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We investigate combined effects of spin-orbit coupling and magnetic field in carbon nanotubes containing one or more bends along their length. We show how bends can be used to provide electrical control of confined spins, while spins…

Mesoscale and Nanoscale Physics · Physics 2010-05-25 K. Flensberg , C. M. Marcus

The transport properties of finite nanotubes placed in a magnetic field parallel to their axes are investigated. Upon including spin-orbit coupling and curvature effects, two main phenomena are analyzed which crucially depend on the tube's…

Mesoscale and Nanoscale Physics · Physics 2011-10-28 Miriam del Valle , Magdalena Marganska , Milena Grifoni

In this Letter we show how a single beam optical trap offers the means for three-dimensional manipulation of semiconductor nanorods in solution. Furthermore rotation of the direction of the electric field provides control over the…

Biological Physics · Physics 2012-03-06 C. Robin Head , Elena Kammann , Marco Zanella , Liberato Manna , Pavlos G. Lagoudakis

We demonstrate theoretically that it is possible to manipulate electron or hole spins all optically in semiconducting carbon nanotubes. The scheme that we propose is based on the spin-orbit interaction that was recently measured…

Other Condensed Matter · Physics 2008-10-08 Christophe Galland , Atac Imamoglu

Injecting spins into a semiconductor channel and transforming the spin information into a significant electrical output signal is a long standing problem in spintronics. Actually, this is the prerequisite of several concepts of spin…

Materials Science · Physics 2009-11-11 A. Fert , J. -M. George , H. Jaffres , R. Mattana

It has recently been realized that magnetic systems with coplanar magnetic order that are invariant under the combined operation of time-reversal and translation with half a unit cell feature energy bands with a symmetry-protected p-wave…

Mesoscale and Nanoscale Physics · Physics 2025-06-02 Erik Wegner Hodt , Hendrik Bentmann , Jacob Linder

The spin-selective transport through helical molecules has been a hot topic in condensed matter physics, because it develops a new research direction in spintronics, \emph{i.e.}, chiro-spintronics. Double-stranded DNA (dsDNA) molecules have…

Mesoscale and Nanoscale Physics · Physics 2020-08-26 Gui-Fang Du , Hua-Hua Fu , Ruqian Wu

Spin filtering is a fundamental operation in spintronics, enabling the generation and detection of spin-polarized carriers. Here, we proposed and theoretically demonstrated that a 3d transition metal (TM) doped silicon quantum dot (SiQD) is…

Mesoscale and Nanoscale Physics · Physics 2024-02-28 Hemant Arora , Arup Samanta

Three-dimensional (3D) magnetic nanostructures offer unprecedented opportunities for engineering emergent spin textures, but controlling their configuration remains a central challenge. Here we show that conformally coated Ni Nanotubes…

Mesoscale and Nanoscale Physics · Physics 2025-12-16 Alexander Roberts , Huixin Guo , Joseph Askey , Vani Lanka , Arjen van den Berg , Dirk Grundler , Sam Ladak

Manipulating the polarisation of light is crucial for sensing and imaging applications. One such aspect in particular is selective transmission of one circular polarisation (spin) when light is transmitted through a medium or a device.…

A method for deterministic control of the magnetic order parameter using an electrical stimulus is highly desired for the new generation of spintronic and magnetoelectronic devices. Much effort has been focused on magnetic domain-wall…

While the helical character of the edge channels responsible for charge transport in the quantum spin Hall regime of a two-dimensional topological insulator is by now well established, an experimental confirmation that the transport in the…

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,…

The chiral-induced spin selectivity (CISS) effect, a phenomenon where the chirality of molecules imparts significant spin selectivity to electron transfer processes, has garnered increasing interest among the chemistry, biology, and physics…

Chemical Physics · Physics 2025-09-05 Tian-Yi Zhang , Yue Mao , Ai-Min Guo , Qing-Feng Sun

The observation of spin-dependent transmission of electrons through chiral molecules has led to the discovery of chiral-induced spin selectivity (CISS). The remarkably high efficiency of the spin polarizing effect has recently gained…

Mesoscale and Nanoscale Physics · Physics 2024-03-01 Ashish Moharana , Yael Kapon , Fabian Kammerbauer , David Anthofer , Shira Yochelis , Mathias Kläui , Yossi Paltiel , Angela Wittmann

We study spin transport of holes through stubless or stubbed waveguides modulated periodically by diluted magnetic semiconductor (DMS) sections of width b1 . Injected holes of up (down) spin feel a periodically modulated barrier (well)…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 X. F. Wang , P. Vasilopoulos

Altermagnets host intrinsically chirality-splitting spin waves, which offer an ideal platform for chirality-based computing with low energy consumption and fast dynamics. However, achieving precise and efficient control over spin-wave…

Mesoscale and Nanoscale Physics · Physics 2025-10-29 Wen-Tong Li , Yu-Biao Wu , Lin Zhuang , Jian-Tao Wang , Wu-Ming Liu

Rare-earth nitrides, such as gadolinium nitride (GdN), have great potential for spintronic devices due to their unique magnetic and electronic properties. GdN has a large magnetic moment, low coercitivity and strong spin polarization…

To construct reliable material platforms and to uncover new rules to realize spin-Seebeck effect (SSE) and thermal spin-filtering effect (SFE) are core topics in spin caloritronics. Here we design several single-layer boron-nitrogen…

Mesoscale and Nanoscale Physics · Physics 2018-09-26 Dan-Dan Wu , Hua-Hua Fu , Qing-Bo Liu , Gui-Fang Du , Ruqian Wu

Spin filtering and its back-action spin transfer torque (STT) are key ingredients of latest spintronic devices based on magnetic tunnel junctions (MTJs). Resonant tunneling (RT), implemented by design or occurring as parasitic effects, is…

Mesoscale and Nanoscale Physics · Physics 2025-10-27 Maciej Bazarnik , Anika Schlenhoff
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