1,130 research outputs found
Doping dependence of the vortex glass and sublimation transitions in the high- superconductor LaSrCuO as determined from macroscopic measurements
Magnetization and ac-susceptibility measurements are used to characterize the
mixed phase of the high-temperature cuprate superconductor
LaSrCuO over a large range of doping (0.075
0.20). The first order vortex lattice phase transition line , the
upper critical field and the second peak have been
investigated up to high magnetic fields (8 Tesla applied perpendicular to the
planes). Our results reveal a strong doping dependence of the magnetic
phase diagram, which can mainly be explained by the increasing anisotropy with
underdoping. Within our interpretation, the first order vortex lattice phase
transition is due to the sublimation (rather than melting) of the vortex
lattice into a gas of pancake vortices, whereas the second peak is related to
the transition to a more disordered vortex glass state.Comment: 7 pages, 5 figure
The Pennsylvania Comparative Negligence Act - An Alien Intruder in the House of Common Law
Using the Pennyslvania [sic] legislature\u27s recent enactment of a comparative negligence statute as a vehicle, the author asserts that the courts can and should reevaluate common law concepts as they apply to cases which, although pending at the time of a legislative change in the common law, are not subject to the basically prospective statutory provisions
Synthesis of α-Hydroxy Fatty Acids from Fatty Acids by Intermediate α-Chlorination with TCCA under Solvent-Free Conditions: A Way to Valorization of Waste Fat Biomasses
N- and S-oxygenation activity of truncated human flavin-containing monooxygenase 3 and its common polymorphic variants
A small angle neutron scattering study of the vortex matter in La{2-x}Sr{x}CuO{4} (x=0.17)
The magnetic phase diagram of slightly overdoped La{2-x}Sr{x}CuO{4} (x=0.17)
is characterised by a field-induced hexagonal to square transition of the
vortex lattice at low fields (~0.4 Tesla) [R. Gilardi et al., Phys. Rev. Lett.
88, 217003 (2002)]. Here we report on a small angle neutron scattering study of
the vortex lattice at higher fields, that reveals no further change of the
coordination of the square vortex lattice up to 10.5 Tesla applied
perpendicular to the CuO2 planes. Moreover, it is found that the diffraction
signal disappears at temperatures well below Tc, due to the melting of the
vortex lattice.Comment: 3 pages, 2 figures. Presented at the New3SC-4 meeting, San Diego,
Jan. 16-21 2003; to be published in Int. J. Mod. Phys.
Management of downy mildew of sweet basil (Ocimum basilicum) caused by Peronospora belbahrii by means of resistance inducers, fungicides, biocontrol agents and natural products.
Effect of simulated soil solarization and organic amendments on Fusarium Wilt of rocket and basil under controlled conditions.
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