Phase separation in the vicinity of the surface of $κ$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]Br by fast cooling

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dc.creatorYoneyama, N.
dc.creatorSasaki, T.
dc.creatorKobayashi, N.
dc.creatorIkemoto, Y.
dc.creatorKimura, H.
dc.date2005-07-07
dc.date2005-11-24
dc.date.accessioned2026-07-07T06:41:17Z
dc.date.available2026-07-07T06:41:17Z
dc.descriptionPartial suppression of superconductivity by fast cooling has been observed in the organic superconductor $κ$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]Br by two means: a marked sample size effect on the magnetic susceptibility and direct imaging of insulating regions by scanning microregion infrared reflectance spectroscopy. Macroscopic insulating regions are found in the vicinity of the crystalline surface after fast cooling, with diameters of 50--100 $μ$m and depths of a few $μ$m. The very large in-plane penetration depth reported to date ($\sim$ 24--100 $μ$m) can be explained by the existence of the insulating regions.
dc.descriptionSeveral rhetoric alternations to avoid misleadings. 6 pages, 3 figures. to be publihsed in Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/cond-mat/0507155
dc.identifierhttp://arxiv.org/abs/cond-mat/0507155
dc.identifierPhys. Rev. B 72, 214519 (2005) (5 pages)
dc.identifierdoi:10.1103/PhysRevB.72.214519
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/101616
dc.subjectSuperconductivity
dc.titlePhase separation in the vicinity of the surface of $κ$-(BEDT-TTF)$_2$Cu[N(CN)$_2$]Br by fast cooling
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