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We study non-equilibrium magneto-transport through a single electron transistor or an impurity. We find that due to spin-flip transitions, generated by the spin-orbit interaction, the spectral density of the tunneling current fluctuations…

Condensed Matter · Physics 2007-05-23 D. Mozyrsky , L. Fedichkin , S. A. Gurvitz , G. P. Berman

We demonstrate microwave manipulation of the spin states of electrically injected spin-polarized electrons in silicon. Although the silicon channel is bounded by ferromagnetic metal films, we show that moderate microwave power can be…

Mesoscale and Nanoscale Physics · Physics 2013-12-16 C. C. Lo , J. Li , I. Appelbaum , J. J. L. Morton

An electron within a mesoscopic (quantum-coherent) spintronic structure is described by a single wave function which, in the presence of both charge scattering and spin-orbit coupling, encodes an information about {\em entanglement} of its…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Branislav K. Nikolic

Low-temperature scanning tunneling spectroscopy allows to probe the electronic properties of clusters at surfaces with unprecedented accuracy. By means of quantum transport theory, using realistic tunneling tips, we obtain conductance…

Other Condensed Matter · Physics 2011-11-09 Mario De Menech , Ulf Saalmann , Martin E. Garcia

In this paper we review the recent field of organic spintronics, where organic materials are applied as a medium to transport and control spin-polarized signals. The contacts for injecting and detecting spins are formed by metals, oxides,…

Mesoscale and Nanoscale Physics · Physics 2007-06-13 W. J. M. Naber , S. Faez , W. G. van der Wiel

We study theoretically the spin transport in a nonmagnetic metal connected to ferromagnetic injector and detector electrodes. We derive a general expression for the spin accumulation signal which covers from the metallic to the tunneling…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 S. Takahashi , S. Maekawa

We present transport measurements on a lateral double dot produced by combining local anodic oxidation and electron beam lithography. We investigate the tunability of our device and demonstrate, that we can switch between capacitive and…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. C. Rogge , C. Fuhner , U. F. Keyser , R. J. Haug

We address local inelastic scattering from vibrational impurity adsorbed onto graphene and the evolution of the local density of electron states near the impurity from weak to strong coupling regime. For weak coupling the local electronic…

Mesoscale and Nanoscale Physics · Physics 2013-06-10 J. Fransson , J. -H. She , L. Pietronero , A. V. Balatsky

Motivated by recent experiments, where the tunnel magnetoresitance (TMR) of a spin valve was measured locally, we theoretically study the distribution of TMR along the surface of magnetized electrodes. We show that, even in the absence of…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 R. C. Roundy , D. Nemirovsky , V. Kagalovsky , M. E. Raikh

The prediction and realization of magnetic excitations driven by electrical currents via the spin transfer torque effect, enables novel magnetic nano-devices where spin-waves can be used to process and store information. The functional…

Mesoscale and Nanoscale Physics · Physics 2016-08-09 S. Bonetti , R. Kukreja , Z. Chen , F. Macià , J. M. Hernàndez , A. Eklund , D. Backes , J. Frisch , J. Katine , G. Malm , S. Urazhdin , A. D. Kent , J. Stöhr , H. Ohldag , H. A. Dürr

We present the first microscopic model for chirality-induced spin selectivity effect in electron-transfer, in which the internal degrees of freedom of the chiral bridge are explicitly included. By exactly solving this model on short chiral…

Mesoscale and Nanoscale Physics · Physics 2024-10-08 A. Chiesa , E. Garlatti , M. Mezzadri , L. Celada , R. Sessoli , M. R. Wasielewski , R. Bittl , P. Santini , S. Carretta

Recent experimental breakthroughs have demonstrated that the electron spin in silicon can be reliably injected and detected as well as transferred over distances exceeding 1 mm. We propose an on-chip communication paradigm which is based on…

Materials Science · Physics 2011-09-23 Hanan Dery , Yang Song , Pengke Li , Igor Zutic

A comprehensive theory is presented for the voltage, temperature, and spatial dependence of the tunneling current between a scanning tunneling microscope (STM) tip and a metallic surface with an individual magnetic adatom. Modeling the…

Strongly Correlated Electrons · Physics 2009-10-31 Avraham Schiller , Selman Hershfield

Progress in spintronics has been aided by characterization tools tailored to certain archetypical materials. New device structures and materials will require characterization tools that are material independent, provide sufficient…

Mesoscale and Nanoscale Physics · Physics 2015-12-17 V. P. Bhallamudi , C. S. Wolfe , V. P. Amin , D. E. Labanowski , A. J. Berger , D. Stroud , J. Sinova , P. C. Hammel

The present article reviews recent experimental investigations of spin dynamics in iron-based superconductors and their parent compounds by means of inelastic neutron scattering. It mainly focuses on the most contemporary developments in…

Superconductivity · Physics 2016-01-05 Dmytro S. Inosov

Full insight into the dynamics of a coupled quantum system depends on the ability to follow the effect of a local excitation in real-time. Here, we trace the coherent evolution of a pair of coupled atomic spins by means of scanning…

The paper by A. A. Shashkin et al. [cond-mat/0409100] reports measurements of the thermodynamic magnetization of two-dimensional electrons in silicon. Although the experimental data is very similar to that reported by us more then two years…

Strongly Correlated Electrons · Physics 2007-05-23 M. Reznikov , U. Sivan

Using scanning Kerr microscopy, we directly acquire two-dimensional images of spin-polarized electrons flowing laterally in bulk epilayers of n:GaAs. Optical injection provides a local dc source of polarized electrons, whose subsequent…

Materials Science · Physics 2009-11-10 S. A. Crooker , D. L. Smith

Using one of the methods of quantum nonequilibrium statistical physics we have investigated the spin transport transverse to the normal metal/ferromagnetic insulator interface in hybrid nanostructures. An approximation of the effective…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 I. I. Lyapilin , M. S. Okorokov , V. V. Ustinov

We report electrical measurements of the current-induced spin polarization of the surface current in topological insulator devices where contributions from bulk and surface conduction can be disen- tangled by electrical gating. The devices…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 Joon Sue Lee , Anthony Richardella , Danielle Reifsnyder Hickey , K. Andre Mkhoyan , Nitin Samarth