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http://hdl.handle.net/10071/7306
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Campo DC | Valor | Idioma |
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dc.contributor.author | Grismayer, T. | - |
dc.contributor.author | Alves, E. P. | - |
dc.contributor.author | Fonseca, R. A. | - |
dc.contributor.author | Silva, L. O. | - |
dc.date.accessioned | 2014-05-21T13:53:23Z | - |
dc.date.available | 2014-05-21T13:53:23Z | - |
dc.date.issued | 2013-07 | - |
dc.identifier | http://dx.doi.org/10.1103/PhysRevLett.111.015005 | en_US |
dc.identifier.issn | 0031-9007 | por |
dc.identifier.uri | http://link.aps.org/doi/10.1103/PhysRevLett.111.015005 | en_US |
dc.identifier.uri | https://ciencia.iscte-iul.pt/public/pub/id/13329 | en_US |
dc.identifier.uri | http://hdl.handle.net/10071/7306 | - |
dc.description | WOS:000321278300010 (Nº de Acesso Web of Science) | - |
dc.description.abstract | The generation of dc magnetic fields in unmagnetized electron-ion shear flows is shown to be associated to either initial thermal effects or the onset of electron-scale shear instabilities, in particular the cold Kelvin-Helmholtz instability. This mechanism, intrinsic to shear gradients on the electron scale, is described through a kinetic model that predicts the growth and the saturation of the dc field in both scenarios. The theoretical results are confirmed by multidimensional particle-in-cell simulations, demonstrating the formation of long-lived magnetic fields (t similar to 100's w(pi)(-1)) along the full longitudinal extent of the shear layer, with a typical transverse width root gamma(0)c/w(pe), reaching magnitudes eB(dc)/m(e)cw(pe) similar to beta(0) root gamma(0) for an initial sharp shear. The case of an initial smooth shear is also discussed. | por |
dc.language.iso | eng | por |
dc.publisher | American Physical Society | por |
dc.rights | openAccess | por |
dc.title | dc-Magnetic-Field Generation in Unmagnetized Shear Flows | por |
dc.type | article | en_US |
dc.pagination | 015005 | por |
dc.publicationstatus | Publicado | por |
dc.peerreviewed | Sim | por |
dc.relation.publisherversion | The definitive version is available at: http://dx.doi.org/10.1103/PhysRevLett.111.015005 | por |
dc.journal | Physical Review Letters | por |
dc.distribution | Internacional | por |
dc.volume | 111 | por |
dc.number | 1 | por |
degois.publication.firstPage | 015005 | por |
degois.publication.issue | 1 | por |
degois.publication.title | Physical Review Letters | por |
dc.date.updated | 2014-05-21T13:51:45Z | - |
Aparece nas coleções: | CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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publisher_version_Phys Rev Lett 2013 Grismayer.pdf | 661,53 kB | Adobe PDF | Ver/Abrir |
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