Results 41 to 50 of about 12,182,554 (372)

Role of the magnetospheric and ionospheric currents in the generation of the equatorial scintillations during geomagnetic storms [PDF]

open access: yesAnnales Geophysicae, 2004
The equatorial ionosphere parameters, Kp, Dst, AU and AL indices characterized contribution of different magnetospheric and ionospheric currents to the H-component of geomagnetic field are examined to test the geomagnetic activity effect on the ...
L. Z. Biktash
doaj   +1 more source

Decay of superfluid currents in the interacting one-dimensional Bose gas [PDF]

open access: yes, 2009
We examine the superfluid properties of a 1D Bose gas in a ring trap based on the model of Lieb and Liniger. While the 1D Bose gas has nonclassical rotational inertia and exhibits quantization of velocities, the metastability of currents depends ...
A. J. Leggett   +5 more
core   +1 more source

Ring current particle distributions derived from ring current magnetic field measurements [PDF]

open access: yesJournal of Geophysical Research, 1968
Ring current particle energy density distribution for symmetric portion of magnetic storm derived from current magnetic field profile ...
R. A. Hoffman, L. J. Cahill
openaire   +1 more source

A quantitative model of the magnetosphere with poloidal vector fields [PDF]

open access: yesAnnales Geophysicae, 1998
A quantitative model of the magnetospheric magnetic field is developed using poloidal vector fields. This formalism is applied to the ring current region, the distant field and the return currents.
J. C. Kosik
doaj   +1 more source

ANÁLISIS DEL COMPORTAMIENTO DEL SISTEMA DE CORRIENTESEQUIVALENTES SQ EN LAS ESTACIONES DE LA RED DE OBSERVATORIOSMAGNÉTICOS PERMANENTES DE LA REPÚBLICAARGENTINA (ROMP) DURANTE 2019-2021

open access: yesAnales (Asociación Física Argentina), 2022
The ionospheric currents that flow in the E layer, the magnetospheric currents and the induced currents in the lithosphere under the station are the sources of geomagnetic variations in the calm days Sq.
P. A. Sallago
doaj   +1 more source

Basic image and dynamic variation processes of planetary ring currents

open access: yes地球与行星物理论评
Ring currents, an important current system formed by the azimuthal drift of charged particles in planetary magnetospheres, play a key role in disturbing planetary magnetic fields and driving magnetospheric dynamics.
Haobo Fu, Chao Yue
doaj   +1 more source

Persistent current in isolated mesoscopic rings

open access: yesPhysical Review B, 1994
Persistant current in isolated mesoscopic rings is studied using the continium and tight-binding models of independent electrons. The calculation is performed with disorder and also at finite temperature. In the absence of disorder and at zero temperature agreement is obtained with earlier results by D. Loss et.
Weisz, J. F.   +2 more
openaire   +4 more sources

Light-induced valley currents and magnetization in graphene rings

open access: yes, 2009
We study the non-equilibrium dynamics in a mesoscopic graphene ring excited by picoseconds shaped electromagnetic pulses. We predict an ultrafast buildup of charge polarization, currents and orbital magnetization.
Berakdar, J., Moskalenko, A. S.
core   +1 more source

Filtering of spin currents based on ballistic ring [PDF]

open access: yes, 2007
Quantum interference effects in rings provide suitable means for controlling spin at mesoscopic scales. Here we apply such a control mechanism to the spin-dependent transport in a ballistic quasi one dimensional ring patterned in two dimensional electron
Ando T   +20 more
core   +1 more source

Aromaticity and Antiaromaticity: How to Define Them

open access: yesChemistry
Aromaticity and antiaromaticity are concepts that are often used to explain and predict the physical and chemical properties of cyclic conjugated compounds.
Marija Baranac-Stojanović
doaj   +1 more source

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