Temperature dependence of the rate of electron paramagnetic relaxation in an aqueous solution of chromium nitrate

1977 ◽  
Vol 12 (4) ◽  
pp. 390-394
Author(s):  
M. M. Zaripov
Keyword(s):  
Aqueous Solution ◽  
Temperature Dependence ◽  
Paramagnetic Relaxation ◽  
Chromium Nitrate ◽  
Electron Paramagnetic

The Microscopic Structure Of Shallow Donors In Silicon Carbide

1996 ◽  
Vol 442 ◽  
Author(s):  
J.-M. Spaeth ◽  
S. Greulich-Weber ◽  
M. März ◽  
E. N. Kalabukhova ◽  
S. N. Lukin
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Temperature Dependence ◽  
Double Resonance ◽  
Epr Spectra ◽  
Electron Nuclear Double Resonance ◽  
Paramagnetic Resonance ◽  
Vacancy Pair ◽  
Temperature Spectra ◽  
Electron Paramagnetic

AbstractThe electronic structure of nitrogen donors in 6H-, 4H- and 3C-SiC is investigated by measuring the nitrogen hyperfine (hf) interactions with electron nuclear double resonance (ENDOR) and the temperature dependence of the hf split electron paramagnetic resonance (EPR) spectra. Superhyperfine (shf) interactions with many shells of 13C and 29Si were measured in 6H-SiC. The hf and shf interactions are discussed in the framework of effective mass theory. The temperature dependence is explained with the thermal occupation of the lowest valley-orbit split A1 and E states. It is proposed that the EPR spectra of P donors observed previously in neutron transmuted 6H-SiC at low temperature (<10K) and high temperature (>60K) are all due to substitutional P donors on the two quasi-cubic and hexagonal Si sites, whereby at low temperature the E state is occupied and at high temperature the A1 state. The low temperature spectra are thus thought not to be due to P-vacancy pair defects as proposed previously.

Temperature Dependence of the Electron Paramagnetic Resonance Intensity of Whole Coals

1992 ◽  
pp. 581-604 ◽  
Author(s):  
Kurt S. Rothenberger ◽  
Richard F. Sprecher ◽  
Salvatore M. Castellano ◽  
Herbert L. Retcofsky
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Temperature Dependence ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic

Thermal Anomaly in the Temperature Dependence of the Energy–Volume Coefficient of Aqueous KCl Solutions

1973 ◽  
Vol 51 (12) ◽  
pp. 1885-1888 ◽  
Author(s):  
Ikchoon Lee ◽  
J. B. Hyne
Keyword(s):  
Aqueous Solution ◽  
Temperature Dependence ◽  
Potassium Chloride ◽  
Direct Measurement ◽  
Pure Water ◽  
Pressure Coefficient ◽  
Thermal Anomaly ◽  
Thermal Pressure ◽  
Temperature Range ◽  
Volume Coefficient

The temperature dependence of the energy–volume coefficient of pure water and of aqueous potassium chloride solutions as a function of concentration over the temperature range 10–50 °C has been determined by direct measurement of constant volume thermal–pressure coefficient. The results show that a thermal anomaly exists in the energy–volume coefficient of aqueous solution in the temperature range 30–40 °C and becomes more pronounced as the concentration of solute is increased.

Temperature dependence of the rate of rapid reactions of proton transfer in aqueous solution

1974 ◽  
Vol 23 (2) ◽  
pp. 271-276
Author(s):  
L. A. Katsman ◽  
M. N. Vargaftik ◽  
Ya. K. Syrkin
Keyword(s):  
Aqueous Solution ◽  
Proton Transfer ◽  
Temperature Dependence
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