Proposal for a ferromagnetic multiwell spin oscillator

Ertler, Christian and Poetz, Walter and Fabian, Jaroslav (2010) Proposal for a ferromagnetic multiwell spin oscillator. APPLIED PHYSICS LETTERS, 97 (4): 042104. ISSN 0003-6951,

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Abstract

The highly nonlinear coupling of transport and magnetic properties in a multiwell heterostructure, which comprises ferromagnetic quantum wells made of diluted magnetic semiconductors, is theoretically investigated. The interplay of resonant tunneling and carrier-mediated ferromagnetism in the magnetic wells induces very robust, self-sustained current and magnetization oscillations. Over a large window of steady bias voltages the spin polarization of the collector current is oscillating between positive and negative values, realizing a spin oscillator device. (C) 2010 American Institute of Physics. [doi:10.1063/1.3469999]

Item Type: Article
Uncontrolled Keywords: SEMICONDUCTOR SUPERLATTICES; QUANTUM-WELLS; ferromagnetic materials; magnetic traps; magnetic tunnelling; magnetisation; oscillators; resonant tunnelling; semiconductor quantum wells; semimagnetic semiconductors; spin polarised transport
Subjects: 500 Science > 530 Physics
Divisions: Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian
Depositing User: Dr. Gernot Deinzer
Date Deposited: 22 Jul 2020 06:34
Last Modified: 22 Jul 2020 06:34
URI: https://pred.uni-regensburg.de/id/eprint/24449

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