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Study on the spin polarization of a current through a hybrid resonant tunneling diode
- Authors
- Li, Ming Kai; Kang, Tae Won; Kim, Nammee
- Issue Date
- Jul-2010
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- diluted magnetic semiconductors; resonant tunneling devices; spin polarized transport
- Citation
- PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, v.247, no.7, pp.1786 - 1790
- Journal Title
- PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
- Volume
- 247
- Number
- 7
- Start Page
- 1786
- End Page
- 1790
- ISSN
- 0370-1972
- Abstract
- The effects of spin-splitting energy and temperature on the electric transport properties through a hybrid resonant tunneling diode (RTD) with ferroelectric barriers and a diluted magnetic semiconductor (DMS) quantum well are Studied by using the non-equilibrium, Green's function method: The results, show that the period:Of:Spin polarization oscillation as a function of a bias voltage increases by increasing the spin-splitting energy of the DMS quantum well. The spin polarization of the current near the Fermi level is highly influenced by a change in temperature. The RTD with a ferromagnetic quantum well is more efficient than that with a ferromagnetic emitter to manipulate the spin direction of the current and to enhance the spin polarization of the current without changing the direction of an external magnetic field. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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Related Researcher
- Kim, Nam Mee
- College of Natural Sciences (Department of Physics)