A two-dimensional spin field-effect switch.
TLDR
In this paper, a van de Waals heterostructure of atomically thin graphene and semiconducting MoS2 is proposed to switch the spin current in the channel between ON and OFF states by tuning the spin absorption into the semiconductor with a gate electrode.Abstract:
Future development in spintronic devices will require an advanced control of spin currents, for example by an electric field. Here we demonstrate an approach that differs from previous proposals such as the Datta and Das modulator, and that is based on a van de Waals heterostructure of atomically thin graphene and semiconducting MoS2. Our device combines the superior spin transport properties of graphene with the strong spin–orbit coupling of MoS2 and allows switching of the spin current in the graphene channel between ON and OFF states by tuning the spin absorption into the MoS2 with a gate electrode. Our proposal holds potential for technologically relevant applications such as search engines or pattern recognition circuits, and opens possibilities towards electrical injection of spins into transition metal dichalcogenides and alike materials. By forming heterostructures of different layered two-dimensional materials, functional spintronic devices may be built by exploiting the materials’ different spin-orbit coupling and spin transport properties. Here, the authors demonstrate a spin switch in a gated structure of graphene and MoS2.read more
Citations
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Journal ArticleDOI
Opportunities and challenges for spintronics in the microelectronics industry
Bernard Dieny,Ioan Lucian Prejbeanu,Kevin Garello,Pietro Gambardella,Paulo P. Freitas,R. Lehndorff,Wolfgang Raberg,Ursula Ebels,Sergej O. Demokritov,Johan Åkerman,Johan Åkerman,Alina M. Deac,Philipp Pirro,Christoph Adelmann,Abdelmadjid Anane,Andrii V. Chumak,Andrii V. Chumak,Atsufumi Hirohata,Stéphane Mangin,Sergio O. Valenzuela,Sergio O. Valenzuela,M. Cengiz Onbaşlı,Massimiliano d'Aquino,Guillaume Prenat,Giovanni Finocchio,Luis Lopez-Diaz,Roy W. Chantrell,Oksana Chubykalo-Fesenko,P. Bortolotti +28 more
TL;DR: In this article, the potential of spintronics in four key areas of application (memory, sensors, microwave devices, and logic devices) is examined and the challenges that need to be addressed in order to integrate spintronic materials and functionalities into mainstream microelectronic platforms.
Journal ArticleDOI
The 2017 Magnetism Roadmap
D. Sander,Sergio O. Valenzuela,Sergio O. Valenzuela,Denys Makarov,Christopher H. Marrows,Eric E. Fullerton,Peter Fischer,Peter Fischer,Jeffrey McCord,Paolo Vavassori,Stéphane Mangin,Philipp Pirro,Burkard Hillebrands,Andrew D. Kent,Tomas Jungwirth,Tomas Jungwirth,Oliver Gutfleisch,CheolGi Kim,Andreas Berger +18 more
TL;DR: The 2017 Magnetism Roadmap as mentioned in this paper is the most recent edition of the magnetism roadmap, which is intended to provide a reference point and guideline for emerging research directions in modern magnetism.
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Two-dimensional spintronics for low-power electronics
TL;DR: This Review Article examines the development of two-dimensional spintronics for low-power electronics, exploring potential devices and circuits, as well as the challenges that exist in delivering practical applications.
Journal ArticleDOI
Colloquium: Spintronics in graphene and other two-dimensional materials
TL;DR: In this paper, the authors give an overview of the developing field of spintronics and outline the experimental and theoretical state-of-the-art of the art. But their focus is on van der Waals heterostructures, which consist of stacks of two-dimensional materials in precisely controlled order.
References
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TL;DR: Because monolayer MoS(2) has a direct bandgap, it can be used to construct interband tunnel FETs, which offer lower power consumption than classical transistors, and could also complement graphene in applications that require thin transparent semiconductors, such as optoelectronics and energy harvesting.
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Van der Waals heterostructures
TL;DR: With steady improvement in fabrication techniques and using graphene’s springboard, van der Waals heterostructures should develop into a large field of their own.