نتایج جستجو برای: spin orbit interaction

تعداد نتایج: 704368  

2010
András Pályi Guido Burkard

We present a theoretical study of the Pauli or spin-valley blockade for double quantum dots in semiconducting carbon nanotubes. In our model, we take into account the following characteristic features of carbon nanotubes: i fourfold spin and valley degeneracy of the quantum-dot levels, ii the intrinsic spin-orbit interaction which is enhanced by the tube curvature, and iii valley mixing due to ...

2001
T. P. Pareek

We explore spin and charge transport phenomena in two dimensional electron gas in presence of Rashba spin-orbit coupling connected to two ideal Ferromagnetic leads. In particular we show through a combination of analytical and numerical calculation that the spin polarization which is transported depends on the Magnetization direction of ferromagnet even if the magneti-zation of both FM's are pa...

Journal: :The Journal of chemical physics 2006
Ivan S Lim Won Chai Lee Yoon Sup Lee Gwang-Hi Jeung

Potential energy curves for the 28 lowest LambdaSigma states and 49 Omega states of RbCs are obtained from large-scale multireference configuration interaction calculations using both spin-averaged and two-component spin-orbit energy-consistent effective core potentials. Spectroscopic properties of all states are compared across available data in literature to date. Variations of the permanent ...

Journal: :Physical review letters 2008
Mathias Duckheim Daniel Loss

We investigate mesoscopic fluctuations in the spin polarization generated by a static electric field and by Rashba spin-orbit interaction in a disordered 2D electron gas. In a diagrammatic approach we find that the out-of-plane polarization--while being zero for self-averaging systems--exhibits large sample-to-sample fluctuations which are shown to be well within experimental reach. We evaluate...

2011
Cyril MARTINS

In this thesis, we were interested in the interplay between the spin-orbit coupling and electronic correlations in condensedmatter physics. The spin-orbit interaction has indeed been found to play a significant role in the properties of a growingvariety of materials, such as the topological band insulators or the iridium-based 5d-transition metal oxides. Particularly,strontium irida...

Journal: :Physical review letters 1993
Balatsky Altshuler

Spin-orbit interaction produces persistent spin and mass currents in the ring via the Aharonov-Casher effect. The experiment in 3 He − A 1 phase, in which this effect leads to the excitation of mass and spin supercurrent is proposed.

2002
O. Újsághy A. Zawadowski

PACS. 72.15.Cz – Electrical and thermal conduction in amorphous and liquid metals and alloys. PACS. 72.10.Fk – Scattering by point defects, dislocations, surfaces, and other imperfections (including Kondo effect). PACS. 71.55.-i – Impurity and defect levels. Abstract. – Two-level systems (TLS) interacting with conduction electrons are possibly described by the two-channel Kondo Hamiltonian. In ...

2009
David F. Mross Henrik Johannesson

Two-impurity Kondo model with spin-orbit interactions. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. We study the two-impurity Kondo model ͑TIKM͒ in two dimensions...

2007
J. M. Harrison

The article surveys quantization schemes for metric graphs with spin. Typically quantum graphs are defined with the Laplace or Schrödinger operator which describe particles whose intrinsic angular momentum (spin) is zero. However, in many applications, for example modeling an electron (which has spin-1/2) on a network of thin wires, it is necessary to consider operators which allow spin-orbit i...

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