搜索结果: 1-15 共查到“低维物理 Spin”相关记录29条 . 查询时间(0.13 秒)
Homogeneous populations of oscillators have recently been shown to exhibit stable coexistence
of coherent and incoherent regions. Generalizing the concept of chimera states to the context of order-di...
Atomistic theory of spin relaxation in self-assembled In$_{1-x}$Ga$_x$As/GaAs quantum dots at zero magnetic field
Atomistic theory spin relaxation zero magnetic field
2010/11/25
We present full atomistic calculations of the spin-flip time (T1) of electrons and holes mediated by acoustic phonons in self-assembled In1−xGaxAs/GaAs quantum dots at zero magnetic field. At lo...
Spin canting as a result of the competition between stripes and spirals in cuprates
Spin canting spirals in cuprates
2010/11/24
Based on the extended Hubbard model we calculate the energy of stripe and spiral ground states.
We find that uniform spirals get favored by a large t′/t ratio but are unstable at small doping towards...
On a microcanonical relation between continuous and discrete spin models
microcanonical relation ontinuous discrete spin models
2010/11/24
A relation between a class of stationary points of the energy landscape of continuous spin mod-
els on a lattice and the configurations of a Ising model defined on the same lattice suggests an approx...
Lifshitz transition in two-dimensional spin-density wave models
Lifshitz transition two-dimensional spin-density wave models
2010/11/23
We argue that both pocket-disappearing and neck-disrupting types of Lifshitz transitions can be
realized in two-dimensional spin-density wave models for underdoped cuprates, and study both
types of ...
Striking Roles for Spin Degrees of Freedom in the Second Landau Level
Spin Degrees Second Landau Level
2010/11/23
The spin degree of freedom in quantum phases of the second Landau level is probed by resonant light scattering.The long wavelength spin wave mode, which monitors the degree of spin polarization, is at...
Spin-dependent electronic hybridization in a rope of carbon nanotubes
Spin-dependent electronic hybridization carbon nanotubes
2010/11/24
We demonstrate single electron addition to different strands of a carbon nanotube rope. Anticrossings of anomalous conductance peaks occur in quantum transport measurements through the parallel quantu...
Anisotropic spin Hall effect from first principles
Anisotropic spin Hall effect first principles
2010/11/22
We report on first principles calculations of the anisotropy of the intrinsic spin Hall conductivity (SHC) in nonmagnetic hcp metals and in antiferromagnetic Cr. For most of the metals of this study w...
We performed inelastic neutron scattering on powder sample of the P-doped iron-based super-
conductor BaFe2(As0.65P0.35)2 with Tc = 30 K, whose superconducting (SC) order parameter is
expected to ha...
Spin-dependent Scattering by a Potential Barrier on a Nanotube
Spin-dependent Scattering Potential Barrier on a Nanotube
2010/11/22
The electron spin effects on the surface of a nanotube have been considered through the spin-orbit interaction (SOI), arising from the electron confinement on the surface of the nanotube. This is of t...
Coulomb interaction effects and electron spin relaxation in the 1d Kondo lattice model
Ludwig-Maximilians-Universit¨at M¨unchen University of Queensland
2010/11/23
We study the effects of the Coulomb interaction in the one dimensional Kondo lattice model on
the phase diagram, the static magnetic susceptibility and electron spin relaxation. We show that onsite C...
Anomalous spin-resolved point-contact transmission of holes due to cubic Rashba spin-orbit coupling
Anomalous spin-resolved point-contact transmission cubic Rashba spin-orbit coupling
2010/11/22
cEvidence is presented for the nite wave vector crossing of the two lowest one-dimensional spin-split subbands in quantum point contacts fabricated from two-dimensional hole gases with strong spin-or...
Tuning the spin texture in binary and ternary surface alloys on Ag(111)
Tuning the spin texture ternary surface alloys
2010/11/19
Recently, a giant spin splitting has been observed in surface alloys on noble metal (111) surfaces as a result of a strong structural modification at the surface as well as the large atomic spin-orbit...
Magnetotransport and spin dynamics in an electron gas formed at oxide interfaces
Magnetotransport spin dynamics oxide interfaces
2010/11/23
We investigate the spin-dependent transport properties of a two-dimensional electron gas formed
at oxides’ interface in the presence of a magnetic field. We consider several scenarios for the oxides’...
Local spin valve effect in lateral (Ga,Mn)As/GaAs spin Esaki diode devices
Local spin valve effect lateral (Ga,Mn)As/GaAs spin Esaki diode devices
2010/11/19
We report here on a local spin valve effect observed unambiguously in lateral all-semiconductor
all-electrical spin injection devices, employing p+−(Ga,Mn)As/n+−GaAs Esaki diode structure...