A method of investigating well width fluctuations in diluted magnetic semiconductor superlattices using spin-flip Raman spectroscopy

1996 ◽  
Vol 79 (11) ◽  
pp. 8401-8405
Author(s):  
R. G. Roberts ◽  
W. E. Hagston ◽  
P. Harrison
Keyword(s):  
Raman Spectroscopy ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Semiconductor Superlattices ◽  
Spin Flip ◽  
Diluted Magnetic

Raman Spectroscopy of A Novel Diluted Magnetic Semiconductor: Cubic Cd1−xMnxSe.

1989 ◽  
Vol 161 ◽  
Author(s):  
R. G. Alonso ◽  
E.-K. Suh ◽  
H. Pascher ◽  
E. Oh ◽  
A. K. Ramdas ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Zinc Blende ◽  
Spin Flip ◽  
Mode Behavior ◽  
Diluted Magnetic ◽  
Photoluminescence Studies ◽  
Bound Electrons ◽  
Interaction Characteristic

ABSTRACTIn contrast to the bulk diluted magnetic semiconductor (DMS) Cd1−xMnxSe which occurs with the wurtzite structure, its epilayers grown on (001) GaAs substrate by Molecular Beam Epitaxy exhibit the cubic zinc-blende structure. Raman spectroscopy and photoluminescence studies on this novel DMS show (1) a “two-mode” behavior of the zone center optical phonons, (2) the Raman line associated with the spin-flip in the Zeeman split S = 5/2 ground state of Mn2+, and (3) large Raman shifts associated with the spin-flip of donor-bound electrons. The large magnetic field dependence in (3) with saturation at high fields and low temperature shows that the s-d exchange interaction characteristic of DMS's is also manifested strikingly in the zinc-blende phase of Cd1−xMnxSe.

Transient grating dynamics in Cd1−xMnxTe diluted magnetic semiconductor superlattices

1989 ◽  
Vol 55 (17) ◽  
pp. 1783-1785 ◽  
Author(s):  
Alex Harwit ◽  
M. B. Ritter ◽  
J. M. Hong ◽  
D. D. Awschalom ◽  
L. L. Chang
Keyword(s):  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Transient Grating ◽  
Semiconductor Superlattices ◽  
Diluted Magnetic
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