搜索结果: 1-15 共查到“凝聚态物理学 Magnetic field”相关记录16条 . 查询时间(0.39 秒)
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...
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...
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...
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...
Effect of weak magnetic field on quantum spin correlation in an s-wave superconductor
Effect of weak magnetic field quantum spin correlation
2010/11/22
We study the effect of a weak magnetic field on the state of the spins of a pair of electrons forming a Cooper pair in an s-wave superconductor. By perturbatively solving time-dependent Bogoliubov equ...
Intricacies of Strain and Magnetic Field Induced Charge Order Melting in Pr0.5Ca0.5MnO3 Thin Films
Intricacies of Strain Magnetic Field Induced Charge Order
2010/11/25
Intricacies of Strain and Magnetic Field Induced Charge Order Melting in Pr0.5Ca0.5MnO3 Thin Films.
Evolution of Microscopic Localization in Graphene in a Magnetic Field from Scattering Resonances to Quantum Dots
Evolution of Microscopic Localization Scattering Resonances Quantum Dots
2010/11/18
Graphene is a unique two–dimensional material with rich new physics and great promise for applications in electronic devices. Physical phenomena such as the half-integer quantum Hall effect and high c...
Critical Magnetic Field Ratio of Anisotropic Magnetic Superconductors
Upper critical field Lower critical field Ginzburg-Landau Theory anisotropy magnetic superconductors
2010/11/18
The upper critical field, the lower critical field and the critical magnetic field ratio of anisotropic magnetic superconductors are calculated by Ginzburg-Landau theory analytically. The effect of th...
Storage of quantum coherences as phase labeled local polarization using magnetic field gradients in NMR
Storage of quantum coherences phase labeled local polarization magnetic field gradients
2010/10/18
Long decay times were previously observed in samples such as 29Si, C60,Y2O3 by applying multi-
pulse nuclear magnetic resonance sequences to measure decoherence times. They are originated in
stimula...
Effect of a Magnetic Field on Tunneling Conductance in Normal Metal d-Wave Superconductor Interfaces
Zero bias conductance peak d-wave superconductivity Magnetic field
2010/9/29
Through the analytic solutions of the Bogoliubov de Gennes (BdG) equations the effect of a static and homogeneous magnetic field applied parallel to the interface of an NIS (N: Normal metal, S: superc...
The Role of the Boundary Conditions on the Critical Properties of Superconducting Rings Under the Action of a Tranversal Magnetic Field
Superconducting rings Ginzburg-Landau
2010/9/25
In the framework of the Ginzburg-Landau (GL) theory in the limit of a GL parameter much larger than unity, we study theoretically the critical behavior of a mesoscopic superconducting ring with neglig...
Influence of a Magnetic Field on the Energy Flow of Surface Polaritons Propagating in Semiconductor Cylinders
a Magnetic Field Surface Polaritons Semiconductor Cylinders
2010/10/22
This work reports the influence of a dc external magnetic field on the polaritons propagating in cylindrical systems. We present numerical results for the dispersion relation and energy flow for surfa...
Magnetic Field Induced Absorption in PbxEu1-xTe Magnetic Semiconductors
Magnetic Field Absorption PbxEu1-xTe Magnetic Semiconductors
2010/10/22
We report an investigation of the optical absorption spectrum, using non-polarized light, in PbxEu1¡xTe, x=0 and x=0.095, epitaxial thick layers grown by molecular beam epitaxy (MBE). The absorp...
Franz-Keldysh Effect in Semiconductor T-Wire in Applied Magnetic Field
Franz-Keldysh Effect Semiconductor T-Wire Applied Magnetic Field
2010/10/22
We have calculated the optical absorption spectra of magnetoexcitons in T-wire semiconductor. It is calculated using the semiconductor Bloch equations in time and real-space domains. The peak and the ...