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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.…

Mesoscale and Nanoscale Physics · Physics 2023-06-21 Supriyo Bandyopadhyay

We propose a heterostructure device comprised of magnets and piezoelectrics that significantly improves the delay and the energy dissipation of an all-spin logic (ASL) device. This paper studies and models the physics of the device,…

We study spin accumulation in an aluminium island, in which the injection of a spin current and the detection of the spin accumulation are done by means of four cobalt electrodes that connect to the island through transparent tunnel…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. V. Costache , M. Zaffalon , B. J. van Wees

The nanomechanical single-electron shuttle is a resonant system in which a suspended metallic island oscillates between and impacts at two electrodes. This setup holds promise for one-by-one electron transport and the establishment of an…

Mesoscale and Nanoscale Physics · Physics 2013-02-21 Michael J. Moeckel , Darren R. Southworth , Eva M. Weig , Florian Marquardt

We present theoretical description of the precessional switching processes induced by simultaneous application of spin-polarized current and external magnetic field to antiferromagnetic component of the "pinned" layer. We found stability…

Other Condensed Matter · Physics 2013-05-29 Helen V. Gomonay , Vadim M. Loktev

We study spin switching effects in finite-size superconducting multivalve structures. We examine $\rm F_1F_2SF_3$ and $\rm F_1F_2SF_3F_4$ hybrids where a singlet superconductor ($\rm S$) layer is sandwiched among ferromagnet ($\rm F$)…

Superconductivity · Physics 2018-03-09 Mohammad Alidoust , Klaus Halterman

In easy-plane magnets, the spin superfluid phase was predicted to facilitate coherent spin transport. So far, experimental evidence remains elusive. In this Letter, we propose an indirect way to sense this effect via the spin superfluid…

Mesoscale and Nanoscale Physics · Physics 2025-09-22 Yanyan Zhu , Eric Kleinherbers , Leonid Levitov , Yaroslav Tserkovnyak

We discuss the operation of the superconductor - insulator - normal-metal - insulator - superconductor (SINIS) turnstile. This voltage-biased hybrid single-electron transistor (SET) provides current quantization even with only one…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Antti Kemppinen , Matthias Meschke , Mikko Möttönen , Dmitri V. Averin , Jukka P. Pekola

We study a simple microscopic model for thin, ferromagnetic, metallic layers on semi-infinite bulk superconductor. We find that for certain values of the exchange spliting, on the ferromagnetic side, the ground states of such structures…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 M. Krawiec , B. L. Gyorffy , J. F. Annett

We study the scattering of the Dirac electrons by a point-like nonmagnetic impurity on the surface of a topological insulator, driven by a time-periodic gate voltage. It is found that, due to the doublet degenerate crossing points of…

Mesoscale and Nanoscale Physics · Physics 2019-10-15 Ming-Xun Deng , R. Ma , Wei Luo , R. Shen , L. Sheng , D. Y. Xing

Spintronics uses spins, the intrinsic angular momentum of electrons, as an alternative for the electron charge. Its long-term goal is in the development of beyond-Moore low dissipation technology devices. Recent progress demonstrated the…

Mesoscale and Nanoscale Physics · Physics 2018-09-14 R. Lebrun , A. Ross , S. A. Bender , A. Qaiumzadeh , L. Baldrati , J. Cramer , A. Brataas , R. A. Duine , M. Kläui

Superconducting spintronics is based on the creation of spin-triplet Cooper pairs in ferromagnet-superconductor (F-S) hybrid junctions. Previous proposals to manipulate spin-polarized supercurrents on-demand typically require the ability to…

Mesoscale and Nanoscale Physics · Physics 2020-05-06 Felix Keidel , Sun-Yong Hwang , Björn Trauzettel , Björn Sothmann , Pablo Burset

A superconductor with a spin-split excitation spectrum behaves as an ideal ferromagnetic spin-injector in a tunneling junction. It was theoretical predicted that the combination of two such spin-split superconductors with independently…

Superconductivity · Physics 2018-10-18 G. De Simoni , E. Strambini , J. S. Moodera , F. S. Bergeret , F. Giazotto

Solid-state topological insulating phases, characterized by spin-momentum locked edge modes, provide a powerful route for spin and charge manipulation in electronic devices. We propose to control charge and spin transport in the helical…

Mesoscale and Nanoscale Physics · Physics 2013-03-01 Paolo Michetti , Björn Trauzettel

Ballistic spin transport through waveguides, with symmetric or asymmetric double stubs attached to them periodically, is studied systematically in the presence of a weak spin-orbit coupling that makes the electrons precess. By an…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 X. F. Wang , P. Vasilopoulos , F. M. Peeters

We introduce a spinful variant of the Sachdev-Ye-Kitaev model with an effective time reversal symmetry, which can be solved exactly in the limit of a large number $N$ of degrees of freedom. At low temperature, its phase diagram includes a…

Strongly Correlated Electrons · Physics 2021-07-28 Étienne Lantagne-Hurtubise , Vedangi Pathak , Sharmistha Sahoo , Marcel Franz

We describe a method of controlling the spin wave spectra dynamically in a uniform nanostripe waveguide through spin-polarized currents. A stable periodic magnetization structure is observed when the current flows vertically through the…

Materials Science · Physics 2015-06-22 Qi Wang , Huaiwu Zhang , Xiaoli Tang , Hans Fangohr , Feiming Bai , Zhiyong Zhong

Topological insulators provide a new platform for spintronics due to the spin texture of the surface states that are topologically robust against elastic backscattering. Here, we report on an investigation of the measured voltage obtained…

Mesoscale and Nanoscale Physics · Physics 2015-11-05 E. K. de Vries , A. M. Kamerbeek , N. Koirala , M. Brahlek , M. Salehi , S. Oh , B. J. van Wees , T. Banerjee

We have used a superconducting single-electron transistor as a DC-electrometer that is strongly coupled to the metal island of another transistor. With this set-up, it is possible to directly measure the charge distribution on this island.…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 C. P. Heij , P. Hadley , J. E. Mooij

The superconducting version of a diode effect has been the subject of extensive research in the past few years. So far, the focus has almost exclusively been on charge transport, but a natural question is whether it is possible to obtain…

Superconductivity · Physics 2025-08-06 Chi Sun , Johanne Bratland Tjernshaugen , Jacob Linder
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