Magnetoresistance due to conduction band splitting in magnetic semiconductors

1975 ◽  
Author(s):  
R. L. Kautz ◽  
Y. Shapira
Keyword(s):  
Conduction Band ◽  
Magnetic Semiconductors ◽  
Band Splitting

CARRIER-DENSITY DEPENDENCE OF THE EXCHANGE COUPLING BETWEEN MAGNETIC IONS AND CONDUCTION BAND ELECTRONS IN HEAVILY n-TYPE Zn(1-x)MnxSe AND OPTICALLY PUMPED Cd(1-x)MnxTe

2007 ◽  
Vol 21 (08n09) ◽  
pp. 1632-1637 ◽  
Author(s):  
M. LENTZE ◽  
P. GRABS ◽  
J. GEURTS ◽  
K. RÖNNBURG ◽  
E. MOHLER ◽  
...  
Keyword(s):  
Conduction Band ◽  
Exchange Coupling ◽  
Carrier Density ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Optically Pumped ◽  
Time Resolved ◽  
Electronic Spin ◽  
Ferromagnetic Character ◽  
Diluted Magnetic

We report on the analysis of the influence of carrier concentration on the exchange coupling between conduction band electrons and Mn d-electrons in diluted magnetic semiconductors. For this analysis we employed (i) electronic spin-flip Raman spectroscopy on heavily n-doped ( Zn , Mn ) Se , (ii) time-resolved Faraday rotation on optically pumped ( Cd , Mn ) Te . With increasing carrier density, a reduction of the exchange energy N0α up to 30 % is observed. It is explained by a weakening of the ferromagnetic character of the coupling of conducton-band electrons to the Mn d-electrons by an admixture of an antiferromagnetic (p-d) coupling contribution to the ferromagnetic (s-d) one for q ≠ 0.

Dipole-correlated carrier transportation and orbital reconfiguration in strain-distorted SrNbxTi1−xO3/KTaO3

2017 ◽  
Vol 19 (44) ◽  
pp. 29913-29917 ◽  
Author(s):  
Jikun Chen ◽  
Xinyou Ke ◽  
Jiaou Wang ◽  
Takeaki Yajima ◽  
Haijie Qian ◽  
...  
Keyword(s):  
Conduction Band ◽  
Band Splitting ◽  
Carrier Transportation

A distinct transportation characteristic of conduction band splitting is achieved by coupling the carriers with randomly distributed lattice-dipoles for strain-distorted SrNbxTi1−xO3/KTaO3.

Positive magnetoresistance due to conduction-band splitting in EuSe and EuTe

1974 ◽  
Vol 47 (1) ◽  
pp. 39-40 ◽  
Author(s):  
Y. Shapira ◽  
R.L. Kautz ◽  
T.B. Reed
Keyword(s):  
Conduction Band ◽  
Positive Magnetoresistance ◽  
Band Splitting

Conduction band splitting and transport properties of Bi2Se3

2004 ◽  
Vol 177 (4-5) ◽  
pp. 1704-1712 ◽  
Author(s):  
J. Navrátil ◽  
J. Horák ◽  
T. Plecháček ◽  
S. Kamba ◽  
P. Lošt’ák ◽  
...  
Keyword(s):  
Transport Properties ◽  
Conduction Band ◽  
Band Splitting
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