Dynamics of localized Mn spins in diluted‐magnetic‐semiconductor nanostructures with quantum dots | Zendy

Scherbakov A. V. | Zendy; Akimov A. V. | Zendy; Yakovlev D. R. | Zendy; Ossau W. | Zendy; Molenkamp L. W. | Zendy; Terai Y. | Zendy; Kuroda S. | Zendy; Takita K. | Zendy; Souma I. | Zendy; Oka Y. | Zendy

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Dynamics of localized Mn spins in diluted‐magnetic‐semiconductor nanostructures with quantum dots

Author(s) -

Scherbakov A. V.,

Akimov A. V.,

Yakovlev D. R.,

Ossau W.,

Molenkamp L. W.,

Terai Y.,

Kuroda S.,

Takita K.,

Souma I.,

Oka Y.

Publication year - 2004

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.200301916

Subject(s) - wetting layer , quantum dot , condensed matter physics , spins , magnetic semiconductor , relaxation (psychology) , spin (aerodynamics) , chemistry , materials science , physics , nanotechnology , ferromagnetism , psychology , social psychology , thermodynamics

Dynamics of spin–lattice relaxation of the magnetic Mn‐ion system is investigated for nanostructures with (Cd,Mn)Te and (Cd,Mn)Se diluted‐magnetic‐semiconductor (DMS) quantum dots. A nonequilibrium phonon technique with optical detection of the induced heating of the magnetic ion system was exploited. A strongly nonexponential decay of the spin dynamics is found to be specific for the DMS quantum dots. It is explained in the frame of a model suggesting that the spin dynamics in quantum dots is strongly affected by a spin diffusion into/from a DMS wetting layer, where the spin–lattice relaxation rate differs from that in the quantum dots. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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