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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Explore of exfoliable multifunctional high-k two-dimensional oxides
TL;DR: In this article , the authors identify dozens of binary 2D oxides by screening potentially exfoliable bulk metal oxides despite of their non-layered structures followed by simulation of the exfoliation process.
Proceedings ArticleDOI
Optical manipulation and electrical control of valley pseudo-spins in atomically thin semiconductors
Sanfeng Wu,Jason Ross,Chunming Huang,Nirmal Ghimire,Jiaqiang Yan,David Mandrus,Di Xiao,Wang Yao,David Cobden,Xiaodong Xu +9 more
TL;DR: In this paper, the authors review the experimental progress on the investigation of these pseudo-spins using atomically thin semiconductors (MoS2, MoSe2 etc.), which are either monolayer or bilayer group VI transition metal dichalcogenides.
Journal ArticleDOI
Enhancement of photoluminescence of monolayer transition metal dichalcogenide by subwavelength TiO2 grating
TL;DR: In this article , a combination structure of a gold film, titanium dioxide subwavelength gratings and monolayer transition metal dichalcogenide (TMDCs) is designed, which can greatly improve the photoluminescence efficiency of monolayers.
Journal ArticleDOI
Two-dimensional Materials in Curved Geometry
Minkyu Park,Sonny H. Rhim +1 more
TL;DR: In this paper, a two-dimensional system in a curved geometry is investigated in the framework of general relativity, and it is shown that the non-vanishing curvature which is inevitable from the curved geometry, opens a band gap, which is commonly interpreted as a pseudo-magnetic field.
Journal ArticleDOI
Electronic band structure engineering in InAs/InSbAs and InSb/InSbAs superlattice heterostructures
TL;DR: In this article, a detailed ab initio study of two superlattice heterostructures is presented, one component of which is a unit cell of CuPt ordered InSb/InSb_(0.5)As_( 0.5).
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.