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We simulate the electron transport in vertical bi-layer nanowire which can be fabricated in molecular beam epitaxy process with lateral confinement potential formed by means of cleaved overgrowth or surface oxidization methods giving…

介观与纳米尺度物理 · 物理学 2016-01-20 T. Chwiej

Non-reciprocal charge transport that is strongly associated with the structural or magnetic chirality of the quantum materials system is one of the most exotic properties of condensed matter physics. Here, using magnetic alloys film…

材料科学 · 物理学 2022-06-20 K. K. Meng , K. Wang , N. N. Zhang , Z. G. Fu , J. K. Chen , Y. Wu , X. G. Xu , J. Miao , Y. Jiang

Research in spintronics often involves generation of heat in nanoscale magnetic systems. This heat generation can be intentional, as when studying effects created by an external applied temperature difference, or unintentional, coming as a…

介观与纳米尺度物理 · 物理学 2022-11-15 Barry L Zink

We demonstrate theoretically that the spin polarization of current can be electrically amplified within nonmagnetic semiconductors by exploiting the fact the spin current, compared to the charge current, is weakly perturbed by electric…

介观与纳米尺度物理 · 物理学 2007-05-23 S. -W. Jung , H. -W. Lee

Towards next-generation spintronics devices, such as computer memories and logic chips, it is necessary to satisfy high thermal stability, low-power consumption and high spin-polarization simultaneously. Here, from first-principles, we…

材料科学 · 物理学 2014-11-04 Zhaoqiang Bai , Lei Shen , Yongqing Cai , Qingyun Wu , Minggang Zeng , Guchang Han , Yuan Ping Feng

Hyperpolarized nanoparticles (NPs) offer high polarization levels with room temperature relaxation times exceeding half an hour. In this work, we demonstrate that the achievable hyperpolarization enhancement and relaxation (decay) time at…

Heterointerfaces have led to the discovery of novel electronic and magnetic states because of their strongly entangled electronic degrees of freedom. Single-phase chromium compounds always exhibit antiferromagnetism following the prediction…

We evaluate the non-equilibrium spin polarization induced by an applied electric field for a tight-binding model of electron states at oxides interfaces in LAO/STO heterostructures. By a combination of analytic and numerical approaches we…

介观与纳米尺度物理 · 物理学 2018-08-29 Goetz Seibold , Sergio Caprara , Roberto Raimondi

The hyperfine coupling between the spin of a charge carrier and the nuclear spin bath is a predominant channel for the carrier spin relaxation in many organic semiconductors. We theoretically investigate the hyperfine-induced spin…

介观与纳米尺度物理 · 物理学 2015-09-30 V. V. Mkhitaryan , V. V. Dobrovitski

Fabricating room-temperature ferromagnetic insulators, which are crucial candidates for next-generation dissipation-free quantum and spintronic devices, remains a significant challenge. In this Letter, we report on the epitaxial synthesis…

The tunability and spatial precision of paramagnetic molecules makes them attractive for quantum sensing. However, usual microwave-based detection methods have poor temporal and spatial resolution, and optical methods compatible with…

量子物理 · 物理学 2024-07-30 Erica Sutcliffe , Nathanael P. Kazmierczak , Ryan G. Hadt

Recent experiments in exciton-polariton systems have provided high-precision measurements of the value of the polariton-polariton interaction constant, which is a key parameter that governs the nonlinear dynamics of polariton condensates…

介观与纳米尺度物理 · 物理学 2021-12-15 Guangyao Li , Meera M. Parish , Jesper Levinsen

We propose a spintronic device to generate spin polarization in a mesoscopic region by purely electric means. We show that the spin Hall effect in combination with the stirring effect are sufficient to induce measurable spin polarization in…

介观与纳米尺度物理 · 物理学 2009-07-27 Yu. V. Pershin , N. A. Sinitsyn , A. Kogan , A. Saxena , D. L. Smith

The understanding of orbital hybridization and spin-polarization at the organic-ferromagnetic interface is essential in the search for efficient hybrid spintronic devices. Here, using first-principles calculations, we report a systematic…

First-principles density functional calculations demonstrate that a spin-polarized two-dimensional conducting state can be realized at the interface between two non-magnetic band insulators. The (001) surface of the diamagnetic insulator…

材料科学 · 物理学 2011-10-13 J. D. Burton , E. Y. Tsymbal

Spintronics aims to exploit the spin degree of freedom in solid state devices for data storage and information processing technologies. The fundamental spintronic device concepts such as creation, manipulation and detection of spin…

介观与纳米尺度物理 · 物理学 2016-10-21 André Dankert , Saroj P. Dash

Nanographene-based magnetism at interfaces offers an avenue to designer quantum materials towards novel phases of matter and atomic-scale applications. Key to spintronics applications at the nanoscale is bistable spin-crossover which…

The static and dynamic properties of spin-polarons in La-doped $CaMnO_3$ are explored theoretically, by means of an effective low energy Hamiltonian. All parameters from the Hamiltoniain are evaluated from first principles theory, without…

材料科学 · 物理学 2018-05-08 N. Bondarenko , J. Chico , A. Bergman , N. V. Skorodumova , O. Eriksson

We propose a scheme to realize a pseudospin-$1/2$ model of the $^{1}\Sigma(v=0)$ bialkali polar molecules with the spin states corresponding to two sublevels of the first excited rotational level. We show that the effective dipole-dipole…

量子气体 · 物理学 2015-09-30 Y. Deng , S. Yi

Spin transport in superconductors offers a compelling platform to merge the dissipationless nature of superconductivity with the functional promise of spin-based electronics. A significant challenge in achieving spin polarisation in…

介观与纳米尺度物理 · 物理学 2025-05-19 Aleix Barrera , Huidong Li , Thomas Gunkel , Jordi Alcalà , Silvia Damerio , Can Onur Avci , Anna Palau