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Please use this identifier to cite or link to this item: http://dspace.mediu.edu.my:8181/xmlui/handle/123456789/8303
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dc.creatorKunchur M. N.-
dc.creatorCheng Wu-
dc.creatorArcos D. H.-
dc.creatorSaracila G.-
dc.creatorEun-Mi Choi-
dc.creatorKim Kijoon H.P.-
dc.creatorKang W. N.-
dc.creatorSung-Ik Lee-
dc.date2003-
dc.date.accessioned2013-06-01T10:47:38Z-
dc.date.available2013-06-01T10:47:38Z-
dc.date.issued2013-06-01-
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332003000400013-
dc.identifierhttp://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2003&volume=33&issue=4&spage=705-
dc.identifier.urihttp://koha.mediu.edu.my:8181/jspui/handle/123456789/8303-
dc.descriptionWe have investigated the low-temperature (T < Tc=10) mixed-state current-voltage (IV) response of magnesium diboride films beyond the point where the superconductivity is completely destroyed and the system enters the normal state. The resistance-versus-current R(I) curves are extremely steep and featureless, with a critical current density j c, marking the onset of dissipation, that is unusually high (j c>j d/10) with respect to the depairing current density j d. At large flux densities Hc2/10 <img id="_x0000_i1026" src="../../../../img/revistas/bjp/v33n4/a13img01.gif" align=absbottom>B <img id="_x0000_i1027" src="../../../../img/revistas/bjp/v33n4/a13img01.gif" align=absbottom>Hc2, the R(I) curve has a functional shape that is largely independent of B, indicating that the rise in resistivity with increasing current occurs mainly due to pair-breaking rather than flux motion. The macroscopic destruction current I*, which drives the system normal, has a <img id="_x0000_i1028" src="../../../../img/revistas/bjp/v33n4/a13img02.gif" align=absbottom>flux-density dependence, suggesting that the vortices mainly reduce the effective cross section over which a current of effective density j ~ j d flows.-
dc.publisherSociedade Brasileira de Física-
dc.sourceBrazilian Journal of Physics-
dc.titleMixed-state transport characteristics of magnesium diboride films-
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