Raman scattering from magnetic excitations in diluted magnetic semiconductors (invited)

1982 ◽  
Vol 53 (11) ◽  
pp. 7649-7653 ◽  
Author(s):  
A. K. Ramdas
Keyword(s):  
Raman Scattering ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Magnetic Excitations ◽  
Diluted Magnetic

Raman Scattering by Magnetic Excitations in Diluted Magnetic Semiconductors

1986 ◽  
Vol 89 ◽  
Author(s):  
A. K. Ramdas ◽  
S. Rodriguez
Keyword(s):  
Angular Momentum ◽  
Raman Scattering ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Total Spin ◽  
Electromagnetic Spectrum ◽  
Significant Information ◽  
Magnetic Excitations ◽  
Microscopic Models ◽  
Diluted Magnetic

AbstractRaman scattering provides significant information on the nature of the magnetic excitations of diluted magnetic semiconductors (DMS). Transitions involving an exchange of a quantum of angular momentum between the system and the radiation field result in Raman lines with shifts equal to the energy of the magnetic excitations in which the total spin of the crystal changes by ħ. Such transitions have a one-to-one correspondence with those seen in magnetic resonance but observed in the optical rather than in the microwave region of the electromagnetic spectrum. In the Mn-based II-VI DMS a variety of magnetic excitations have been observed in their Raman spectra. Microscopic models underlying these phenomena provide powerful insights into the nature of the magnetism of DMS.

Raman scattering from superlattices of diluted magnetic semiconductors

1987 ◽  
Vol 36 (8) ◽  
pp. 4316-4331 ◽  
Author(s):  
E.-K. Suh ◽  
D. U. Bartholomew ◽  
A. K. Ramdas ◽  
S. Rodriguez ◽  
S. Venugopalan ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Diluted Magnetic

Spin-flip Raman scattering inn-type diluted magnetic semiconductors

1985 ◽  
Vol 32 (1) ◽  
pp. 323-340 ◽  
Author(s):  
D. L. Peterson ◽  
D. U. Bartholomew ◽  
U. Debska ◽  
A. K. Ramdas ◽  
S. Rodriguez
Keyword(s):  
Raman Scattering ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Spin Flip ◽  
Diluted Magnetic
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