Authors: Korenev, Vladimir L.
Kalitukha, I. V.
Akimov, Ilya A.
Sapega, V. F.
Zhukov, Evgeny A.
Kirstein, Erik
Ken, O. S.
Kudlacik, Dennis
Karczewski, G.
Wiater, M.
Wojtowicz, T.
Ilyinskaya, N. D.
Lebedeva, N. M.
Komissarova, T. A.
Kusrayev, Yu.G.
Yakovlev, Dmitri R.
Bayer, Manfred
Title: Low voltage control of exchange coupling in aferromagnet-semiconductor quantum well hybridstructure
Language (ISO): en
Abstract: Voltage control of ferromagnetism on the nanometer scale is highly appealing for the development of novel electronic devices with low power consumption, high operation speed, reliable reversibility and compatibility with semiconductor technology. Hybrid structures based on the assembly of ferromagnetic and semiconducting building blocks are expected to show magnetic order as a ferromagnet and to be electrically tunable as a semiconductor. Here, we demonstrate the electrical control of the exchange coupling in a hybrid consisting of a ferromagnetic Co layer and a semiconductor CdTe quantum well, separated by a thin non-magnetic (Cd,Mg)Te barrier. The electric field controls the phononic ac Stark effect—the indirect exchange mechanism that is mediated by elliptically polarized phonons emitted from the ferromagnet. The effective magnetic field of the exchange interaction reaches up to 2.5 Tesla and can be turned on and off by application of 1V bias across the heterostructure.
Subject Headings: Ferromagnetism
Spintronics
Subject Headings (RSWK): Ferromagnetismus
Spintronik
URI: http://hdl.handle.net/2003/38289
http://dx.doi.org/10.17877/DE290R-20259
Issue Date: 2019-07-01
Rights link: http://creativecommons.org/licenses/by/4.0/
Appears in Collections:Experimentelle Physik II

Files in This Item:
File Description SizeFormat 
s41467-019-10774-0.pdf823.2 kBAdobe PDFView/Open


This item is protected by original copyright



All resources in the repository are protected by copyright.