The electric field gradient in natural iron-doped chrysoberyl Al2BeO4 and sinhalite MgAlBO4 single crystals

2011 ◽  
Vol 38 (10) ◽  
pp. 787-799 ◽  
Author(s):  
Werner Lottermoser ◽  
Günther J. Redhammer ◽  
Sven-Ulf Weber ◽  
Fred Jochen Litterst ◽  
Gerold Tippelt ◽  
...  
Keyword(s):  
Electric Field ◽  
Electric Field Gradient ◽  
Single Crystals ◽  
Field Gradient ◽  
Natural Iron ◽  
Iron Doped

Electric Field Gradient at Gd in Gadolinium and Rare Earth Trifluoride Single Crystals

1984 ◽  
pp. 355-363
Author(s):  
M. Budzynski ◽  
E. A. Goremychkin ◽  
O. I. Kochetov ◽  
A. Latuszynski ◽  
P. Mikolajczak ◽  
...  
Keyword(s):  
Rare Earth ◽  
Electric Field ◽  
Electric Field Gradient ◽  
Single Crystals ◽  
Field Gradient

Electric Field Gradient at Gd in Gadolinium and Rare Earth Trifluoride Single Crystals

1984 ◽  
Vol 124 (1) ◽  
pp. 355-362 ◽  
Author(s):  
M. Budzynski ◽  
E. A. Goremychkin ◽  
O. I. Kochetov ◽  
A. Latuszynski ◽  
P. Mikolajczak ◽  
...  
Keyword(s):  
Rare Earth ◽  
Electric Field ◽  
Electric Field Gradient ◽  
Single Crystals ◽  
Field Gradient

Electric-field gradient characterization at181Ta impurities in sapphire single crystals

2005 ◽  
Vol 242 (9) ◽  
pp. 1928-1932 ◽  
Author(s):  
M. Rentería ◽  
G. N. Darriba ◽  
L. A. Errico ◽  
E. L. Muñoz ◽  
P. D. Eversheim
Keyword(s):  
Electric Field ◽  
Electric Field Gradient ◽  
Single Crystals ◽  
Field Gradient

Orientation of the main axis of the electric field gradient at the iron nucleus in some iron doped copper oxide compounds

1990 ◽  
Vol 55 (1-4) ◽  
pp. 1261-1265 ◽  
Author(s):  
P. Dalmas De Réotier ◽  
P. Vulliet ◽  
A. Yaouanc ◽  
P. Chaudouët ◽  
J. P. Sénateur ◽  
...  
Keyword(s):  
Electric Field ◽  
Copper Oxide ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Main Axis ◽  
Iron Nucleus ◽  
Iron Doped

Sign and Orientation Determination of the Principal Axis of the Electric Field Gradient in Fe57 Enriched Deoxygenated Myoglobin Single Crystals

1974 ◽  
Vol 29 (3-4) ◽  
pp. 241-244 ◽  
Author(s):  
Ulrich Gonser ◽  
Yutaka Maeda ◽  
Alfred Trautwein ◽  
Fritz Parak ◽  
Helmut Formanek
Keyword(s):  
Electric Field ◽  
Electric Field Gradient ◽  
Single Crystals ◽  
Field Gradient ◽  
Principal Axis ◽  
Quadrupole Split ◽  
Mössbauer Measurements ◽  
Orientation Determination ◽  
Two Alternatives

Single crystals of myoglobin enriched on Fe57 with a diameter of about 0.5 mm were prepared. After deoxygenation crystallographic alignment and Mössbauer measurements were carried out at 77°K. In the experiment eight different orientations were selected by rotating the crystal around the b axis, thus, b axis and γ-ray propagation direction remained perpendicular to each other. From the intensity ratio of the quadrupole split spectra we derive the sign and the orientation of the principal axis of the electric field gradient. We find Vzz to be positive and forming an angle of 40° to the b axis. From two alternatives consistent with our experiments we conclude that VZZ is most likely oriented along one of the four Fe-N directions in the heme.

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