Optically patterned nuclear doughnuts in GaAs/MnAs heterostructures

Applied Physics Letters

Volumn 85, Issue 7, 2004, Pages 1184-1186

  Stephens, J ^a   Berezovsky, J ^a   Kawakami, R K ^a   Gossard, A C ^a   Awschalom, D D ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

FERROMAGNETIC PROXIMITY POLARIZATION (FPP); LARMOR FREQUENCY; NUCLEAR-SPIN POLARIZATION; TIME-RESOLVED KERR ROTATION (TRKR);

FARADAY EFFECT; FERROMAGNETIC MATERIALS; FOURIER OPTICS; LASER BEAMS; LIGHT POLARIZATION; MICROSCOPES; MOLECULAR BEAM EPITAXY; OPTICAL KERR EFFECT; SEMICONDUCTING MANGANESE COMPOUNDS;

SEMICONDUCTING GALLIUM ARSENIDE;

EID: 4444267127     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1781743     Document Type: Article

References (17)

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16. The temperature is measured by a sensor mounted on the copper cold finger several millimeters from the sample. Local heating due to the imprinting beam is almost certainly present.
17. We have not observed nuclear-spin diffusion either when polarizing (imprinting beam on) or depolarizing (imprinting beam off), presumably due to the fact that in our samples nuclear-spin relaxation is dominated by depolarization via spin-flip processes with the relatively abundant itinerant electrons.