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Giant vortex state in perforated aluminum microsquares
, 2008
"... We investigate the nucleation of superconductivity in a uniform perpendicular magnetic field H in aluminum microsquares containing a few (2 and 4) submicron holes (antidots). The normal/superconducting phase boundary Tc(H) of these structures shows a quite different behavior in low and high fields. ..."
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cusps at the same values of Φ/Φ0 (where Φ is the applied flux threading the total square area and Φ0 is the superconducting flux quantum), while the background on Tc(H) becomes quasilinear, indicating that a giant vortex state is established. The influence of the actual geometries on Tc(H) is analyzed
Dilation of the Giant Vortex State in a Mesoscopic
, 2008
"... We have experimentally investigated the magnetisation of a mesoscopic aluminum loop at temperatures well below the superconducting transition temperature Tc. The flux quantisation of the superconducting loop was investigated with a µHall magnetometer in magnetic field intensities between ±100Gauss. ..."
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giant vortex state nucleating towards either the inner or the outer side of the loop. These findings are in agreement with recent theoretical reports. PACS numbers: 74.60.Ec,74.25.Dw,73.23.b,74.20.De,74.76.w Ever since the original observation and explanation of flux quantization1
Dilation of the Giant Vortex State in a Mesoscopic Superconducting Ring.
, 15
"... this paper were performed on a micron sized superconducting aluminium ring placed on top a Hall magnetometer. The Hall magnetometer was etched out of a GaAs=Ga 0:7 Al 0:3 As heterostructure. The mobility and electron density of the twodimensional electron gas was = 42T ..."
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this paper were performed on a micron sized superconducting aluminium ring placed on top a Hall magnetometer. The Hall magnetometer was etched out of a GaAs=Ga 0:7 Al 0:3 As heterostructure. The mobility and electron density of the twodimensional electron gas was = 42T
Transition to the giant vortex state for a BoseEinstein condensate in a rotating anharmonic trap
, 2008
"... ..."
2 2nd Critical Speed Ωc2: Vortex lattice + hole state [CY]. 3 3rd Critical Speed Ωc3: Emergence of a giant vortex state [CRY].
"... Intro & General Setting BoseEinstein Condensation A quantum Bose (atomic) gas shows a phase transition at low temperature = ⇒ a macroscopic fraction of the particles occupy the same oneparticle state Ψ called the condensate wave function. The manybody wave function ΨN(~x1,...,~xN) ∈ L2(R3N) ..."
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Intro & General Setting BoseEinstein Condensation A quantum Bose (atomic) gas shows a phase transition at low temperature = ⇒ a macroscopic fraction of the particles occupy the same oneparticle state Ψ called the condensate wave function. The manybody wave function ΨN(~x1,...,~xN) ∈ L2(R3N
Impulses and Physiological States in Theoretical Models of Nerve Membrane
 Biophysical Journal
, 1961
"... ABSTRACT Van der Pol's equation for a relaxation oscillator is generalized by the addition of terms to produce a pair of nonlinear differential equations with either a stable singular point or a limit cycle. The resulting "BVP model " has two variables of state, representing excitabi ..."
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ABSTRACT Van der Pol's equation for a relaxation oscillator is generalized by the addition of terms to produce a pair of nonlinear differential equations with either a stable singular point or a limit cycle. The resulting "BVP model " has two variables of state, representing
Vortex patterns in a superconductingferromagnetic rod
"... A superconducting rod with a magnetic moment on top develops vortices obtained here through 3D calculations of the GinzburgLandau theory. The inhomogeneity of the applied field brings new properties to the vortex patterns that vary according to the rod thickness. We find that for thin rods (disks) ..."
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) the vortex patterns are similar to those obtained in presence of a homogeneous magnetic field instead because they consist of giant vortex states. For thick rods novel patterns are obtained as vortices are curve lines in space that exit through the lateral surface.
Vortex Structure Around a Magnetic Dot in Planar
, 2008
"... The problem of the giant vortex state around a magnetic dot which is embedded in a superconducting film is investigated. The full nonlinear, selfconsistent GinzburgLandau equations are solved numerically in order to calculate the free energy, the order parameter of the host superconductor, the int ..."
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Cited by 2 (0 self)
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The problem of the giant vortex state around a magnetic dot which is embedded in a superconducting film is investigated. The full nonlinear, selfconsistent GinzburgLandau equations are solved numerically in order to calculate the free energy, the order parameter of the host superconductor
Results 1  10
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2,571