Surface barrier and bulk pinning in MgB$_2$ superconductor

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dc.creatorPissas, M.
dc.creatorMoraitakis, E.
dc.creatorStamopoulos, D.
dc.creatorPapavassiliou, G.
dc.creatorPsycharis, V.
dc.creatorKoutandos, S.
dc.date2001-08-09
dc.date.accessioned2026-07-07T02:42:23Z
dc.date.available2026-07-07T02:42:23Z
dc.descriptionWe present a modified method of preparation of the new superconductor MgB$_2$. The polycrystalline samples were characterized using x-ray and magnetic measurements. The surface barriers control the isothermal magnetization loops in powder samples. In bulk as prepared samples we always observed symmetric magnetization loops indicative of the presence of a bulk pinning mechanism. Magnetic relaxation measurements in the bulk sample reveal a crossover of surface barrier to bulk pinning.
dc.description5 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0108153
dc.identifierhttp://arxiv.org/abs/cond-mat/0108153
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18121
dc.subjectSuperconductivity
dc.subjectMaterials Science
dc.titleSurface barrier and bulk pinning in MgB$_2$ superconductor
dc.typetext

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