Artículo
Terahertz radiation from magnetic excitations in diluted magnetic semiconductors
Rungsawang, R.; Perez, F.; Oustinov, D.; Gomez, Javier Enrique
; Kolkovsky, V.; Karczewski, G.; Wojtowicz, T.; Madéo, J.; Jukam, N.; Dhillon, S.; Tignon, J.
![Icon](/themes/CONICETDigital/images/conicet.png)
Fecha de publicación:
26/04/2013
Editorial:
American Physical Society
Revista:
Physical Review Letters
ISSN:
0031-9007
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We probed, in the time domain, the THz electromagnetic radiation originating from spins in CdMnTe diluted magnetic semiconductor quantum wells containing high-mobility electron gas. Taking advantage of the efficient Raman generation process, the spin precession was induced by low power near-infrared pulses. We provide a full theoretical first-principles description of spin-wave generation, spin precession, and of emission of THz radiation. Our results open new perspectives for improved control of the direct coupling between spin and an electromagnetic field, e.g., by using semiconductor technology to insert the THz sources in cavities or pillars.
Palabras clave:
Radiacion Thz
,
Quantum Well
,
Ondas de Espines
,
Raman
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Rungsawang, R.; Perez, F.; Oustinov, D.; Gomez, Javier Enrique; Kolkovsky, V.; et al.; Terahertz radiation from magnetic excitations in diluted magnetic semiconductors; American Physical Society; Physical Review Letters; 110; 17; 26-4-2013; 177203-177208
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