Journal ArticleDOI
Zeeman-type spin splitting controlled by an electric field
Hongtao Yuan,Hongtao Yuan,Mohammad Saeed Bahramy,Mohammad Saeed Bahramy,K. Morimoto,Sanfeng Wu,Kentaro Nomura,Kentaro Nomura,Bohm-Jung Yang,Hidekazu Shimotani,Hidekazu Shimotani,Ryuji Suzuki,Minglin Toh,Christian Kloc,Xiaodong Xu,Ryotaro Arita,Ryotaro Arita,Naoto Nagaosa,Naoto Nagaosa,Yoshihiro Iwasa,Yoshihiro Iwasa +20 more
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TLDR
In this paper, it was shown that spin polarization can also be achieved without the need for magnetism by using the unique crystal symmetry of tungsten selenide, which creates a Zeeman-like effect when a monolayer of the material is exposed to an external electric field.Abstract:
A magnetic field can lift the spin degeneracy of electrons. This Zeeman effect is an important route to generating the spin polarization required for spintronics. It is now shown that such polarization can also be achieved without the need for magnetism. The unique crystal symmetry of tungsten selenide creates a Zeeman-like effect when a monolayer of the material is exposed to an external electric field.read more
Citations
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Gate-Optimized Thermoelectric Power Factor in Ultrathin WSe2 Single Crystals
Masaro Yoshida,Takahiko Iizuka,Yu Saito,Masaru Onga,Ryuji Suzuki,Yijin Zhang,Yoshihiro Iwasa,Yoshihiro Iwasa,Sunao Shimizu +8 more
TL;DR: An electric field tuning of the thermopower in ultrathin WSe2 single crystals over a wide range of carrier concentration by using electric double-layer (EDL) technique is reported.
Journal ArticleDOI
Symmetry-breaking induced large piezoelectricity in Janus tellurene materials.
TL;DR: The combination of the SOC-induced spin splitting and large piezoelectricity endows the Janus Te2Se structures with potential for applications in spintronics, flexible electronics and piezOElectric devices.
Journal ArticleDOI
Engineering symmetry breaking in 2D layered materials
Luojun Du,Tawfique Hasan,Andres Castellanos-Gomez,Gui-Bin Liu,Yugui Yao,Chun Ning Lau,Zhipei Sun +6 more
TL;DR: In this article, the state-of-the-art physical and chemical approaches to symmetry breaking of 2D layered materials and their heterostructures are discussed, and the perspectives on how these may lead to new physics and applications are discussed.
Journal ArticleDOI
Does p-type ohmic contact exist in WSe2–metal interfaces?
Yangyang Wang,Yangyang Wang,Ruo Xi Yang,Ruo Xi Yang,Ruge Quhe,Ruge Quhe,Hongxia Zhong,Hongxia Zhong,Linxiao Cong,Meng Ye,Zeyuan Ni,Zhigang Song,Jinbo Yang,Jun-jie Shi,Ju Li,Jing Lu +15 more
TL;DR: In this article, a comparative study of the interfacial properties between monolayer/bilayer (ML/BL) WSe2 and Sc, Al, Ag, Au, Pd, and Pt contacts is presented.
Journal ArticleDOI
Disorder engineering and conductivity dome in ReS2 with electrolyte gating.
Dmitry Ovchinnikov,Fernando Gargiulo,Adrien Allain,Diego Pasquier,Dumitru Dumcenco,Ching-Hwa Ho,Oleg V. Yazyev,Andras Kis +7 more
TL;DR: Theoretical calculations and a transport model indicate that the observed conductivity suppression can be explained by a combination of a narrow conduction band and Anderson localization due to electrolyte-induced disorder.
References
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Journal ArticleDOI
Generalized Gradient Approximation Made Simple
TL;DR: A simple derivation of a simple GGA is presented, in which all parameters (other than those in LSD) are fundamental constants, and only general features of the detailed construction underlying the Perdew-Wang 1991 (PW91) GGA are invoked.
Journal ArticleDOI
QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials
Paolo Giannozzi,Stefano Baroni,Stefano Baroni,Nicola Bonini,Matteo Calandra,Roberto Car,Carlo Cavazzoni,Davide Ceresoli,Guido L. Chiarotti,Matteo Cococcioni,Ismaila Dabo,Andrea Dal Corso,Andrea Dal Corso,Stefano de Gironcoli,Stefano de Gironcoli,Stefano Fabris,Stefano Fabris,Guido Fratesi,Ralph Gebauer,Ralph Gebauer,Uwe Gerstmann,Christos Gougoussis,Anton Kokalj,Michele Lazzeri,Layla Martin-Samos,Nicola Marzari,Francesco Mauri,Riccardo Mazzarello,Stefano Paolini,Alfredo Pasquarello,Lorenzo Paulatto,Lorenzo Paulatto,Carlo Sbraccia,Sandro Scandolo,Sandro Scandolo,Gabriele Sclauzero,Gabriele Sclauzero,Ari P. Seitsonen,Alexander Smogunov,Paolo Umari,Renata M. Wentzcovitch +40 more
TL;DR: QUANTUM ESPRESSO as discussed by the authors is an integrated suite of computer codes for electronic-structure calculations and materials modeling, based on density functional theory, plane waves, and pseudopotentials (norm-conserving, ultrasoft, and projector-augmented wave).
Journal ArticleDOI
Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
Paolo Giannozzi,Stefano Baroni,Nicola Bonini,Matteo Calandra,Roberto Car,Carlo Cavazzoni,Davide Ceresoli,Guido L. Chiarotti,Matteo Cococcioni,Ismaila Dabo,A. Dal Corso,Stefano Fabris,Guido Fratesi,S. de Gironcoli,Ralph Gebauer,U. Gerstmann,Christos Gougoussis,Anton Kokalj,Michele Lazzeri,Layla Martin-Samos,Nicola Marzari,Francesco Mauri,Riccardo Mazzarello,Stefano Paolini,Alfredo Pasquarello,Lorenzo Paulatto,Carlo Sbraccia,Sandro Scandolo,Gabriele Sclauzero,Ari P. Seitsonen,Alexander Smogunov,Paolo Umari,Renata M. Wentzcovitch +32 more
TL;DR: Quantum ESPRESSO as discussed by the authors is an integrated suite of computer codes for electronic-structure calculations and materials modeling, based on density functional theory, plane waves, and pseudopotentials (norm-conserving, ultrasoft, and projector-augmented wave).
Journal ArticleDOI
Spintronics: Fundamentals and applications
TL;DR: Spintronics, or spin electronics, involves the study of active control and manipulation of spin degrees of freedom in solid-state systems as discussed by the authors, where the primary focus is on the basic physical principles underlying the generation of carrier spin polarization, spin dynamics, and spin-polarized transport.
Journal ArticleDOI
Electronic analog of the electro‐optic modulator
Supriyo Datta,Biswajit Das +1 more
TL;DR: In this article, an electron wave analog of the electro-optic light modulator is proposed, where magnetized contacts are used to preferentially inject and detect specific spin orientations.