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相关论文: Datta-Das transistor for atomtronic circuits using…

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We consider the electron transport in the Datta-Das spin transistor within the two-subband model taking into account the intra- and inter-subband spin-orbit (SO) interaction and study the influence of the inter-subband SO coupling on the…

介观与纳米尺度物理 · 物理学 2016-06-28 P. Wójcik , J. Adamowski

We show that a Spin Field Effect Transistor, realized with a semiconductor quantum wire channel sandwiched between half-metallic ferromagnetic contacts, can have Fano resonances in the transmission spectrum. These resonances appear because…

介观与纳米尺度物理 · 物理学 2009-11-13 J. Wan , M. Cahay , S. Bandyopadhyay

We propose a method to electrically control electron spins in donor-based qubits in silicon. By taking advantage of the hyperfine coupling difference between a single-donor and a two-donor quantum dot, spin rotation can be driven by…

介观与纳米尺度物理 · 物理学 2017-03-17 Yu Wang , Chin-Yi Chen , Gerhard Klimeck , Michelle Y. Simmons , Rajib Rahman

We report measurements of spin-dependent scattering of conduction electrons by neutral donors in an accumulation-mode field-effect transistor formed in isotopically enriched silicon. Spin-dependent scattering was detected using electrically…

材料科学 · 物理学 2009-11-13 C. C. Lo , J. Bokor , T. Schenkel , A. M. Tyryshkin , S. A. Lyon

The wave nature of electrons in semiconductor nanostructures results in spatial interference effects similar to those exhibited by coherent light. The presence of spin-orbit coupling renders interference in spin space and in real space…

介观与纳米尺度物理 · 物理学 2007-05-23 U. Zuelicke

The transport property of a lateral two-dimensional diluted magnetic semiconductor electron gas under a spatially periodic magnetic field is investigated theoretically. We find that the electron Fermi velocity along the modulation direction…

介观与纳米尺度物理 · 物理学 2007-05-23 W. Yang , Kai Chang , X. G. Wu , H. Z. Zheng

The notion of a spin field effect transistor, where transistor action is realized by manipulating the spin degree of freedom of charge carriers instead of the charge degree of freedom, has captivated researchers for at least three decades.…

介观与纳米尺度物理 · 物理学 2023-06-21 Supriyo Bandyopadhyay

It is revealed that in spin helix state of (001) quantum well system, strong suppression of D'yakonov-Perel' spin relaxation process occurs by an interplay between Rashba and Dresselhaus couplings over a wide range of Rashba coupling…

其他凝聚态物理 · 物理学 2009-11-13 Munekazu Ohno , Kanji Yoh

Spin-gapless semiconductors (SGSs) are a promising class of materials for spintronic applications, enabling functions beyond conventional electronics. This study introduces a novel design for multifunctional spintronic field-effect…

材料科学 · 物理学 2025-04-11 Ersoy Şaşıoğlu , Paul Bodewei , Nicki F. Hinsche , Ingrid Mertig

We theoretically investigate the thermoelectric properties of a spin-polarized two-dimensional electron gas hosting a Kondo adatom hybridized with an STM tip. Such a setup is treated within the single-impurity Anderson model in combination…

强关联电子 · 物理学 2014-11-25 A. C. Seridonio , E. C. Siqueira , R. Franco , J. Silva-Valencia , I. A. Shelykh , M. S. Figueira

Modulation-doped AlGaAs/GaAs heterostructures are utilized extensively in the study of quantum transport in nanostructures, but charge fluctuations associated with remote ionized dopants often produce deleterious effects. Electric…

介观与纳米尺度物理 · 物理学 2015-06-19 Sumit Mondal , Geoffrey C. Gardner , John D. Watson , Saeed Fallahi , Amir Yacoby , Michael J. Manfra

Linear in the wave-vector terms of an electron Hamiltonian play an important role in topological insulators and spintronic devices. Here we demonstrate how an external electric field controls the magnitude of a linear-in-K term in the…

介观与纳米尺度物理 · 物理学 2020-10-07 D. K. Loginov , P. A. Belov , V. G. Davydov , I. Ya. Gerlovin , I. V. Ignatiev , A. V. Kavokin

We propose and analyze a novel dual-gate Spin Field Effect Transistor (SpinFET) with half-metallic ferromagnetic source and drain contacts. The transistor has two gate pads that can be biased independently. It can be switched ON or OFF with…

介观与纳米尺度物理 · 物理学 2009-11-13 J. Wan , M. Cahay , S. Bandyopadhyay

In spin-based quantum information processing devices, the presence of control and detection circuitry can change the local environment of a spin by introducing strain and electric fields, altering its resonant frequencies. These resonance…

介观与纳米尺度物理 · 物理学 2018-04-18 J. J. Pla , A. Bienfait , G. Pica , J. Mansir , F. A. Mohiyaddin , Z. Zeng , Y. M. Niquet , A. Morello , T. Schenkel , J. J. L. Morton , P. Bertet

We propose, theoretically, a new type of quantum field effect transistor that operates purely on the flow of spin current in the absence of charge current. This spin field effect transistor (SFET) is constructed without any magnetic…

凝聚态物理 · 物理学 2009-11-07 Baigeng Wang , Jian Wang , Hong Guo

We fabricate a vertical spin metal-oxide-semiconductor field-effect transistor (spin-MOSFET) structure, which is composed of an epitaxial single-crystal heterostructure with a ferromagnetic-semiconductor GaMnAs source/drain, and investigate…

材料科学 · 物理学 2016-01-20 Toshiki Kanaki , Hirokatsu Asahara , Shinobu Ohya , Masaaki Tanaka

A model of the Datta-Das spin field-effect transistor is presented which, in addition to the Rashba interaction, takes into account the influence of bulk inversion asymmetry of zinc-blende semiconductors. In the presence of bulk inversion…

介观与纳米尺度物理 · 物理学 2009-11-10 A. Łusakowski , J. Wróbel , T. Dietl

We consider electronic current transport through a ballistic one-dimensional quantum wire connected to two ferromagnetic leads. We study the effects of the spin-dependence of interfacial phase shifts (SDIPS) acquired by electrons upon…

介观与纳米尺度物理 · 物理学 2007-05-23 A. Cottet , T. Kontos , W. Belzig , C. Schonenberger , C. Bruder

There is significant current interest in spintronic devices fashioned after a spin analog of the electro-optic modulator proposed by Datta and Das [Appl. Phys. Lett., \underline{56}, 665 (1990)]. In their modulator, the ``modulation'' of…

介观与纳米尺度物理 · 物理学 2009-11-10 S. Bandyopadhyay , M. Cahay

We apply the full power of modern electronic band structure engineering and epitaxial heterostructures to design a transistor that can sense and control a single donor electron spin. Spin resonance transistors may form the technological…