Reduced interface reaction during the epitaxial Fe growth on InAs for high efficiency spin injection
نویسندگان
چکیده
منابع مشابه
Interface magnetic properties of epitaxial Fe-InAs heterostructures
The growth and interface magnetic properties of epitaxial Fe films grown on InAs (100)-4 2 have been studied using low-energy electron diffraction, in situ magneto-optical Kerr effect, and X-ray magnetic circular dichronism. The magnetic properties at room temperature were found to proceed via three phases with thickness; a nonmagnetic phase, a superparamagnetic phase, and a ferromagnetic phase...
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Spin-valve, weak localization/antilocalization, and scanned probe microscopy measurements are used to investigate the influence of sulfur-based surface treatments and electrically insulating barrier layers on spin injection into, and spin transport within, the two-dimensional electron layer at the surface of p-type InAs at 4.2 K. An electrically insulating barrier layer is found to be required ...
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We report investigation of the spin relaxation in InAs films grown on GaAs at a temperature range from 77 K to 290 K. InAs is known to have a surface accumulation layer and the depth profile of the concentration and mobility is strongly nonuniform. We have correlated the spin relaxation with a multilayer analysis of the transport properties and find that the surface and the interface with the G...
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Shape transition during epitaxial growth of InAs quantum dots on GaAs(001): Theory and experiment
137 family and large islands that show a variety of steeper facets, among them the 101 , 111 , and 1̄1̄1̄ orientations. The calculations of island stability employ a hybrid approach, where the elastic strain relief in the islands is calculated by continuum elasticity theory, while surface energies and surface stresses are taken from density-functional theory calculations that take into account the...
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ژورنال
عنوان ژورنال: Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures
سال: 2004
ISSN: 0734-211X
DOI: 10.1116/1.1755711