Results 111 to 120 of about 20,616 (293)
Non-dipolar magnetic fields in Ap stars
, 2008 An arbitrary initial magnetic field in an A star evolves into a stable equilibrium. Simulations are presented of the formation of non-axisymmetric equilibria consisting of twisted flux tubes meandering under the surface of the star, and analytic arguments are given relating the stability and form of these equilibria.
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, 2020 FAPESP - FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULOCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOSingle and fixed size core, core-shell nanoparticles of iron oxides coated with a silica layer of tunable thickness were ...
Knobel, M. +4 more
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LiHoF4 as a spin-half non-standard quantum Ising system
SciPost PhysicsLiHoF$_{4}$ is a magnetic material known for its Ising-type anisotropy, making it a model system for studying quantum magnetism. However, the theoretical description of LiHoF$_{4}$ using the quantum Ising model has shown discrepancies in its phase ...
Tomer Dollberg, Moshe Schechter
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Nuclear Magnetic Resonance with the Distant Dipolar Field
, 2005 186 pages, 43 figures, Ph.D.
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Non-Dipolar Components of Pulsar Magnetic Fields
, 2010 The recent observations indicate that the presence of non-dipolar pulsars magnetic fields. Post-Newtonian approximation(PN) used in solving Einstein’s field equation in general relativity was made to derive the much more complicated non-dipolar pulsar ...
Sado, Feyisso
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Angewandte Chemie International Edition, EarlyView.A linear polymer, poly(2,3‐dihydroxynaphthalene), when insolubilized, leads to self‐assembly into a hydroquinone–quinone donor+acceptor semiconducting architecture through H‐bonding and π‐stacking interactions. The polymer behaves as a heterogeneous photocatalyst in water for H2O2 production via water oxidation and O2 reduction under visible light.
Koki Yoshida +4 more
wiley +1 more source
More stable yet bimodal geodynamo during the Cretaceous superchron?
Geophysical Research Letters, 2016 We report palaeomagnetic and 40Ar/39Ar dating results from two sequences of basaltic lava flows deposited at the same locality in western China, yet separated in time by ~50 Myr: one set lies within the Cretaceous normal superchron at 112–115 Ma and a ...
Florian Lhuillier +8 more
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Dynamics of dipolar spinor condensates in the external magnetic field
Acta Physica Sinica, 2008 The equilibrium populations and the coherent off-equilibrium spin mixing with dipole-dipole interaction dynamics in an external magnetic field are investigated. By adjusting the external magnetic field, spin-exchange interaction and the aspect ratio of the potential well we can control the tunneling of the hyperfine components, the oscillation of the ...
null Li Ju-Ping +3 more
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Equilibria and oscillations of magnetised neutron stars
, 2010 We investigate equilibrium configurations and oscillation spectra of neutron stars,modelled as rotating magnetised fluid bodies in Newtonian gravity. We also explorethe idea that these model neutron stars could have dynamics analogous to rigid-bodyfree ...
Lander, Samuel Kenneth
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, 2020 The chain dynamics of short-chain perfluoropolyether melts confined in Vycor nanoporous media has been characterized by field cycling nuclear magnetic resonance relaxometry and the dipolar correlation effect.
Kimmich R. +3 more
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