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
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Effects of van der Waals interaction and electric field on the electronic structure of bilayer MoS2
TL;DR: The spin orbit-coupled electronic structure of bilayer MoS2 has been investigated using the first-principle density functional theory and it is found that the van der Waals interaction as well as the interlayer distance has significant effects on the band structure.
Journal ArticleDOI
Charge carrier injection and transport engineering in two-dimensional transition metal dichalcogenides
TL;DR: This review intertwines current engineering strategies tailoring the carrier injection and carrier transport of two-dimensional transition metal dichalcogenides toward efficient electronic devices.
Journal ArticleDOI
Momentum-Dark Intervalley Exciton in Monolayer Tungsten Diselenide Brightened via Chiral Phonon.
Zhipeng Li,Tianmeng Wang,Chenhao Jin,Zhengguang Lu,Zhen Lian,Yuze Meng,Yuze Meng,Mark Blei,Mengnan Gao,Takashi Taniguchi,Kenji Watanabe,Tianhui Ren,Ting Cao,Sefaattin Tongay,Dmitry Smirnov,Lifa Zhang,Su-Fei Shi +16 more
TL;DR: This work reports the unambiguous identification of the momentum-dark, intervalley exciton in monolayer WSe2 through low-temperature magneto-photoluminescence (PL) spectra and adds an exciting quasiparticle for valleytronics.
Journal ArticleDOI
Synthesis of Co‐Doped MoS2 Monolayers with Enhanced Valley Splitting
Jiadong Zhou,Junhao Lin,Junhao Lin,Hunter Sims,Hunter Sims,Chongyun Jiang,Chongyun Jiang,Chunxiao Cong,Chunxiao Cong,John A. Brehm,John A. Brehm,Zhaowei Zhang,Lin Niu,Yu Chen,Yao Zhou,Yanlong Wang,Fucai Liu,Chao Zhu,Ting Yu,Kazu Suenaga,Rohan Mishra,Sokrates T. Pantelides,Sokrates T. Pantelides,Zhen-Gang Zhu,Weibo Gao,Zheng Liu,Zheng Liu,Wu Zhou +27 more
TL;DR: A new method to control the valley pseudospin via magnetic dopants in layered semiconducting materials is demonstrated, paving the way toward magneto-optical and spintronic devices.
Journal ArticleDOI
Emerging ferroelectric transistors with nanoscale channel materials: the possibilities, the limitations
TL;DR: This paper reviews two rapidly progressing branches in the field of ferroelectric transistors, which employ two distinct classes of nanoscale electronic materials as the conducting channel, the two-dimensional electron gas graphene and the strongly correlated transition metal oxide thin films.
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.