搜索结果: 1-15 共查到“凝聚态物理学 B field”相关记录47条 . 查询时间(0.141 秒)
Effect of Impurities on the Superheating field of Type II superconductors
Impurities the Superheating field Type II superconductors
2012/2/27
We consider the effect of nonmagnetic and magnetic impurities on the superheating field $H_s$ in a type-II superconductor. We solved the Eilenberger equations, which take into account the nonlinear pa...
Magnetoresistivity and Acoustoelectronic Effects in a Tilted Magnetic Field in $p$-Si/SiGe/Si Structures with an Anisotropic $g$ Factor
Magnetoresistivity Acoustoelectronic Effects
2010/11/25
Magnetoresistivity xx and xy and the acoustoelectronic effects are measured in p-Si/SiGe/Si
with an impurity concentration p = 1.99 × 1011 cm−2 in the temperature range 0.3–2.0 K and an tilte...
Upper Critical Field of Pressure-Induced Superconductor EuFe$_2$As$_2$
Upper Critical Field Superconductor
2010/11/25
We have carried out high-field resistivity measurements up to 27T in EuFe2As2 at P =2.5GPa,
a virtually optimal pressure for the P-induced superconductivity, where Tc =30K. The Bc2−Tc
phase di...
Carrier heating and high-order harmonics generation in doped graphene by a strong ac electric field
Carrier heating high-order harmonics generation strong ac electric field
2010/11/25
The nonlinear response of electrons (holes) in doped graphene on ac pumping is concidered the-
oretically for the frequency region above the energy relaxation rate but below the momentum and
carrier...
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...
Anisotropic upper critical field and a possible Fulde-Ferrel-Larkin-Ovchinnikov state in a stoichiometric pnictide superconductor LiFeAs
Anisotropic upper critical field possible Fulde-Ferrel-Larkin-Ovchinnikov state
2010/11/25
Measurements of the temperature and angular dependencies of the upper critical fields Hc2 of a
stoichiometric single crystal LiFeAs in pulsed magnetic fields up to 50 T were performed using a tunnel ...
Eighth-order phase-field-crystal model for two-dimensional crystallization
Eighth-order phase-field-crystal model two-dimensional crystallization
2010/11/25
We present a derivation of the recently proposed eighth order phase field crystal model [Jaatinen et al. , Phys. Rev. E 80, 031602 (2009)] for the crystallization of a solid from an undercooled melt.
Magnetic field dependence of pairing interaction in ferromagnetic superconductors with triplet pairing
Magnetic field dependence of pairing interaction ferromagnetic superconductors triplet pairing
2010/11/23
It is developed a microscopic description of superconductivity in ferromagnetic materials with
triplet pairing triggered by the exchange of magnetic fluctuations. Instead widely used paramagnon model...
Direct observation of band-gap closure for a semiconducting carbon nanotube in a large parallel magnetic field
Direct observation of band-gap closure semiconducting carbon nanotube large parallel magnetic field
2010/11/23
We have investigated the magnetoconductance of semiconducting carbon nanotubes (CNTs) in
pulsed, parallel magnetic elds up to 60 T, and report the direct observation of the predicted band-gap closur...
Anisotropic ultrafast electron dynamics induced by high-field terahertz pulses in n-doped InGaAs
Anisotropic ultrafast electron dynamics high-field terahertz pulses
2010/11/23
The anisotropic effective mass of electrons is directly measured using time-resolved THz-
pump/THz-probe techniques in a n-doped InGaAs semiconductor thin film. A microscopic theory
is used to attri...
Effect of anisotropy on the field induced quantum critical properties of the three dimensional s=1/2 Heisenberg model
Effect of anisotropy field induced quantum critical properties
2010/11/18
The field induced quantum critical properties of the three dimensional spin-1/2 anisotropic antifer-romagnetic Heisenberg model has been studied. We have investigated the quantum phase transition betw...
Spin wave calculation of the field-dependent magnetization pattern around an impurity in Heisenberg antiferromagnets
Spin wave calculation field-dependent magnetization pattern Heisenberg antiferromagnets
2010/11/18
We consider the magnetic- eld dependent spatial magnetization pattern around a general impurity embedded in a Heisenberg antiferromagnet using both an analytical and a numerical spin wave approach. Th...
Level crossings and zero-field splitting in the \{Cr$_8$\}-cubane spin-cluster by inelastic neutron scattering and magnetization studies
Level crossings zero-field splitting inelastic neutron scattering magnetization studies
2010/11/17
Inelastic neutron scattering in variable magnetic field and high-field magnetization measurements,at the milikelvin temperature range, were performed to gain insight into the low-energy magnetic excit...
Calculation of thermostable directions and the influence of bias electric field on the propagation of the Lamb and SH waves in langasite single crystal plates
Calculation of thermostable directions influence of bias electric field
2010/11/25
Paper is presented the results of computer simulation. Effect of the dc electric field nfluence on the propagation of Lamb and SH waves and its temperature coefficients of delay in piezoelectric langa...
Magnetic field induced reduction of the low-temperature superfluid density in cuprate superconductors
Magnetic field induced reduction cuprate superconductors
2010/11/18
The weak magnetic field induced reduction of the low-temperature superfluid density in cuprate
superconductors is studied based on the kinetic energy driven superconducting mechanism. The
electromag...