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.

Raman spectroscopy of Cu doping in Zn1−xCoxO diluted magnetic semiconductor

2009 ◽  
Vol 40 (11) ◽  
pp. 1535-1538 ◽  
Author(s):  
Luc Huy Hoang ◽  
Nguyen Thi Minh Hien ◽  
Nguyen Hoang Hai ◽  
Pham Van Hai ◽  
Nguyen The Khoi ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Cu Doping ◽  
Diluted Magnetic

Synthesis of doped zinc blende-phase InSe:M (M = Fe and Co) nanocrystals for diluted magnetic semiconductor nanomaterials

CrystEngComm ◽  
2013 ◽  
Vol 15 (18) ◽  
pp. 3734 ◽  
Author(s):  
Jiajia Ning ◽  
Guanjun Xiao ◽  
Chunzhong Wang ◽  
Bingbing Liu ◽  
Guangtian Zou ◽  
...  
Keyword(s):  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Zinc Blende ◽  
Semiconductor Nanomaterials ◽  
Diluted Magnetic

Zinc-blende Mg1−xMnxTe — a new diluted magnetic semiconductor system

1998 ◽  
Vol 184-185 ◽  
pp. 976-979 ◽  
Author(s):  
E. Janik ◽  
E. Dynowska ◽  
J. Ba̧k-Misiuk ◽  
T. Wojtowicz ◽  
G. Karczewski ◽  
...  
Keyword(s):  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Zinc Blende ◽  
Semiconductor System ◽  
Diluted Magnetic

SPIN DYNAMICS IN III-V/II-VI: Mn HETEROVALENT QUANTUM WELLS

2009 ◽  
Vol 23 (12n13) ◽  
pp. 2739-2749
Author(s):  
A. A. TOROPOV ◽  
YA. V. TERENT'EV ◽  
A. V. LEBEDEV ◽  
P. S. KOP'EV ◽  
S. V. IVANOV ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Heavy Hole ◽  
Diluted Magnetic Semiconductor ◽  
Spin Dynamics ◽  
Magnetic Semiconductor ◽  
Equation Model ◽  
Double Quantum ◽  
3 Dimensional ◽  
Spin Flip ◽  
Diluted Magnetic

We report on the spectroscopic magnetooptical studies of spin dynamics in diluted magnetic semiconductor (DMS) GaAs / AlGaAs / ZnSe / ZnCdMnSe heterovalent double quantum wells (QW). The transients of circularly polarized photoluminescence in an external magnetic field are detected in the structures with different widths of the GaAs QW. The analysis of the data, performed within the rate-equation model, has allowed separate estimations of the spin relaxation rate of localized electrons and holes. The spin flip of the electrons confined in the DMS ZnCdMnSe QW is faster than 20 ps, whereas the spin flip of the heavy hole localized in the GaAs QW is as long as ~9 ns. The long spin flip of the holes is presumably governed by their strong 3-dimensional localization.

Spin-flip Raman scattering in a diluted magnetic semiconductor: Cd1−xMnxTe

1982 ◽  
Vol 43 (9) ◽  
pp. 667-669 ◽  
Author(s):  
D.L. Peterson ◽  
A. Petrou ◽  
M. Dutta ◽  
A.K. Ramdas ◽  
S. Rodriguez
Keyword(s):  
Raman Scattering ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Spin Flip ◽  
Diluted Magnetic

Photoluminescence studies of type-II diluted magnetic semiconductor ZnMnTe∕ZnSe quantum dots

2006 ◽  
Vol 89 (26) ◽  
pp. 263111 ◽  
Author(s):  
M. C. Kuo ◽  
J. S. Hsu ◽  
J. L. Shen ◽  
K. C. Chiu ◽  
W. C. Fan ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Type Ii ◽  
Diluted Magnetic ◽  
Photoluminescence Studies
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