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相关论文: An intrinsic way to control E-sail spin

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The electric solar wind sail (E-sail) is a way to propel a spacecraft by using the natural solar wind as a thrust source. The problem of secular spinrate change was identified earlier which is due to the orbital Coriolis effect and tends to…

天体物理仪器与方法 · 物理学 2017-05-10 Pekka Janhunen , Petri Toivanen

The electric solar wind sail (E-sail) is a novel, efficient propellantless propulsion concept which utilises the natural solar wind for spacecraft propulsion with the help of long centrifugally stretched charged tethers. The E-sail requires…

天体物理仪器与方法 · 物理学 2013-01-11 P. Janhunen

The electric solar wind sail produces thrust by centrifugally spanned high voltage tethers interacting with the solar wind protons. The sail attitude can be controlled and attitude maneuvers are possible by tether voltage modulation…

天体物理仪器与方法 · 物理学 2015-06-23 Petri Toivanen , Pekka Janhunen , Jouni Envall

We provide a theoretical framework for the electric field control of the electron spin in systems with diffusive electron motion. The approach is valid in the experimentally important case where both intrinsic and extrinsic spin-orbit…

介观与纳米尺度物理 · 物理学 2009-09-10 R. Raimondi , P. Schwab

We propose a novel scheme to efficiently polarize and manipulate the electron spin in a quantum dot. This scheme is based on the spin-orbit interaction and it possesses following advantages: (1) The direction and the strength of the spin…

介观与纳米尺度物理 · 物理学 2009-11-11 Qing-feng Sun , X. C. Xie

The spin-orbit coupling (SOC) can mediate electric-dipole spin resonance (EDSR) in an a.c. electric field. In this letter, the EDSR is essentially understood as an spin precession under an effective a.c. magnetic field induced by the SOC in…

介观与纳米尺度物理 · 物理学 2015-02-03 Li-Ping Yang , C. P. Sun

We show that the electron spin polarization generated by an electrical current may have its direction controlled and magnitude amplified by periodic optical excitation. The electrical and optical spin control methods were combined and…

介观与纳米尺度物理 · 物理学 2014-07-17 Felix G. G. Hernandez , Gennady M. Gusev , Askhat K. Bakarov

Solar sails with the capability of generating a tangential radiation pressure at the sun-pointing attitude, such as refractive sails can provide more efficient methods for attitude and orbital control of sailcraft. This paper presents the…

空间物理 · 物理学 2022-06-28 Shahin Firuzi , Yu Song , Shengping Gong

A brief review is given on the spin Hall effect, where an external electric field induces a transverse spin current. It has been recognized over 30 years that such effect occurs due to impurities in the presence of spin-orbit coupling.…

介观与纳米尺度物理 · 物理学 2007-05-23 Shuichi Murakami

A theoretical model of nuclear spin conversion in molecules controlled by an external electromagnetic radiation resonant to rotational transition has been developed. It has been shown that one can produce an enrichment of spin isomers and…

化学物理 · 物理学 2009-11-06 P. L. Chapovsky

Focusing on the efficient probe and manipulation of single-particle spin states, we investigate the coupled spin and orbital dynamics of a spin 1/2 particle in a harmonic potential subject to ultrastrong spin-orbit interaction and external…

介观与纳米尺度物理 · 物理学 2014-01-21 C. Echeverria-Arrondo , E. Ya. Sherman

The solar wind electric sail (E-sail) is a planned in-space propulsion device that uses the natural solar wind momentum flux for spacecraft propulsion with the help of long, charged, centrifugally stretched tethers. The problem of…

天体物理仪器与方法 · 物理学 2016-01-20 Pekka Janhunen

Spin waves in insulating magnets are ideal carriers for spin currents with low energy dissipation. An electric field can modify the dispersion of spin waves, by directly affecting, via spin-orbit coupling, the electrons that mediate the…

介观与纳米尺度物理 · 物理学 2015-05-27 Tianyu Liu , G. Vignale

We consider a special relativistic effect, known as the Poynting-Robertson effect, on various types of trajectories of solar sails. Since this effect occurs at order $v^{\phi}/c$, where $v^{\phi}$ is the tangential speed relative to the…

空间物理 · 物理学 2010-12-17 Roman Ya. Kezerashvili , Justin F. Vazquez-Poritz

Electric control of spin in insulators is desired for low-consumption and ultrafast spintronics, but the underlying mechanism remains largely unexplored. Here, we propose an intrinsic effect of dynamic spin generation driven by time-varying…

介观与纳米尺度物理 · 物理学 2025-09-09 Xukun Feng , Jin Cao , Zhi-Fan Zhang , Lay Kee Ang , Shen Lai , Hua Jiang , Cong Xiao , Shengyuan A. Yang

Topological insulators are candidates to open up a novel route in spin based electronics. Different to traditional ferromagnetic materials, where the carrier spin-polarization and magnetization are based on the exchange interaction, the…

We present a general theory about electron orbital motions in topological insulators. An in-plane electric field drives spin-up and spin-down electrons bending to opposite directions, and skipping orbital motions, a counterpart of the…

介观与纳米尺度物理 · 物理学 2016-01-14 Li-kun Shi , Shou-cheng Zhang , Kai Chang

Chirality-induced spin selectivity has been reported in many experiments, but a generally accepted theoretical explanation has not yet been proposed. Here, we introduce a simple model system of a straight cylindrical free-electron wire,…

介观与纳米尺度物理 · 物理学 2023-07-26 Jan M. van Ruitenbeek , Richard Korytár , Ferdinand Evers

A new way of getting controlled spin dependent transport through a two-terminal bridge setup is explored. The system comprises a magnetic quantum ring which is directly coupled to a magnetic quantum wire and subjected to an in-plane…

介观与纳米尺度物理 · 物理学 2015-07-09 Santanu K. Maiti

The shape of a rotating electric solar wind sail under the centrifugal force and solar wind dynamic pressure is modeled to address the sail attitude maintenance and thrust vectoring. The sail rig assumes centrifugally stretched main tethers…

天体物理仪器与方法 · 物理学 2017-03-28 Petri Toivanen , Pekka Janhunen
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