Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Tao, Ruibao"'
An infinite crystal can be constructed by an infinite number of parallel two-dimensional (hkl) crystal planes coupled to each other. For crystals with negligible spin-orbit coupling, we report a rigorous proof of a criterion on the non-existence of s
Externí odkaz:
http://arxiv.org/abs/1406.5010
With the help of transfer matrix method, the conditions for the existence of the edge states in the semi-infinite armchair edged graphene is given. We discuss zero-energy and non-zero-energy edge states separately, and show the nonexistence of the ed
Externí odkaz:
http://arxiv.org/abs/1102.5417
Analytical studies of the effect of edge decoration on the energy spectrum of semi-infinite one-dimensional (1D) lattice chain with Peierls phase transition and zigzag edged graphene (ZEG) are presented by means of transfer matrix method, in the fram
Externí odkaz:
http://arxiv.org/abs/1101.3411
Autor:
Li, Wei, Tao, Ruibao
Publikováno v:
Journal of the Physical Society of Japan 81, 024704 (2012)
On the basis of tight-binding lattice model, the edge states of monolayer and bilayer graphene nanoribbons (GNRs) with different edge terminations are studied. The effects of edge-hopping modulation, spin-orbital coupling (SOC), and bias voltage on b
Externí odkaz:
http://arxiv.org/abs/1001.4168
The coherent transport properties of armchair graphene nanoconstrictions(GNC) are studied using tight-binding approach and Green's function method. We find a non-bonding state at zero Fermi energy which results in a zero conductance valley, when a si
Externí odkaz:
http://arxiv.org/abs/0912.4154
Autor:
Yin, Huiqiong, Tao, Ruibao
Publikováno v:
EPL,84(2008) 57006
A new improved transfer matrix method (TMM) is presented. It is shown that the method not only overcomes the numerical instability found in the original TMM, but also greatly improves the scalability of computation. The new improved TMM has no extra
Externí odkaz:
http://arxiv.org/abs/0709.3681
Publikováno v:
EPL, 83 (2008) 27002
We study the extra term of particle current in a 2D k-cubic Rashba spin-orbit coupling system and the integer quantization of the Hall conductance in this system. We provide a correct formula of charge current in this system and the careful considera
Externí odkaz:
http://arxiv.org/abs/0707.1472
Autor:
Tong, Yu, Tao, Ruibao
We study a 2-qubit nuclear spin system for realizing an arbitrary geometric quantum phase gate by means of non-adiabatic operation. A single magnetic pulse with multi harmonic frequencies is applied to manipulate the quantum states of 2-qubit instant
Externí odkaz:
http://arxiv.org/abs/quant-ph/0607041
Autor:
Li, Yi, Tao, Ruibao
Publikováno v:
Phys. Rev. B 75, 075319 (2007)
The formulae of particle current as well as spin- and angular momentum currents are studied for most spin-orbit coupling (SOC) systems. It is shown that the conventional expression of currents in some literatures are not complete for some SOC systems
Externí odkaz:
http://arxiv.org/abs/cond-mat/0512655
In a two dimensional electron gas with Rashba spin-orbit coupling, the external electric field may cause a spin Hall current in the direction perpendicular to the electric field. This effect was called the intrinsic spin Hall effect. In this paper, w
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407419