Nuclear effects in Kerr rotation-detected magnetic resonance of electrons in GaAs

Heaton, B. D.; Colton, John; Jenson, Daniel; Johnson, M. J.; Bracker, Allan S.

doi:10.1016/j.ssc.2009.11.019

Cited by 5 publications

(1 citation statement)

References 32 publications

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“…This particular well of this particular sample has been the study of other spin-related investigations by our group and others, including Hanle effect measurements of T 2 * , 30 time resolved Kerr rotation measurements to study optical initialization and T 2 * lifetimes, 23 and optically-detected electron spin resonance measurements which manipulated spin states with microwaves. 31…”

Section: Samplementioning

confidence: 99%

Long-lived electron spins in a modulation doped (100) GaAs quantum well

Colton

Meyer

Clark

et al. 2012

Journal of Applied Physics

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We have measured T1 spin lifetimes of a 14 nm modulation-doped (100) GaAs quantum well using a time-resolved pump-probe Kerr rotation technique. The quantum well was selected by tuning the wavelength of the probe laser. T1 lifetimes in excess of 1 microsecond were measured at 1.5 K and 5.5 T, exceeding the typical T2* lifetimes that have been measured in GaAs and II-VI quantum wells by orders of magnitude. We observed effects from nuclear polarization, which were largely removable by simultaneous nuclear magnetic resonance, along with two distinct lifetimes under some conditions that likely result from probing two differently-localized subsets of electrons.Comment: 7 pages; 7 figure

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Section: Samplementioning

confidence: 99%