Correlation between Luminescence and EPR Spectroscopy as Evidence of Ytterbium Pair Formation in Li 6 Ln(BO 3 ) 3 :Yb 3+ (Ln=Gd, Y) Borate Single Crystals

ChemPhysChem ◽  
2011 ◽  
Vol 12 (7) ◽  
pp. 1288-1293 ◽  
Author(s):  
Véronique Jubera ◽  
Marie Chavoutier ◽  
Alla Artemenko ◽  
Philippe Veber ◽  
Matias Velazquez ◽  
...  
Keyword(s):  
Single Crystals ◽  
Epr Spectroscopy ◽  
Pair Formation

scholarly journals Photosystem II single crystals studied by EPR spectroscopy at 94 GHz: The tyrosine radical YFormula

2001 ◽  
Vol 98 (12) ◽  
pp. 6623-6628 ◽  
Author(s):  
W. Hofbauer ◽  
A. Zouni ◽  
R. Bittl ◽  
J. Kern ◽  
P. Orth ◽  
...  
Keyword(s):  
Photosystem Ii ◽  
Single Crystals ◽  
Epr Spectroscopy ◽  
Tyrosine Radical

Über ein niedervalentes Titan-Wolframoxid: Ti0,54W0,46O2 / On a Low Valent Titanium Tungsten Oxide: Ti0,54W0.46O2

1996 ◽  
Vol 51 (1) ◽  
pp. 29-31 ◽  
Author(s):  
E. Peters ◽  
Hk. Müller-Buschbaum
Keyword(s):  
Metal Ions ◽  
Tungsten Oxide ◽  
Single Crystals ◽  
Pair Formation ◽  
Rutile Structure ◽  
Space Group ◽  
Structure Space ◽  
Laser Techniques ◽  
Low Valent ◽  
Group D

Abstract Single crystals of Ti0.54W0.46O2 have been prepared by CO2-LASER techniques. This phase crystallizes with a non-distorted rutile structure, space group D144H-P42/mnm, a = 4.6862(4), c = 2.9039(3) Å, Z = 2. Split positions of the statistically distributed metal ions show the existence of W-W pair formation as reported for pure WO2.

Diffusion von In und Cu in ZnS-Einkristallen

1969 ◽  
Vol 24 (9) ◽  
pp. 1301-1306 ◽  
Author(s):  
H. Nelkowski ◽  
G. Bollmann
Keyword(s):  
Experimental Data ◽  
Activation Energy ◽  
Diffusion Equation ◽  
Temperature Dependence ◽  
Single Crystals ◽  
Diffusion Constant ◽  
Pair Formation ◽  
Concentration Profiles ◽  
Radioactive Tracers ◽  
Calculated Concentration

Abstract The diffusion of In and Cu in ZnS single crystals was investigated by means of radioactive tracers. The diffusion constant Do and the activation energy EA of the diffusion equation D = D0 · exp(- EA/kT) were determined by analysing the temperature dependence of the concentration profiles. The result for ln EA = 2,2 eV, D0 = 30cm2 s-1) is interpreted as a diffusion via Zn vacancies and that for Cu (EA - 0,79 eV, D0 = 2,6 · 10-3 cm2 s-1) as a diffusion via interstitial sites which probably is influenced by Zn vacancies. - Preceding doping with In significantly retards the Cu diffusion, consistent with the model of Cu-In pair formation. The reasons for some deviations of the experimental data from the calculated concentration profiles are discussed. - Diffusion measurements with high Cu-concentrations yield a Cu-solubility of 300 ppm at 840 K and 1000 ppm at 950 K.

EPR Spectroscopy of Impurity Ytterbium Ions in Synthetic Forsterite Single Crystals

2021 ◽  
Author(s):  
V. F. Tarasov ◽  
A. A. Sukhanov ◽  
E. V. Zharikov ◽  
K. A. Subbotin ◽  
D. A. Lis
Keyword(s):  
Single Crystals ◽  
Epr Spectroscopy

Dynamics in the Mn2+Binding Site in Single Crystals of Concanavalin A Revealed by High-Field EPR Spectroscopy†

Biochemistry ◽  
2003 ◽  
Vol 42 (25) ◽  
pp. 7863-7870 ◽  
Author(s):  
Raanan Carmieli ◽  
Palanichamy Manikandan ◽  
Boris Epel ◽  
A. Joseph Kalb (Gilbo ◽  
Alexander Schnegg ◽  
...  
Keyword(s):  
Binding Site ◽  
Single Crystals ◽  
Concanavalin A ◽  
Epr Spectroscopy ◽  
High Field

EPR Spectroscopy of Impurity Thulium Ions in Yttrium Orthosilicate Single Crystals

JETP Letters ◽  
2018 ◽  
Vol 108 (3) ◽  
pp. 210-214
Author(s):  
A. A. Sukhanov ◽  
V. F. Tarasov ◽  
Yu. D. Zavartsev ◽  
A. I. Zagumennyi ◽  
S. A. Kutovoi
Keyword(s):  
Single Crystals ◽  
Epr Spectroscopy

scholarly journals Epr Investigations of Impurities in the Lanthanide Orthophosphates

1980 ◽  
Vol 3 ◽  
Author(s):  
M. M. Abraham ◽  
L. A. Boatner ◽  
M. Rappaz
Keyword(s):  
Solid State ◽  
Single Crystals ◽  
Structural Properties ◽  
Epr Spectroscopy ◽  
General Class ◽  
Chemical Properties ◽  
Transition Series ◽  
State Chemical ◽  
Lanthanide Orthophosphates

ABSTRACTLanthanide orthophosphates formed from elements in the first half of the 4f transition series are analogs of the monoclinic mineral monazite. The known geologic properties of this mineral make the general class of lanthanide orthophosphate compounds attractive substances for long-term containment and disposal of α-active actinide nuclear wastes. EPR spectroscopy has been used to investigate the structural properties and solid state chemical properties of impurities in these materials and to compare the characteristics of single crystals and polycrystalline bodies.

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