Zobrazeno 1 - 10
of 946
pro vyhledávání: '"Cui, H. L."'
Publikováno v:
Acta Physica Polonica: A; Aug2024, Vol. 146 Issue 2, p186-194, 9p
Publikováno v:
J. Appl. Phys. 103, 063714 (2008).
By solving the kinetic spin Bloch equations, we study the time evolution of the transient spin grating, whose spin polarization varies periodically in real space, confined in (001) GaAs quantum wells. With this study we can investigate the properties
Externí odkaz:
http://arxiv.org/abs/0708.1975
Publikováno v:
Phys. Rev. B 72, 165326 (2005)
We present a theoretical analysis of several aspects of nonequilibirum cotunneling through a strong Coulomb-blockaded quantum dot (QD) subject to a finite magnetic field in the weak coupling limit. We carry this out by developing a generic quantum He
Externí odkaz:
http://arxiv.org/abs/cond-mat/0508278
Publikováno v:
Appl. Phys. Lett. 87, 032105 (2005)
We report our studies of the shot noise spectrum in tunneling through an interacting quantum dot when an additional single-level quantum dot without tunnel coupling to leads is coherently side-connected to it. We show that the zero-frequency shot noi
Externí odkaz:
http://arxiv.org/abs/cond-mat/0411392
Publikováno v:
J. Appl. Phys. 99, 63710 (2006).
In this paper, we carry out a theoretical analysis of the zero-frequency and finite-frequency shot noise in electron tunneling through a two-level interacting system connected to two leads, when a coherent coupling between the two levels is present,
Externí odkaz:
http://arxiv.org/abs/cond-mat/0411091
Publikováno v:
Phys. Rev. B 71, 45331 (2005).
We present a theoretical analysis of the effect of inelastic electron scattering on current and its fluctuations in a mesoscopic quantum dot (QD) connected to two leads, based on a recently developed nonperturbative technique involving the approximat
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407655
Publikováno v:
IEEE transactions on Nanotechnology 4, 71, (2005)
In this paper, we present theoretical investigation of the zero-frequency shot noise spectra in electron tunneling through an interacting quantum dot connected to two ferromagnetic leads with possibility of spin-flip scattering between the two spin s
Externí odkaz:
http://arxiv.org/abs/cond-mat/0406679
Publikováno v:
Europhys. Lett. 69, 424, (2005)
We study the Kondo effect in a quantum dot embedded in a mesoscopic ring taking into account intradot spin-flip scattering $R$. Based on the finite-$U$ slave-boson mean-field approach, we find that the Kondo peak in the density of states is split int
Externí odkaz:
http://arxiv.org/abs/cond-mat/0405538
Publikováno v:
Phys. Rev. Lett. 94, 066601 (2005)
We exploit the pumped spin-current and current noise spectra under equilibrium condition in a single quantum dot connected to two normal leads, as an electrical scheme for detection of the electron spin resonance (ESR) and decoherence. We propose spi
Externí odkaz:
http://arxiv.org/abs/cond-mat/0404064
Publikováno v:
J. Phys.: Cond. Matter 16, 4303 (2004)
We derive the quantum rate equations for an Aharonov-Bohm interferometer with two vertically coupled quantum dots embedded in each of two arms by means of the nonequilibrium Green's function in the sequential tunneling regime. Basing on these equatio
Externí odkaz:
http://arxiv.org/abs/cond-mat/0403741