中文
相关论文

相关论文: Spin-orbit interaction in bent carbon nanotubes: r…

200 篇论文

We investigate the influence of spin-orbit coupling on the Kondo effects in carbon nanotube quantum dots, using the numerical renormalization group technique. A sufficiently large spin-orbit coupling is shown to destroy the SU(4) Kondo…

强关联电子 · 物理学 2010-03-11 Martin R. Galpin , Frederic W. Jayatilaka , David E. Logan , Frithjof B. Anders

We have investigated the effect of spin-orbit (SO) coupling on the emission spectra of a quantum cascade laser. In an externally applied magnetic field parallel to the electron plane, the SO coupling would result in a double-peak structure…

介观与纳米尺度物理 · 物理学 2009-11-11 V. Apalkov , A. Bagga , T. Chakraborty

We have theoretically explored the spin-orbit interaction in carbon nanotubes. We have found that, besides the dependence on chirality and diameter, the effects of spin-orbit coupling are anisotropic: spin splitting is larger for the higher…

介观与纳米尺度物理 · 物理学 2015-05-13 L. Chico , M. P. Lopez-Sancho , M. C. Munoz

A possibility of controlled manipulation of electron spin states has been investigated for a cylindrical two-dimensional electron gas confined in a semiconductor nanotube/cylindrical nanowire with the Rashba spin-orbit interaction. We…

介观与纳米尺度物理 · 物理学 2014-04-03 P. Wójcik , J. Adamowski , M. Wołoszyn , B. J. Spisak

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…

介观与纳米尺度物理 · 物理学 2009-11-11 S. Krompiewski , N. Nemec , G. Cuniberti

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…

介观与纳米尺度物理 · 物理学 2008-10-20 J. R. Hauptmann , J. Paaske , P. E. Lindelof

The recent experimental realization of spin-orbit (SO) coupling for spin-1 ultracold atoms opens an interesting avenue for exploring SO-coupling-related physics in large-spin systems, which is generally unattainable in electronic materials.…

量子气体 · 物理学 2016-02-11 Kuei Sun , Chunlei Qu , Yong Xu , Yongping Zhang , Chuanwei Zhang

We analytically calculate the nuclear-spin interactions of a single electron confined to a carbon nanotube or graphene quantum dot. While the conduction-band states in graphene are p-type, the accordant states in a carbon nanotube are…

介观与纳米尺度物理 · 物理学 2009-10-02 Jan Fischer , Bjoern Trauzettel , Daniel Loss

We perform a systematic exact diagonalization study of spin-orbit coupling effects for stationary few-electron states confined in quasi two-dimensional double quantum dots. We describe the spin-orbit-interaction induced coupling between…

介观与纳米尺度物理 · 物理学 2010-06-17 M. P. Nowak , B. Szafran

A theoretical description of ESR in 1D interacting metals is given, with primary emphasis on carbon nanotubes. The spin-orbit coupling is derived, and the resulting ESR spectrum is analyzed by field theory and exact diagonalization. Drastic…

强关联电子 · 物理学 2009-11-07 A. De Martino , R. Egger , K. Hallberg , C. A. Balseiro

Energy spectra and transport properties of armchair nanotubes with curvature induced spin-orbit interaction are investigated thoroughly. The spin-orbit interaction consists of two terms: the first one preserves the spin symmetry in rotating…

介观与纳米尺度物理 · 物理学 2014-06-03 K. N. Pichugin , M. Pudlak , R. G. Nazmitdinov

Spin-orbit coupling (SOC) is a relativistic effect, where an electron moving in an electric field experiences an effective magnetic field in its rest frame. In crystals without inversion symmetry, it lifts the spin degeneracy and leads to…

We present an exact theoretical study of the effect of the spin-orbit (SO) interaction on the band structure and low temperature transport in long quasi-one-dimensional electron systems patterned in two-dimensional electron gases in zero…

介观与纳米尺度物理 · 物理学 2009-10-31 A. V. Moroz , C. H. W. Barnes

Motivated by recent experimental development, we investigate spin-orbit coupled repulsive Fermi atoms in a one-dimensional optical lattice. Using the density-matrix renormalization group method, we calculate momentum distribution function,…

量子气体 · 物理学 2015-10-09 Xiaofan Zhou , Kuang Zhang , Junjun Liang , Gang Chen , Suotang Jia

For coherent electron spins, hyperfine coupling to nuclei in the host material can either be a dominant source of unwanted spin decoherence or, if controlled effectively, a resource allowing storage and retrieval of quantum information. To…

介观与纳米尺度物理 · 物理学 2013-05-28 H. O. H. Churchill , A. J. Bestwick , J. W. Harlow , F. Kuemmeth , D. Marcos , C. H. Stwertka , S. K. Watson , C. M. Marcus

We study spin-orbit proximity effects in a hybrid heterostructure build of a one-dimensional (1D) armchair carbon nanotube and two-dimensional (2D) buckled monolayer bismuthene. We show, by performing first-principles calculations, that…

介观与纳米尺度物理 · 物理学 2023-05-19 Marcin Kurpas

We investigate the ground-state properties of a dual-species spin-1/2 Bose-Einstein condensate. One of the species is subjected to a pair of Raman laser beams that induces spin-orbit (SO) coupling, whereas the other species is not coupled…

量子气体 · 物理学 2018-04-04 Li Chen , Chuanzhou Zhu , Yunbo Zhang , Han Pu

Spin-orbit qubit (SOQ) is the dressed spin by the orbital degree of freedom through a strong spin-orbit coupling. We show that Coulomb interaction between two electrons in quantum dots located separately in two nanowires can efficiently…

介观与纳米尺度物理 · 物理学 2015-06-17 Y. N. Fang , Yusuf Turek , J. Q. You , C. P. Sun

We use a low-temperature scanning tunneling microscope to study the interplay between the Kondo effect of a single-atom contact and a spin current. To this end, a nickel tip is coated by a thick layer of copper and brought into contact with…

强关联电子 · 物理学 2019-01-16 Deung-Jang Choi , Sébastien Guissart , Pascal Simon , Laurent Limot

A spin-orbit qubit is a hybrid qubit that contains both orbital and spin degrees of freedom of an electron in a quantum dot. Here we study the exchange coupling between two spin-orbit qubits in a nanowire double quantum dot (DQD) with…

介观与纳米尺度物理 · 物理学 2014-08-13 Rui Li , J. Q. You