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Manipulation of the spin-states of a quantum dot by purely electrical means is a highly desirable property of fundamental importance for the development of spintronic devices such as spin-filters, spin-transistors and single-spin memory as…

Mesoscale and Nanoscale Physics · Physics 2008-10-20 J. R. Hauptmann , J. Paaske , P. E. Lindelof

We show that electrons recolliding with the ionic core upon tunnel ionization of noble gas atoms driven by a strong circularly polarized laser field in combination with a counter-rotating second harmonic are spin polarized and that their…

Atomic Physics · Physics 2017-08-02 David Ayuso , Álvaro Jiménez-Galán , Felipe Morales , Misha Ivanov , Olga Smirnova

Spin-polarization is known to lead to important {\it magnetic} and {\it optical} effects in open-shell atoms and elemental solids, but has rarely been implicated in controlling {\it structural} selectivity in compounds and alloys. Here we…

mtrl-th · Physics 2009-10-28 Z. W. Lu , B. M. Klein , A. Zunger

Electrical injection in organic semiconductors is a key prerequisite for the realization of organic spintronics. Using density-functional theory calculations we report the effect of electron transfer into the organic molecule Alq$_3$. Our…

Materials Science · Physics 2015-05-19 Kartick Tarafder , Biplab Sanyal , Peter M. Oppeneer

Controlling the magnetic properties of nanosystems by an electric field offers a number of advantages for spintronics applications. Using the noncollinear Alexander-Anderson model, we have shown that the interaction of localized magnetic…

Computational Physics · Physics 2026-05-13 Yaxin Sun , I. S. Lobanov , Jiahao Su , Ho-Kin Tang , V. M. Uzdin

We report the direct measurement of antiferromagnetic spin polarization at the oxygen sites in the multiferroic TbMn2O5, through resonant soft x-ray magnetic scattering. This supports recent theoretical models suggesting that the oxygen…

We study spin-dependent diffusive transport in the presence of a tunable spin-orbit (SO) interaction in a two-dimensional electron system. The spin precession of an electron in the SO coupling field is expressed in terms of a covariant…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Yaroslav Tserkovnyak , Shimul Akhanjee

Controlling magnetism using voltage is highly desired for applications, but remains challenging due to fundamental contradiction between polarity and magnetism. Here we propose a mechanism to manipulate magnetic domain walls in…

Materials Science · Physics 2021-03-22 Jun Chen , Shuai Dong

The spin-orbit torque, a torque induced by a charge current flowing through the heavy-metal conducting layer with strong spin-orbit interactions, provides an efficient way to control the magnetization direction in heavy-metal/ferromagnet…

Among spin-crossover complexes, Fe-porphyrin (FeP) stands out for molecular spintronic applications: An intricate, yet favourable balance between ligand fields, charge transfer, and the Coulomb interaction makes FeP highly manipulable,…

Strongly Correlated Electrons · Physics 2021-09-03 Sumanta Bhandary , Jan M. Tomczak , Angelo Valli

In a quantum Hall ferromagnet, the spin polarization of the two-dimensional electron system can be dynamically transferred to nuclear spins in its vicinity through the hyperfine interaction. The resulting nuclear field typically acts back…

Polarization, the precession direction with respect to the background magnetization, is an intrinsic degree of freedom of spin wave. Introducing symmetry breaking mechanisms lies in the heart of lifting the degeneracy between polarized spin…

Mesoscale and Nanoscale Physics · Physics 2022-05-31 Hongbin Wu , Jin Lan

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…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. Cottet , T. Kontos , W. Belzig , C. Schonenberger , C. Bruder

The electrical injection of spin polarized electrons in a semiconductor can be achieved in principle by driving a current from a ferromagnetic metal, where current is known to be significantly spin polarized, into the semiconductor via…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. T. Filip , B. H. Hoving , F. J. Jedema , B. J. van Wees

We study the formation and dynamics of dipolar rings composed by microscopic ferromagnetic ellipsoids, which self-assemble in water by switching the direction of the applied field. We show how to manipulate these fragile structures and…

Soft Condensed Matter · Physics 2016-08-30 Fernando Martinez-Pedrero , Andrejs Cebers , Pietro Tierno

Whereas spintronics brings the spin degree of freedom to electronic devices, molecular/organic electronics adds the opportunity to play with the chemical versatility. Here we show how, as a contender to commonly used inorganic materials,…

Spin-driven multiferroics exhibit strong magnetoelectric coupling, with notable polarization changes under a magnetic field, but these effects are usually limited to high-Z magnetic insulators with low electronic polarization. In this work,…

Materials Science · Physics 2024-12-31 Ranquan Cao , Ruizhi Dong , Ruixiang Fei , Yugui Yao

The ability to design and control the spin and charge order of low dimensional materials on the molecular scale offers an intriguing pathway towards the miniaturization of spintronic technology towards the nanometer scale. In this work, we…

Our first-principles study has revealed unexpected spin polarization of the Pd(001) substrate in contact with antiferromagnetic CoO overlayers. We give an evidence that the ferromagnetism of Pd is caused by the zigzag positions of Co atoms…

Materials Science · Physics 2015-02-19 S. K. Saha , V. S. Stepanyuk , J. Kirschner

The design of large-scale electronic circuits that are entirely spintronics-driven requires a current source that is highly spin-polarised at and beyond room temperature, cheap to build, efficient at the nanoscale and straightforward to…