scholarly journals Disappearance of electron-hole asymmetry in nanoparticles of Nd1−xCaxMnO3(x=0.6,0.4): magnetization and electron paramagnetic resonance evidence

2015 ◽  
Vol 117 (17) ◽  
pp. 17D514 ◽  
Author(s):  
K. S. Bhagyashree ◽  
S. V. Bhat
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Electron Hole ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic

Thermally stimulated luminescence and electron paramagnetic resonance studies of Eu3+-doped yttrium borate

2006 ◽  
Vol 21 (5) ◽  
pp. 1117-1123 ◽  
Author(s):  
M. Anitha ◽  
Manoj Mohapatra ◽  
R.M. Kadam ◽  
T.K. Seshagiri ◽  
A.K. Tyagi ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Thermally Stimulated Luminescence ◽  
Epr Spectrum ◽  
Electron Hole ◽  
Luminescent Center ◽  
Paramagnetic Resonance ◽  
Epr Signal ◽  
Gamma Irradiated ◽  
Electron Paramagnetic ◽  
Emission Studies

Thermally stimulated luminescence (TSL) and electron paramagnetic resonance (EPR) studies were carried out on gamma-irradiated europium-doped yttrium borate samples in the temperature range 300–600 K. TSL studies showed the presence of two glow peaks, a relatively weaker one at 390 K and an intense one at around 550 K. Room-temperature EPR spectrum of irradiated samples revealed the formation of two hole trapped radicals, namely, BO32− and O2−. Temperature variation studies showed drastic reduction in the EPR signal intensities of these radicals around 390 and 550 K indicating thermal destruction of O2− and BO32− radicals, respectively. The observed TSL emission is caused by the recombination of thermally released holes from O2− and BO32− radical ions with electrons. The energy released in electron-hole recombination process is used for the excitation of Eu3+ ion resulting in TSL glow peaks. TSL emission studies confirmed that Eu3+ acts as luminescent center for both the peaks.

ELECTRON PARAMAGNETIC RESONANCE STUDIES OF PHASE TRANSITIONS IN KCN

1976 ◽  
Vol 37 (C7) ◽  
pp. C7-241-C7-246 ◽  
Author(s):  
J.P. VON DER WEID ◽  
L.C. SCAVARDA DO CARMO ◽  
R. R. DO SANTOS ◽  
B. KOILLER ◽  
S. COSTA RIBEIRO ◽  
...  
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Phase Transitions ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic

Electron paramagnetic resonance in silicon and germanium

1964 ◽  
Vol 83 (7) ◽  
pp. 433-502 ◽  
Author(s):  
L.D. Bogomolova ◽  
V.N. Lazukin ◽  
I.V. Chepeleva
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Paramagnetic Resonance ◽  
Silicon And Germanium ◽  
Electron Paramagnetic
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