Theoretical analysis of the Einstein relation in degenerate ternary chalcopyrite semiconductors in the presence of an arbitrarily oriented quantizing magnetic field

1989 ◽  
Vol 65 (1) ◽  
pp. 43-54
Author(s):  
M. Mondal ◽  
K. P. Ghatak ◽  
A. K. Das
Keyword(s):  
Magnetic Field ◽  
Theoretical Analysis ◽  
Einstein Relation ◽  
Chalcopyrite Semiconductors ◽  
Quantizing Magnetic Field

The Influence of Quantizing Magnetic Field on The Magnetic Susceptibilities in Ultra Thin Films of Dilute Magnetic Materials

1993 ◽  
Vol 313 ◽  
Author(s):  
Kamakhya P Ghatak ◽  
S. N. Biswas
Keyword(s):  
Magnetic Field ◽  
Experimental Data ◽  
Thin Films ◽  
Theoretical Analysis ◽  
Film Thickness ◽  
Magnetic Materials ◽  
Ultrathin Films ◽  
Surface Concentration ◽  
Magnetic Susceptibilities ◽  
Quantizing Magnetic Field

ABSTRACTIn this paper we have studied the dia and paramagnetic susceptibilities of the holes in ultrathin films of dilute magnetic materials in the presence of a quantizing magnetic field and compared the same with that of the bulk specimens under magnetic quantization for the purpose of relative comparison. It is found, taking Hg1−xMnxTe and Cd1−xMnxSe as examples, that both the susceptibilities increase with decreasing film thickness and increasing surface concentration in oscillatory Manners. The numerical values of the susceptibilities in ultrathin films of dilute magnetic materials are greater than that of the bulk and the theoretical analysis is in agreement with the experimental data as reported elsewhere.

Effect of a quantizing magnetic field on the Einstein relation in bismuth

1989 ◽  
Vol 67 (1) ◽  
pp. 72-75 ◽  
Author(s):  
M. Mondal ◽  
S. N. Banik ◽  
K. P. Ghatak
Keyword(s):  
Magnetic Field ◽  
Energy Spectrum ◽  
Dispersion Relation ◽  
Einstein Relation ◽  
Energy Bands ◽  
Magnetic Quantization ◽  
Quantizing Magnetic Field ◽  
Special Case

An attempt is made to study the Einstein relation of the carriers in bismuth under magnetic quantization on the basis of the Abrikosov dispersion relation, which includes various types of anisotropics in the energy spectrum. It is found, taking spin and broadening into account, that the same ratio oscillates with the inverse quantizing magnetic field and increases with increasing carrier degeneracy respectively. In addition, the corresponding well-known result of parabolic energy bands is also obtained from the generalized expression as a special case.

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