搜索结果: 151-165 共查到“理学 spin”相关记录504条 . 查询时间(0.534 秒)
Spin precession and modulation in ballistic cylindrical nanowires due to the Rashba effect
Spin precession ballistic cylindrical nanowires
2010/11/24
The spin precession in a cylindrical semiconductor nanowire due to Rashba spin-orbit coupling has been investigated theoretically using an InAs nanowire containing a surface two-dimensional electron g...
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 and Charge Fluctuations in the $\alpha$-structure Layered Nitride Superconductors
Spin Charge Fluctuations alpha$-structure Layered Nitride Superconductors
2010/11/24
To explore conditions underlying the superconductivity in electron-doped TiNCl where Tc = 16
K, we calculate the electronic structure, Wannier functions and spin and charge usceptibilities
using rs...
Anisotropic spin fluctuations and superconductivity in "115'' heavy fermion compounds: 59Co NMR study in PuCoGa5
StoAnisotropic spin fluctuations superconductivity NMR study in PuCoGa5
2010/11/24
We report results of 59Co nuclear magnetic resonance measurements on a single crystal of super-
conducting PuCoGa5 in its normal state. The nuclear spin-lattice relaxation rates and the Knight shifts...
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...
Observation of the developed Cu-spin correlation in the Bi-2201 high-Tc superconductor using muon spin relaxation
Observation of the developed Cu-spin correlation muon spin relaxation
2010/11/24
A systematic muon-spin-relaxation study in Bi-2201 high-Tc cuprates has revealed for the first
time that the Cu-spin correlation (CSC) is developed at low temperatures below 2 K in a wide
range of h...
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...
Itinerant Spin Excitations in SrFe2As2 Measured by Inelastic Neutron Scattering
Itinerant Spin Excitations Inelastic Neutron Scattering
2010/11/23
We report inelastic neutron scattering measurements of the magnetic excitations in SrFe2As2,
the parent of a family of iron-based superconductors. The data extend throughout the Brillouin
zone and u...
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...
The spin parameter of uniformly rotating compact stars
spin parameter of uniformly compact stars
2010/12/21
We study the dimensionless spin parameter j (= cJ/(GM2)) of uniformly rotating neutron stars
and quark stars in general relativity. We show numerically that the maximum value of the spin
parameter o...
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...
Study of the Spin-weighted Spheroidal Equation in the Case of s=1
the Spin-weighted Spheroidal Equation the Case of s=1
2010/11/23
We present series study of using the method of super-symmetric quantum mechanics(SUSYQM) solving the spin-weighted spheroidal wave equation. In this paper, we obtain the first four terms of super-pot...
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...