Spin injection into a two-dimensional electron gas using inter-digital-ferromagnetic contacts

C.M. Hu, J. Nitta, Ane Jensen, Jørn Bindslev Hansen, H. Takayanagi, T. Matsuyama, D. Grundler, G. Meier, D. Heitmann, U. Merkt

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We present a model that describes the spin injection across a single interface with two electrodes. The spin-injection rate across a typical hybrid junction made of ferromagnet (FM) and a two-dimensional electron gas (2DEG) is found at the percentage level. We perforin spin-injection-detection experiment on devices with two ferromagnetic contacts on a 2DEG confined in an InAs quantum well. A spin-injection rate of 4.5% is estimated from the measured magnetoresistance.
Original languageEnglish
JournalPhysica e-low-dimensional systems & nanostructures
Volume12
Issue number1-4
Pages (from-to)395-398
ISSN1386-9477
Publication statusPublished - 2002

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