Electron Paramagnetic Resonance of Gd3+ in Single Crystals of Various Rare‐Earth Ethyl Sulfates at Room Temperature and at 77°K

1972 ◽  
Vol 57 (7) ◽  
pp. 2665-2672 ◽  
Author(s):  
Roger E. Gerkin ◽  
David L. Thorsell
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Rare Earth ◽  
Single Crystals ◽  
Room Temperature ◽  
Paramagnetic Resonance ◽  
Electron Paramagnetic

EPR of Gamma-irradiated L-Glutamine Hydrochloride and N-Carbamoyl-L-glutamic Acid

2005 ◽  
Vol 60 (7) ◽  
pp. 549-553 ◽  
Author(s):  
Şemsettin Osmanoğlua ◽  
Murat Aydın ◽  
M. Halim Başkana
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Glutamic Acid ◽  
Radiation Damage ◽  
Single Crystals ◽  
Room Temperature ◽  
Paramagnetic Resonance ◽  
Temperature Radiation ◽  
Gamma Irradiated ◽  
Electron Paramagnetic

The electron paramagnetic resonance spectra of γ -irradiated L-glutamine hydrochloride and N-carbamoyl- L-glutamic acid single crystals have been investigated at room temperature. Radiation damage centres are attributed to ĊH, ṄH2 and CH2Ċ(NH2)COOH radicals.

EPR Studies of Mn2+-Doped Diammonium Hexaaqua Magnesium(II) Sulfate

2006 ◽  
Vol 61 (12) ◽  
pp. 683-687 ◽  
Author(s):  
Ram Kripal ◽  
Ashutosh Kumar Shukla
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Fine Structure ◽  
Single Crystals ◽  
Room Temperature ◽  
Spin Hamiltonian ◽  
Epr Spectrum ◽  
Paramagnetic Resonance ◽  
X Band ◽  
Hamiltonian Parameters ◽  
Electron Paramagnetic

Electron paramagnetic resonance (EPR) studies of Mn2+ impurity in single crystals of diammonium hexaaqua magnesium(II) sulfate have been carried out at 9.3 GHz (X-band) at room temperature. The EPR spectra exhibit a group of five fine structure transitions. The spin-Hamiltonian parameters were determined. Mn2+ enters the lattice interstitially. The EPR spectrum of a powder sample supports the data obtained by single crystal studies. - PACS number: 76.30

Electron Paramagnetic Resonance of Cu2+ Doped Na2 HAsO4·7H2O Single Crystals

1998 ◽  
Vol 53 (9) ◽  
pp. 779-782
Author(s):  
F. Köksal ◽  
İ. Kartal ◽  
A. Gençten
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Single Crystals ◽  
Ground State ◽  
Room Temperature ◽  
Charge Compensation ◽  
Distorted Octahedron ◽  
Spin Hamiltonian ◽  
Paramagnetic Resonance ◽  
Hamiltonian Parameters ◽  
Electron Paramagnetic

Abstract The electron paramagnetic resonance spectra of Cu2+ doped Na2HAsO4 ·7H2O single crystals were studied at room temperature. The results indicate the substitutional entrance of Cu2+ in two magnetically inequivalent Na+ sites. Charge compensation is supposed to be fulfilled by proton vacancies. The spin Hamiltonian parameters were determined. The ground state for Cu2+ seems to indicate the dominance of the dz² orbital and therefore a compression of the distorted octahedron along its C4v axis.

Electron Paramagnetic Resonance in Cu2O Compared with Other Semiconducting Properties

1971 ◽  
Vol 49 (10) ◽  
pp. 1275-1283 ◽  
Author(s):  
J. C. W. Taylor ◽  
F. L. Weichman ◽  
R. E. D. McClung
Keyword(s):  
Activation Energy ◽  
Electron Paramagnetic Resonance ◽  
Single Crystals ◽  
Room Temperature ◽  
Starting Material ◽  
Paramagnetic Resonance ◽  
Semiconducting Properties ◽  
Wide Range ◽  
Temperature Activation ◽  
Electron Paramagnetic

Electron paramagnetic resonance spectra have been observed in single crystals of Cu2O at 4.2 °K. Six samples cut from the same starting material were individually heated under a wide range of vacuum conditions and comparison was made between the observed e.p.r. spectrum and the luminescence, activation energy, and photoconductivity in the same sample. No direct relationships between e.p.r. spectra and the luminescence and photoconductivity were found although a good correlation between the complexity of the e.p.r. spectra and the room temperature activation energy was observed.

EPR of Gamma Irradiated Nα -Monochloroacetyl-α-Aminoisobutyric Acid

2004 ◽  
Vol 59 (10) ◽  
pp. 665-668 ◽  
Author(s):  
M. Halim Başkan ◽  
Şemsettin Osmanoğlu
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Single Crystals ◽  
Paramagnetic Center ◽  
Room Temperature ◽  
Paramagnetic Resonance ◽  
Aminoisobutyric Acid ◽  
Gamma Irradiated ◽  
Electron Paramagnetic

Electron paramagnetic resonance of γ -irradiated single crystals of Nα -monochloroacetyl-α-aminoisobutyric acid were investigated at room temperature and 130 K. The paramagnetic center as attributed to the (CH3)2 ˙CCOOH radical.

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