The Role of Thermal Phase Fluctuations in Underdoped YBCO Films

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dc.creatorZuev, Yuri
dc.creatorSkinta, John A.
dc.creatorKim, Mun-Seog
dc.creatorLemberger, Thomas R.
dc.creatorWertz, E.
dc.creatorWu, K.
dc.creatorLi, Q.
dc.date2004-07-06
dc.date.accessioned2026-07-07T02:59:02Z
dc.date.available2026-07-07T02:59:02Z
dc.descriptionThe effect of thermal phase fluctuations (TPF's) on the ab-plane penetration depth, lambda(T), of thin YBa2Cu3O(7-delta) (YBCO) films is found to be much smaller than expected from the paradigm of cuprates as weakly-coupled 2D superconducting layers. A 2D vortex-pair-unbinding transition is observed, but the effective thickness for fluctuations is the film thickness, not a CuO bilayer thickness. In a strongly underdoped YBCO film, Tc= 34 K, TPF's suppress Tc by only about 3 K. They cannot be a significant factor in the suppression of Tc and emergence of the pseudogap with underdoping.
dc.description4 pages, 3 figures, submitted to Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/cond-mat/0407113
dc.identifierhttp://arxiv.org/abs/cond-mat/0407113
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24351
dc.subjectSuperconductivity
dc.titleThe Role of Thermal Phase Fluctuations in Underdoped YBCO Films
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