Anisotropy of superconducting MgB2 as seen in electron spin resonance and magnetization data

dc.contributor.author Simon, F.
dc.contributor.author Jánossy, A.
dc.contributor.author Fehér, T
dc.contributor.author Murányi, F.
dc.contributor.author Garaj, S.
dc.contributor.author Forró, L.
dc.contributor.author Petrovic, C.
dc.contributor.author Bud'ko, Sergey L.
dc.contributor.author Lapertot, G.
dc.contributor.author Kogan, V. G.
dc.contributor.department Ames National Laboratory
dc.date.accessioned 2022-08-04T22:11:04Z
dc.date.available 2022-08-04T22:11:04Z
dc.date.issued 2001-07-23
dc.description.abstract We observed the conduction electron spin resonance (CESR) in fine powders of MgB2 both in the superconducting and normal states. The Pauli susceptibility is chi (s) = 2.0 x 10(-5) emu/mole in the temperature range of 450 to 600 K. The spin relaxation rate has an anomalous temperature dependence. The CESR measured below T-c, at several frequencies suggests that MgB2 is a strongly anisotropic superconductor with the upper critical field, H-c2, ranging between 2 and 16 T. The high-field reversible magnetization data of a randomly oriented powder sample are well described assuming that MgB2 is an anisotropic superconductor with H-c2(ab)/H-c2(c) approximate to 6-9.
dc.description.comments This article is published as Simon, Ferenc, András Jánossy, Titusz Fehér, Ferenc Murányi, S. Garaj, L. Forró, C. Petrovic et al. "Anisotropy of superconducting MgB 2 as seen in electron spin resonance and magnetization data." Physical Review Letters 87, no. 4 (2001): 047002. DOI: 10.1103/PhysRevLett.87.047002. Copyright 2001 American Physical Society. Posted with permission.
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/7rKoOqEr
dc.language.iso en
dc.publisher American Physical Society
dc.source.uri https://doi.org/10.1103/PhysRevLett.87.047002 *
dc.title Anisotropy of superconducting MgB2 as seen in electron spin resonance and magnetization data
dc.type Article
dspace.entity.type Publication
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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