Attojoule calorimetry of mesoscopic superconducting loops

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dc.creatorBourgeois, O.
dc.creatorSkipetrov, S. E.
dc.creatorOng, F.
dc.creatorChaussy, J.
dc.date2004-11-10
dc.date.accessioned2026-07-07T03:02:01Z
dc.date.available2026-07-07T03:02:01Z
dc.descriptionWe report the first experimental evidence of nontrivial thermal behavior of the simplest mesoscopic system - a superconducting loop. By measuring the specific heat C of an array of 450,000 noninteracting aluminum loops with very high accuracy of ~20 fJ/K, we show that the loops go through a periodic sequence of phase transitions (with period of an integer number of magnetic flux quanta) as the magnetic flux threading each loop is increased. The transitions are well described by the Ginzburg-Landau theory and are accompanied by discontinuities of C of only several thousands of Boltzmann constants k_B.
dc.descriptionRevTeX, 4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0411273
dc.identifierhttp://arxiv.org/abs/cond-mat/0411273
dc.identifierPhys. Rev. Lett. 94, 057007 (2005)
dc.identifierdoi:10.1103/PhysRevLett.94.057007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25252
dc.subjectMesoscale and Nanoscale Physics
dc.subjectSuperconductivity
dc.titleAttojoule calorimetry of mesoscopic superconducting loops
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