Results 81 to 90 of about 143 (136)
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Cryostats for measuring electrical, thermoelectric, galvano- and thermomagnetic properties
Cryogenics, 1969Abstract Cryostats are described for measuring electric and thermoelectric properties in the temperature range from 20 to 300 K, and also for measuring galvano- and thermomagnetic effects in the range 77 to 300 K.
N.I. Davidenko, I.K. Fakidov
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Chapter 7 Thermomagnetic effects and measurements
2001Summary The thermoelectric and thermomagnetic transport properties of solid state systems are typically used as research tools to explore electron and phonon behavior within the material and as a measure of the usefulness of the material for potential applications.
Franz Freibert +3 more
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Measurement of thermoelectric, galvanomagnetic, and thermomagnetic effects at ultrahigh pressure
SPIE Proceedings, 2003Lead chalcogenides are successfully applied at sensors of infrared radiation, thermoelectrical devices, thermogenerator, photoresistances, photodiodes, lasers, tensometers etc. Under high pressures above 2.5 - 6 GPa lead chaclogenides are known to suffer phase transitions, but up to now the thermoelectric properties of these materials at high ...
Sergey V. Ovsyannikov +1 more
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Journal of Thermal Analysis, 1983
Simultaneous measurements of variations in magnetic and dilatometric properties were successfully used to detect the phase transition occurring during the thermal treatment of iron(III) oxide microcrystals. The increase of the compacting pressure, i.e. the increase of the interparticular number, favours the irreversibleγ→α transition.
E. Karmazsin, P. Satre, P. Vergnon
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Simultaneous measurements of variations in magnetic and dilatometric properties were successfully used to detect the phase transition occurring during the thermal treatment of iron(III) oxide microcrystals. The increase of the compacting pressure, i.e. the increase of the interparticular number, favours the irreversibleγ→α transition.
E. Karmazsin, P. Satre, P. Vergnon
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SPIE Proceedings, 2003
The technique for investigation of thermoelectric, galvanomagnetic and thermomagnetic effects at ultrahigh pressure (up to 30 GPa) is presented. For micro-samples of chalcogens (Te,Se,S) and chalcogenides (n-PbTe,p-PbSe,p-PbS) the thermoelectric power, magnetoresistance and longitudinal and transverse Nernst-Ettingshausen effects have been measured ...
Sergey V. Ovsyannikov +1 more
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The technique for investigation of thermoelectric, galvanomagnetic and thermomagnetic effects at ultrahigh pressure (up to 30 GPa) is presented. For micro-samples of chalcogens (Te,Se,S) and chalcogenides (n-PbTe,p-PbSe,p-PbS) the thermoelectric power, magnetoresistance and longitudinal and transverse Nernst-Ettingshausen effects have been measured ...
Sergey V. Ovsyannikov +1 more
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Review of Scientific Instruments, 2015
Resistance thermometers are common secondary thermometers in cryogenic applications. Bulk RuO2 thermometers are used in dilution refrigerators because of their low magnetoresistances in addition to their temperature sensitivity. Thermoelectric and thermomagnetic measurements require multiple thermometers to measure temperature differences.
J, Nelson, A M, Goldman
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Resistance thermometers are common secondary thermometers in cryogenic applications. Bulk RuO2 thermometers are used in dilution refrigerators because of their low magnetoresistances in addition to their temperature sensitivity. Thermoelectric and thermomagnetic measurements require multiple thermometers to measure temperature differences.
J, Nelson, A M, Goldman
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Mössbauer study of chemical transformations in soil samples during thermomagnetic measurements
Hyperfine Interactions, 2006Mossbauer spectroscopy was used in order to identify iron oxides responsible for soil magnetism and for changes of the shape of the magnetic susceptibility curves obtained in the thermomagnetic measurements. The chemical composition of the soil samples was transformed due to the thermal treatment through dehydration/dehydroxylation and than oxidation ...
B. Kopcewicz +3 more
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Thermomagnetic study of Finemet type nanocrystalline alloy by in situ hysteresis measurements
Journal of Magnetism and Magnetic Materials, 1996Abstract The origin of the excellent magnetic properties of nanocrystallized Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 have been explained essentially by its nanograin weak anisotropy and its global zero magnetostriction. However, it has been suspected that a more complex problem of two-phase magnetic coupling must be taken into consideration.
F. Mazaleyrat +2 more
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Conduction Band Structure of HgTe from Thermomagnetic Measurements
physica status solidi (b), 1967AbstractThe electron effective mass in n‐type HgTe is found for concentrations between 5 × 1017 and 6 × 1018 cm−3 by measurements of the thermoelectric power in a magnetic field. The effective mass is strongly dependent on the electron concentration. This dependence can be explained by using Kane's model with the parameters mn/m0 = 0.018, ε0 = 0.21 eV.
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Dynamic Measurements of Thermomagnetic Reversal in Gd-Co Films
MAGNETISM AND MAGNETIC MATERIALS — 1973: Nineteenth Annual Conference, 1974The dynamic magnetization reversal which occurred during laser‐induced thermomagnetic recording in films of Gd‐Co was measured as a function of the position of a probe beam which was moved progressively along the coordinate of the spot. In films whose compensation temperature was well below ambient (ΔT=120°C), the onset of reversal occurred at the same
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