Zobrazeno 101 - 110
of 23 998
pro vyhledávání: '"Lei X"'
We present a kinetic equation approach to investigate dc transport properties of graphene in the diffusive regime considering long-range electron-impurity scattering. In our study, the effects of interband correlation (or polarization) on conductivit
Externí odkaz:
http://arxiv.org/abs/0707.0559
Autor:
Lei, X. L.
Publikováno v:
Applied Physics Letters 91, 112104 (2007)
Magnetoresistance oscillations in two-dimensional electron systems driven simultaneously by a strong direct current and a microwave irradiation, are analyzed within a unified microscopic scheme treating both excitations on an equal footing. The micro
Externí odkaz:
http://arxiv.org/abs/0706.3094
Publikováno v:
Phys. Rev. B 76, 115308 (2007).
Motivated by a recent experiment on nonlinear tunneling in a suspended Carbon nanotube connected to two normal electrodes [S. Sapmaz, {\it et al}., Phys. Rev. Lett. {\bf 96}, 26801 (2006)], we investigate nonequilibrium vibration-mediated sequential
Externí odkaz:
http://arxiv.org/abs/0706.2240
Publikováno v:
Appl. Phys. Lett. 90, 242101 (2007).
We analyze resonant tunneling subject to a non-adiabatic time-dependent bias-voltage through an asymmetric single molecular quantum dot with coupling between the electronic and vibrational degrees of freedom using a {\em Tien-Gordon-type} rate equati
Externí odkaz:
http://arxiv.org/abs/0705.2624
Controlling inelastic cotunneling through an interacting quantum dot by a circularly-polarized field
Autor:
Dong, Bing, Lei, X. L.
Publikováno v:
Phys. Rev. B 75, 075310 (2007)
We study inelastic cotunneling through a strong Coulomb-blockaded quantum dot subject to a static magnetic field and a perpendicular circularly-polarized magnetic field using a quantum Langevin equation approach. Our calculation predicts an interesti
Externí odkaz:
http://arxiv.org/abs/cond-mat/0611573
Autor:
Dong, Bing, Lei, X. L.
Publikováno v:
Commun. Theoret. Phys. 49, 1045 (2008).
We report our studies of zero-frequency shot noise in tunneling through a parallel-coupled quantum dot interferometer by employing number-resolved quantum rate equations. We show that the combination of quantum interference effect between two pathway
Externí odkaz:
http://arxiv.org/abs/cond-mat/0611552
Autor:
Lei, X. L.
Publikováno v:
Applied Physics Letters 90, 132119 (2007)
Electric current-induced magnetoresistance oscillations recently discovered in two-dimensional electron systems are analyzed using a microscopic scheme for nonlinear magnetotransport direct controlled by the current. The magnetoresistance oscillation
Externí odkaz:
http://arxiv.org/abs/cond-mat/0610570
We employ a helicity-basis kinetic equation approach to investigate the anomalous Hall effect in two-dimensional narrow-band semiconductors considering both Rashba and extrinsic spin-orbit (SO) couplings, as well as a SO coupling directly induced by
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609412
Autor:
Lei, X. L., Liu, S. Y.
The frequency dependence of the peak-valley pairs occurring in the magnetoresistivity of a two-dimensional electron system under enhanced microwave irradiation, which are considered to associate with multiphoton processes, is examined in the sub-cycl
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609076
Autor:
Lei, X. L., Liu, S. Y.
Publikováno v:
Appl. Phys. Lett. 89, 182117 (2006)
The magnetoresistance oscillations in high-mobility two-dimensional electron systems induced by two radiation fields of frequencies 31 GHz and 47 GHz, are analyzed in a wide magnetic-field range down to 100 G, using the balance-equation approach to m
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608655