and metallurgical structure observed in a 4500 Å iron film. In general, with increase of temperature, the straight domain walls decrease in their width (at 400°C), curve in an iregular shape (600°C) and then vanish (790°C). The ripple structures with cross-tie walls are observed below the Curie temperature.


2002 ◽  
Vol 12 (3) ◽  
pp. 71-74
Author(s):  
J. A. Jiménez Tejada ◽  
A. Godoy ◽  
A. Palma ◽  
P. Cartujo

1964 ◽  
Vol 25 (5) ◽  
pp. 634-641 ◽  
Author(s):  
Sz. Kraśnicki ◽  
A. Wanic ◽  
Ž. Dimitrijević ◽  
R. Maglić ◽  
V. Marković ◽  
...  

1988 ◽  
Vol 49 (7) ◽  
pp. 1119-1125 ◽  
Author(s):  
M. Jorand ◽  
E. Dubois-Violette ◽  
B. Pansu ◽  
F. Rothen

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