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This paper proposes an advanced control strategy to eliminate both current sharing error and DC circulating current caused by line impedance mismatched and measurement errors in islanded AC microgrid system. The proposed adaptive virtual…

Systems and Control · Electrical Eng. & Systems 2024-12-23 Quoc Nam Trinh , Bang Nguyen , Rob Hovsapian

A theoretical proposal for realizing and detecting spin supercurrent in an isotropic antiferromagnetic insulator is reported. Superfluid spin transport is achieved by inserting the antiferromagnet between two metallic reservoirs and…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 So Takei , Bertrand I. Halperin , Amir Yacoby , Yaroslav Tserkovnyak

We propose a novel spin filter based on a graphene nanoring fabricated above a ferromagnetic strip. The exchange interaction between the magnetic moments of the ions in the ferromagnet and the electron spin splits the electronic states, and…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Javier Munárriz , Francisco Domínguez-Adame , Pedro A. Orellana , Andrey V. Malyshev

We evidence the possibility for coherent electrical manipulation of the spin orientation of topologically protected edge states in a low-symmetry quantum spin Hall insulator. By using a combination of ab-initio simulations, symmetry-based…

We analyze spin-dependent transport through a spin-diode in the presence of spin-flip and under influence of temperature bias. The current polarization and the spin accumulation are investigated in detail by means of reduced density matrix.…

Mesoscale and Nanoscale Physics · Physics 2012-04-10 M. Bagheri Tagani , H. Rahimpour Soleimani

We describe a method to control and detect in single-shot the electron spin state of an individual donor in silicon with greatly enhanced sensitivity. A silicon-based Single-Electron Transistor (SET) allows for spin-dependent tunneling of…

Mesoscale and Nanoscale Physics · Physics 2009-09-11 A. Morello , C. C. Escott , H. Huebl , L. H. Willems van Beveren , L. C. L. Hollenberg , D. N. Jamieson , A. S. Dzurak , R. G. Clark

We demonstrate the fabrication of a single electron transistor device based on a single ultra-small silicon quantum dot connected to a gold break junction with a nanometer scale separation. The gold break junction is created through a…

Mesoscale and Nanoscale Physics · Physics 2018-04-04 Zhanbin Bai , Xiangkai Liu , Zhen Lian , Kangkang Zhang , Guanghou Wang , Su-Fei Shi , Xiaodong Pi , Fengqi Song

We study the spin transport properties of the non-centrosymmetric superconductor with time-reversal-symmetry where spin-triplet $(p_{x} \pm i p_{y})$-wave and spin-singlet s-wave pair potential can mix each other. We show that when the…

Superconductivity · Physics 2009-11-13 Yukio Tanaka , Takehito Yokoyama , Alexander V. Balatsky , Naoto Nagaosa

We have investigated the static, charge-trapping properties of a hybrid superconductor---normal metal electron turnstile embedded into a high-ohmic environment. The device includes a local Cr resistor on one side of the turnstile, and a…

Superconductivity · Physics 2015-05-20 Sergey V Lotkhov , Olli-Pentti Saira , Jukka P Pekola , Alexander B Zorin

We have suspended an Al based single-electron transistor whose island can resonate freely between the source and drain leads forming the clamps. In addition to the regular side gate, a bottom gate with a larger capacitance to the SET island…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 Yu. A. Pashkin , T. F. Li , J. P. Pekola , O. Astafiev , D. A. Knyazev , F. Hoehne , H. Im , Y. Nakamura , J. S. Tsai

The electron transmission $T$ is evaluated through waveguides, in which the strength of the spin-orbit interaction(SOI) $\alpha$ is varied periodically, using the transfer-matrix technique. It is shown that $T$ exhibits a {\it…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 X. F. Wang , P. Vasilopoulos

The basis of synchronous manipulation of individual electrons in solid-state devices was laid by the rise of single-electronics about two decades ago. Ultra-small structures in a low temperature environment form an ideal domain of…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Jukka P. Pekola , Juha J. Vartiainen , Mikko Mottonen , Olli-Pentti Saira , Matthias Meschke , Dmitri V. Averin

Owing to the unique features of low Gilbert damping, long spin-diffusion lengths and zero Ohmic losses, magnetic insulators are promising candidate materials for next-generation spintronic applications. However, due to the localized…

We study the time-development processes of spin and charge transport phenomena in a topological Dirac semimetal attached to a ferromagnetic insulator with a precessing magnetization. Compared to conventional normal metals, topological Dirac…

Materials Science · Physics 2020-01-01 Takahiro Misawa , Kentaro Nomura

A simple and highly reproducible single electron transistor (SET) has been fabricated using gated silicon nanowires. The structure is a metal-oxide-semiconductor field-effect transistor made on silicon-on-insulator thin films. The channel…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. Hofheinz , X. Jehl , M. Sanquer , G. Molas , M. Vinet , S. Deleonibus

We propose a superconducting spin-triplet valve, which consists of a superconductor and an itinerant magnetic material, with the magnet showing an intrinsic non-collinear order characterized by a wave vector that may be aligned in a few…

Superconductivity · Physics 2017-10-24 N. G. Pugach , M. Safonchik , T. Champel , M. E. Zhitomirsky , E. Lähderanta , M. Eschrig , C. Lacroix

Spin-split superconductors offer new functionality compared to conventional superconductors such as diode-effects and efficient thermoelectricity. The superconducting state can nevertheless only withstand a small amount of spin-splitting.…

Superconductivity · Physics 2024-05-15 Johanne Bratland Tjernshaugen , Morten Amundsen , Jacob Linder

We consider a quasi one-dimensional configuration consisting of two small pieces of ferromagnetic material separated by a metallic one and contacted by two metallic leads. A spin-polarized current is injected from one lead. Our goal is to…

Mesoscale and Nanoscale Physics · Physics 2007-06-13 J. Peguiron , M. -S. Choi , C. Bruder

Introducing, observing, and manipulating individual impurities coupled to a host material offers the opportunity to create new device concepts based on single spin and charge states. Because of potential applications in spintronics and…

Mesoscale and Nanoscale Physics · Physics 2016-09-29 Paolo Sessi , Thomas Bathon , Konstantin A. Kokh , Oleg E. Tereshchenko , Matthias Bode

Studying the influence of breaking time-reversal symmetry on topological insulator surface states is an important problem of current interest in condensed matter physics and could provide a route toward proof-of-concept spintronic devices…

Mesoscale and Nanoscale Physics · Physics 2019-03-15 Joon Sue Lee , Anthony Richardella , Robert D. Fraleigh , Chao-xing Liu , Weiwei Zhao , Nitin Samarth
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