2,221 research outputs found
Time-dependent Ginzburg-Landau model for light-induced superconductivity in the cuprate LESCO
Cavalleri and coworkers have discovered evidence of light-induced
superconductivity and related phenomena in several different materials. Here we
suggest that some features may be naturally interpreted using a time-dependent
Ginzburg-Landau model. In particular, we focus on the lifetime of the transient
state in LaEuSrCuO (LESCO), which is
remarkably long below about 25 K, but exhibits different behavior at higher
temperature.Comment: 5 pages, accepted by European Journal of Physics: Special Topic
Electronic Structure and Linear Optical Properties of SrCuOCl Studied from the First Principles Calculation
First-principles calculations with the full-potential linearized augmented
plane-wave (FP-LAPW) method have been performed to investigate detailed
electronic and linear optical properties of SrCuOCl, which is
a classical low-dimensional antiferromagnet (AFM) charge transfer ({\it CT})
insulator. Within the local-spin-density approximation (LSDA) plus the on-site
Coulomb interaction (LADA+) added on Cu 3d orbitals, our calculated band
gap and spin moments are well consistent with the experimental and other
theoretical values. The energy dispersion relation agrees well with the angle
resolved photoemission measurements. Its linear optical properties are
calculated within the electric-dipole approximation. The absorption spectrum is
found to agree well with the experimental result.Comment: 5 pages, 5 figure
Slip of fluid molecules on solid surfaces by surface diffusion
The mechanism of fluid slip on a solid surface has been linked to surface
diffusion, by which mobile adsorbed fluid molecules perform hops between
adsorption sites. However, slip velocity arising from this surface hopping
mechanism has been estimated to be significantly lower than that observed
experimentally. In this paper, we propose a re-adsorption mechanism for fluid
slip. Slip velocity predictions via this mechanism show the improved agreement
with experimental measurements
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