Evidence for the neutral charge state model of the DX center in aluminium gallium arsenide

1990 ◽  
Vol 76 (5) ◽  
pp. 609-612 ◽  
Author(s):  
S. Subramanian ◽  
S. Anand ◽  
B.M. Arora
Keyword(s):  
Gallium Arsenide ◽  
Charge State ◽  
Aluminium Gallium Arsenide ◽  
State Model ◽  
Dx Center ◽  
Neutral Charge State

Evidence against the negative-charge-state model for theDXcenter inn-type GaAs

1989 ◽  
Vol 62 (16) ◽  
pp. 1922-1922 ◽  
Author(s):  
D. K. Maude ◽  
L. Eaves ◽  
T. J. Foster ◽  
J. C. Portal
Keyword(s):  
Charge State ◽  
Negative Charge ◽  
State Model

Charge state of theDXcenter in aluminum gallium arsenide from photo-Hall measurements

1993 ◽  
Vol 48 (12) ◽  
pp. 8757-8760 ◽  
Author(s):  
S. Subramanian ◽  
S. Anand ◽  
B. M. Arora ◽  
Y. C. Lu ◽  
E. Bauser
Keyword(s):  
Gallium Arsenide ◽  
Aluminum Gallium Arsenide ◽  
Charge State ◽  
Hall Measurements

scholarly journals Profiles of electrophoretic alleles in natural populations

1975 ◽  
Vol 25 (2) ◽  
pp. 137-143 ◽  
Author(s):  
A. H. D. Brown ◽  
D. R. Marshall ◽  
L. Albrecht
Keyword(s):  
Charge State ◽  
Frequency Distribution ◽  
Finite Population ◽  
Natural Populations ◽  
State Model ◽  
Geometric Series ◽  
Effective Number ◽  
Expected Frequency ◽  
Central Moments

SUMMARYThe charge state model of Ohta & Kimura (1973) for the number of electrophoretically detectable alleles in a finite population, is extended to include mutations of both one and two charge changes. The effective number of alleles (ne) is increased only slightly by this extension. Electrophoretic profiles of neutral variants are shown on average to be leptokurtic and have their odd central moments equal to zero. The expected frequency distribution of pairs of gametes which differ by 1,2,3,… charge units can be obtained as the sum of the appropriate terms from two geometric series.

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