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Spintronics, which aims at exploiting the spin degree of freedom of carriers inside electronic devices, has a huge potential for quantum computation and dissipationless interconnects. Ideally, spin currents in spintronic devices should be…

材料科学 · 物理学 2014-04-02 F. Bottegoni , M. Celebrano , M. Bollani , P. Biagioni , G. Isella , F. Ciccacci , M. Finazzi

One of the most striking manifestations of electronic properties of topological insulators is the dependence of the photocurrent direction on the helicity of circularly polarized optical excitation. The helicity dependent photocurrents,…

First-principles scattering calculations are used to investigate spin transport through interfaces between diffusive nonmagnetic metals where the symmetry lowering leads to an enhancement of the effect of spin-orbit coupling (SOC) and to a…

介观与纳米尺度物理 · 物理学 2022-09-21 Kriti Gupta , Ruixi Liu , Rien J. H. Wesselink , Zhe Yuan , Paul J. Kelly

Because of its fascinating electronic properties, graphene is expected to produce breakthroughs in many areas of nanoelectronics. For spintronics, its key advantage is the expected long spin lifetime, combined with its large electron…

Generating efficient and highly spin-polarized currents through nanoscale junctions is essential in the field of nanoelectronics and spintronics. In this paper, using $ab$ $initio$ electron transport calculations, we predict highly…

介观与纳米尺度物理 · 物理学 2019-05-30 Dongzhe Li

Organic spintronics has drawn the interest of the science community due to various applications in spin-valve devices. But to date, an efficient room-temperature Organic Spin Valve device has not been experimentally realized due to the…

材料科学 · 物理学 2025-03-07 Sonia Kaushik , Manisha Priyadarsini , Avinash G. Khanderao , Dileep Kumar

Incorporating multifunctionality along with the spin-related phenomenon in a single device is of great interest for the development of next generation spintronic devices. One of these challenges is to couple the photo-response of the device…

Low-temperature spin-polarized scanning tunneling microscopy is employed to study spin transport across single Cobalt-Phathalocyanine molecules adsorbed on well characterized magnetic nanoleads. A spin-polarized electronic resonance is…

材料科学 · 物理学 2014-09-25 C. Iacovita , M. V. Rastei , B. W. Heinrich , T. Brumme , J. Kortus , L. Limot , J. P. Bucher

To mitigate climate change, our global society is harnessing direct (solar irradiation) and indirect (wind/water flow) sources of renewable electrical power generation. Emerging direct sources include current-producing thermal gradients in…

介观与纳米尺度物理 · 物理学 2019-10-24 K. Katcko , E. Urbain , B. Taudul , F. Schleicher , J. Arabski , E. Beaurepaire , B. Vileno , D. Spor , W. Weber , D. Lacour , S. Boukari , M. Hehn , M. Alouani , J. Fransson , M. Bowen

One of the most fundamental properties of electromagnetism and special relativity is the coupling between the spin of an electron and its orbital motion. This is at the origin of the fine structure in atoms, the spin Hall effect in…

介观与纳米尺度物理 · 物理学 2015-04-22 V. G. Sala , D. D. Solnyshkov , I. Carusotto , T. Jacqmin , A. Lemaître , H. Terças , A. Nalitov , M. Abbarchi , E. Galopin , I. Sagnes , J. Bloch , G. Malpuech , A. Amo

Motivated by the possibility of combining spintronics with molecular structures, we investigate the conditions for the appearance of spin-polarization in low-dimensional tubular systems by contacting them to a magnetic substrate. We derive…

介观与纳米尺度物理 · 物理学 2009-11-10 Mauro S. Ferreira , Stefano Sanvito

The main obstacles in realizing diluted magnetic oxide (DMO) in spintronics are the unknown electronic structures associated with its high TC ferromagnetism and spin polarized current and how to manipulate desired electronic structures by…

We propose a quantum repeater architecture that can operate under ambient conditions. Our proposal builds on recent progress towards non-cryogenic spin-photon interfaces based on nitrogen-vacancy centers, which have excellent spin coherence…

We propose a quantum repeater architecture that can operate under ambient conditions. Our proposal builds on recent progress towards non-cryogenic spin-photon interfaces based on nitrogen-vacancy centers, which have excellent spin coherence…

The observation of micron size spin relaxation makes graphene a promising material for applications in spintronics requiring long distance spin communication. However, spin dependent scatterings at the contact/graphene interfaces affect the…

The strong-coupling of an excitonic transition with an electromagnetic mode results in composite quasi-particles called exciton-polaritons, which have been shown to combine the best properties of their bare components in semiconductor…

The generation, manipulation and detection of spin-polarized electrons in nanostructures define the main challenges of spin-based electronics[1]. Amongst the different approaches for spin generation and manipulation, spin-orbit coupling,…

介观与纳米尺度物理 · 物理学 2009-11-11 Sergio O. Valenzuela , M. Tinkham

We report the room-temperature electroluminescence (EL) with nearly pure circular polarization (CP) from GaAs-based spin-polarized light-emitting diodes (spin-LEDs). External magnetic fields are not used during device operation. There are…

光学 · 物理学 2017-07-05 N. Nishizawa , K. Nishibayashi , H. Munekata

The ability to establish coherent communication channels is key for scaling up quantum devices. Here, we engineer interactions between distant polaritons, hybrid spin-photon excitations formed at different lumped-element superconducting…

From the study of long-range-interacting systems to the simulation of gauge fields, open-shell Lanthanide atoms with their large magnetic moment and narrow optical transitions open novel directions in the field of ultracold quantum gases.…