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相关论文: Spin-orbit effects in armchair carbon nanotubes: a…

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The electronic spin-orbit coupling in carbon nanotubes is strongly enhanced by the curvature of the tube surface and has important effects on the single-particle spectrum. Here, we include the full spin-orbit interaction in the formulation…

介观与纳米尺度物理 · 物理学 2010-07-16 A. Schulz , A. De Martino , R. Egger

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…

介观与纳米尺度物理 · 物理学 2011-10-28 Miriam del Valle , Magdalena Marganska , Milena Grifoni

We review the theoretical description of spin-orbit scattering and electron spin resonance in carbon nanotubes. Particular emphasis is laid on the effects of electron-electron interactions. The spin-orbit coupling is derived, and the…

强关联电子 · 物理学 2012-09-27 A. De Martino , R. Egger , F. Murphy-Armando , K. Hallberg

Structure of the spin-orbit coupling varies from material to material and thus finding the correct spin-orbit coupling structure is an important step towards advanced spintronic applications. We show theoretically that the curvature in a…

介观与纳米尺度物理 · 物理学 2011-09-14 Jae-Seung Jeong , Hyun-Woo Lee

It has recently been recognized that the strong spin-orbit interaction present in solids can lead to new phenomena, such as materials with non-trivial topological order. Although the atomic spin-orbit coupling in carbon is weak, the…

介观与纳米尺度物理 · 物理学 2013-04-12 G. A. Steele , F. Pei , E. A. Laird , J. M. Jol , H. B. Meerwaldt , L. P. Kouwenhoven

We theoretically investigate the deflection-induced coupling of an electron spin to vibrational motion due to spin-orbit coupling in suspended carbon nanotube quantum dots. Our estimates indicate that, with current capabilities, a quantum…

介观与纳米尺度物理 · 物理学 2012-06-05 András Pályi , P. R. Struck , Mark Rudner , Karsten Flensberg , Guido Burkard

We study the two-terminal transport properties of a metallic single-walled carbon nanotube with good contacts to electrodes, which have recently been shown [W. Liang et al, Nature 441, 665-669 (2001)] to conduct ballistically with weak…

介观与纳米尺度物理 · 物理学 2009-11-10 Claudia S. Peca , Leon Balents , Kay Wiese

Spin qubits defined in carbon nanotube quantum dots are of considerable interest for encoding and manipulating quantum information because of the long electron spin coherence times expected. However, before carbon nanotubes can find…

介观与纳米尺度物理 · 物理学 2010-04-27 S. J. Chorley , G. Giavaras , J. Wabnig , G. A. C. Jones , C. G. Smith , G. A. D. Briggs , M. R. Buitelaar

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…

介观与纳米尺度物理 · 物理学 2010-05-25 K. Flensberg , C. M. Marcus

We demonstrate that due to their spin-orbit interaction carbon nanotube cross-junctions have attractive spin projective properties for transport. First, we show that the junction can be used as a versatile spin filter as a function of a…

介观与纳米尺度物理 · 物理学 2013-11-12 Francesco Mazza , Bernd Braunecker , Patrik Recher , Alfredo Levy Yeyati

Understanding how the orbital motion of electrons is coupled to the spin degree of freedom in nanoscale systems is central for applications in spin-based electronics and quantum computation. We demonstrate this coupling of spin and orbit in…

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 study spin-orbit proximity effects in an armchair (4,4) carbon nanotube on the Pt(111) surface. By employing first-principles calculations, we show that the Dirac cone of the metallic nanotube is altered due to strong hybridization with…

介观与纳米尺度物理 · 物理学 2024-09-04 Marcin Kurpas , Marko Milivojević , Martin Gmitra

We study spin relaxation and decoherence caused by electron-lattice and spin-orbit interaction and predict striking effects induced by magnetic fields $B$. For particular values of $B$, destructive interference occurs resulting in ultralong…

介观与纳米尺度物理 · 物理学 2008-06-04 Denis V. Bulaev , Bjoern Trauzettel , Daniel Loss

Interaction-induced magnetism at the ends of carbon nanotubes is studied theoretically, with a special focus on magnetic anisotropies. Spin-orbit coupling, generally weak in ordinary graphene, is strongly enhanced in nanotubes. In…

介观与纳米尺度物理 · 物理学 2012-03-26 Manuel J. Schmidt

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…

介观与纳米尺度物理 · 物理学 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 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

Spin-coherent quantum transport in carbon nanotube magnetic tunnel junctions was investigated theoretically. A spin-valve effect is found for metallic, armchair tubes, with a magneto-conductance ratio ranging up to 20%. Because of the…

介观与纳米尺度物理 · 物理学 2009-10-31 H. Mehrez , Jeremy Taylor , Hong Guo , Jian Wang , Christopher Roland

We calculate the spin-dependent zero-bias conductance $G_{\sigma\sigma'}$ in armchair graphene nanoribbons with hydrogen adsorbates employing a DFT-based ab initio transport formalism including spin-orbit interaction. We find that the…

介观与纳米尺度物理 · 物理学 2015-07-07 Jan Wilhelm , Michael Walz , Ferdinand Evers

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
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