Use of thermionic emission for studying of point defects in NiO single crystals

1984 ◽  
Vol 19 (6) ◽  
pp. 1991-1996 ◽  
Author(s):  
J. Szuber
Keyword(s):  
Single Crystals ◽  
Point Defects ◽  
Thermionic Emission

Effect of Mn3+ doping on crystal structure, point defects, and optical properties in green Ca3(VO4)2 single crystals

2021 ◽  
pp. 111300
Author(s):  
Galina M. Kuz’micheva ◽  
Liudmila. I. Ivleva ◽  
Irina A. Kaurova ◽  
Evgeny V. Khramov ◽  
Victor B. Rybakov ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Optical Properties ◽  
Single Crystals ◽  
Point Defects

Positron annihilation in fatigued copper

1982 ◽  
Vol 60 (2) ◽  
pp. 201-204 ◽  
Author(s):  
S. Kupca ◽  
D. P. Kerr ◽  
B. G. Hogg ◽  
Z. S. Basinski
Keyword(s):  
Single Crystals ◽  
Point Defects ◽  
High Purity ◽  
Low Temperatures ◽  
Annealing Process ◽  
Simple Diffusion ◽  
Diffusion Limited ◽  
Annealing Study ◽  
Positron Lifetimes ◽  
Trapping Process

Positron lifetimes have been measured in an isochronal annealing study of dynamically fatigued, high purity Cu single crystals. Decomposition of the lifetime spectra into two components results in a description of the annealing process in terms of the lifetime and fraction of trapped positrons. Positron lifetimes were also determined at a series of low temperatures (10–300 K) at different stages of annealing. The lifetime of positrons trapped at point defects is found to vary with temperature indicating that a description of the trapping process according to a simple diffusion limited model is not applicable.

scholarly journals Exploring point defects and trap states in undoped SrTiO3 single crystals

2021 ◽  
Author(s):  
Matthäus Siebenhofer ◽  
Federico Baiutti ◽  
Juan de Dios Sirvent ◽  
Tobias M. Huber ◽  
Alexander Viernstein ◽  
...  
Keyword(s):  
Single Crystals ◽  
Point Defects ◽  
Trap States

Effect of Lattice Disorder on the Line Shape of NMR Spin Echo Signals

1969 ◽  
Vol 24 (3) ◽  
pp. 332-336 ◽  
Author(s):  
M Mehring ◽  
O Kanert
Keyword(s):  
Shear Stress ◽  
Dislocation Density ◽  
Single Crystals ◽  
Point Defects ◽  
Line Shape ◽  
Spin Echo ◽  
Square Root ◽  
Lattice Disorder ◽  
Line Shapes ◽  
The Mean

Abstract The spin echo line shapes of Rb87 and Br79.81 have been measured in undeformed and plasti­cally deformed RbBr single crystals. Analysis of the line shape of the measured echoes shows that the quadrupolar part of the echoes is given by point defects in the case of undeformed crystals, whereas in deformed crystals this term is determined by dislocations. A quantitative evaluation of the width of the quadrupolar shape yields the mean dislocation density in the samples as a function of the shear stress acting during the deformation. It was found that the square root of the dislocation density is proportional to the shear stress.

Radiation-stimulated point defects in Li2B4O7 single crystals

1999 ◽  
Vol 25 (9) ◽  
pp. 709-711 ◽  
Author(s):  
E. F. Dolzhenkova ◽  
M. F. Dubovik ◽  
A. V. Tolmachev ◽  
V. N. Baumer ◽  
L. A. Grin’ ◽  
...  
Keyword(s):  
Single Crystals ◽  
Point Defects
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