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Related papers: Spin diode based on a single-wall carbon nanotube

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We report Pauli spin blockade in an impurity defined carbon nanotube double quantum dot. We observe a pronounced current suppression for negative source-drain bias voltages which is investigated for both symmetric and asymmetric coupling of…

We propose making light emitting diodes out of inverse spin valves. The proposed diodes rely on the spin-dependent electron transport of inverse spin valves that are layered structures of a ferromagnetic half-metal sandwiched between two…

Materials Science · Physics 2015-05-13 X. R. Wang

We report the experimental observation of spin-induced magnetoresistance in single-wall carbon nanotubes contacted with high-transparency ferromagnetic electrodes. In the linear regime the spin-induced magnetoresistance oscillates with gate…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 H. T. Man , I. J. W. Wever , A. F. Morpurgo

Recent conductance measurements on multi-wall carbon nanotubes (CNTs) reveal an effective behavior similar to disordered single-wall CNTs. This is due to the fact that electric current flows essentially through the outermost shell and is…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 S. Krompiewski , N. Nemec , G. Cuniberti

The spin transport characteristics of a nanowire directional electronic coupler have been evaluated theoretically via a transfer matrix approach. The application of a gate field in the region of mixing allows for control of spin current…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 M. Rebello Sousa Dias , V. Lopez-Richard , G. E. Marques , S. E. Ulloa

We investigate the properties of conduction electrons in single-walled armchair carbon nanotubes in the presence of mutually orthogonal electric and magnetic fields transverse to the tube's axis. We find that the fields give rise to an…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 Wade DeGottardi , Tzu-Chieh Wei , Victoria Fernandez , Smitha Vishveshwara

We demonstrate that giant current and high spin rectification ratios can be achieved in atomic carbon chain devices connected between two symmetric ferromagnetic zigzag-graphene-nanoribbon electrodes. The spin dependent transport simulation…

Materials Science · Physics 2014-09-01 Y. J. Dong , X. F. Wang , S. W. Yang , X. M. Wu

Spintronics is an approach to electronics in which the spin of the electrons is exploited to control the electric resistance R of devices. One basic building block is the spin-valve, which is formed if two ferromagnetic electrodes are…

Mesoscale and Nanoscale Physics · Physics 2016-08-16 Sangeeta Sahoo , Takis Kontos , Jürg Furer , Christian Hoffmann , Matthias Gräber , Audrey Cottet , Christian Schönenberger

We derive an effective low-energy theory for metallic (armchair and non-armchair) single-wall nanotubes in the presence of an electric field perpendicular to the nanotube axis, and in the presence of magnetic fields, taking into account…

Mesoscale and Nanoscale Physics · Physics 2011-11-15 Jelena Klinovaja , Manuel J. Schmidt , Bernd Braunecker , Daniel Loss

Spintronic devices operating with pure spin currents represent a new paradigm in nanoelectronics, with higher energy efficiency and lower dissipation as compared to charge currents. This technology, however, will be viable only if the…

Mesoscale and Nanoscale Physics · Physics 2019-10-08 Kumar Sourav Das , Denys Makarov , Paola Gentile , Mario Cuoco , Bart J. van Wees , Carmine Ortix , Ivan J. Vera-Marun

We theoretically investigate inelastic transport through anisotropic magnetic molecules weakly coupled to one ferromagnetic and one nonmagnetic lead. We find that the current is suppressed over wide voltage ranges due to spin blockade. In…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Florian Elste , Carsten Timm

An important consequence of the discovery of giant magnetoresistance in metallic magnetic multilayers is a broad interest in spin dependent effects in electronic transport through magnetic nanostructures. An example of such systems are…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 J. Barnas , I. Weymann

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 consider fluctuation relations between the transport coefficients of a spintronic system where magnetic interactions play a crucial role. We investigate a prototypical spintronic device (a spin-diode) which consists of an interacting…

Mesoscale and Nanoscale Physics · Physics 2013-06-25 Jong Soo Lim , Rosa Lopez , David Sanchez

We report on spin dependent transport measurements in carbon nanotubes based multi-terminal circuits. We observe a gate-controlled spin signal in non-local voltages and an anomalous conductance spin signal, which reveal that both the spin…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 C. Feuillet-Palma , T. Delattre , P. Morfin , J. -M. Berroir , G. Fève , D. C. Glattli , B. Placais , A. Cottet , T. Kontos

We present a theoretical study, based on density functional theory and tight binding modeling, of the electronic structure and spin transport properties of silicon nanoparticles with adsorbed bismuth atoms. We find the bismuth atoms to form…

Mesoscale and Nanoscale Physics · Physics 2022-09-20 Alireza Saffarzadeh , George Kirczenow

We describe an approach to electrically control the strong interaction between a single electron spin and the vibrational motion of a suspended carbon nanotube resonator. The strength of the deflection-induced spin-phonon coupling is…

Quantum Physics · Physics 2015-10-20 Fang-Yu Hong , Jing-Li Fu , Yan Wu , Zhi-Yan Zhu

Electron transport through a three-electrode triple-quantum-dot ring with the source electrode of spin-dependent splitting of chemical potentials (spin bias) is theoretically investigated. We find clear charge and spin currents in the drain…

Mesoscale and Nanoscale Physics · Physics 2009-09-24 Weijiang Gong , Xuefeng Xie , Yu Han , Guozhu Wei

We demonstrate single electron addition to different strands of a carbon nanotube rope. Anticrossings of anomalous conductance peaks occur in quantum transport measurements through the parallel quantum dots forming on the individual…

Mesoscale and Nanoscale Physics · Physics 2011-08-02 Karin Goß , Sebastian Smerat , Martin Leijnse , Maarten R. Wegewijs , Claus M. Schneider , Carola Meyer

We investigated spin-resolved electronic transport through a junction composed of a nonmagnetic metal electrode and a zigzag carbon nanotube by means of self-consistent Green's function method in the tight binding approximation and the…

Mesoscale and Nanoscale Physics · Physics 2007-09-12 Zhan-Feng Jiang , Jian Li , Shun-Qing Shen , W. M. Liu