Magnetic and Transport Studies on Electron-doped CeFeAsO1-xFx Superconductor

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dc.creatorChong, S. V.
dc.creatorMochiji, T.
dc.creatorSato, S.
dc.creatorKadowaki, K.
dc.date2008-08-03
dc.date.accessioned2026-07-07T12:22:03Z
dc.date.available2026-07-07T12:22:03Z
dc.descriptionThe magnetic and transport behaviors of cerium substituted iron oxy-arsenide superconductor with x = 0.1 to 0.4 fluoride (F) doping have been investigated in this report. Temperature dependent susceptibility and resistivity measurements showed the 0.1 F-doped sample (CeFeAsO0.9F0.1) has a superconducting transition temperature (Tc) of around 30 K. With increasing doping beyond x = 0.2 Tc saturates to around 40 K. Temperature dependent susceptibility measured in different magnetic fields for the under-doped sample showed Meissner effect in low field and the diamagnetism is still visible up to 1 Tesla, with an obvious magnetic transition below 5 K, perhaps originating from magnetic ordering of the rare earth cerium. The corresponding field dependent resistance versus temperature measurements indicated a broadening of less than 3 K for Tc at mid-point by increasing the field to 5 Tesla indicating rather low anisotropy. An estimated upper critical field of more than 48 Tesla and accordingly an estimated maximum coherence length of 2.6 nm were obtained confirming the high upper critical field with a short coherence length for this superconductor.
dc.description9 pages, 5 figures, Journal of The Physical Society of Japan (Proceedings of the International Symposium on Fe-oxypnictide Superconductors, Tokyo, Japan), submitted
dc.identifierhttps://arxiv.org/abs/0808.0296
dc.identifierhttp://arxiv.org/abs/0808.0296
dc.identifierJournal of the Physical Society of Japan Vol. 77 (2008) Supplement C, pp. 27-31
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/213524
dc.subjectSuperconductivity
dc.titleMagnetic and Transport Studies on Electron-doped CeFeAsO1-xFx Superconductor
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