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SUMMARY:Current redistribution effects in superconductors
DTSTART:20260527T090000Z
DTEND:20260527T110000Z
DTSTAMP:20260503T095700Z
UID:indico-event-52052@agenda.infn.it
CONTACT:cristian.pira@lnl.infn.it
DESCRIPTION:Speakers: Ruggero Vaglio (Università Degli Studi Di Napoli Fe
 derico II)\n\nSince early times in the story of superconductivity and nowa
 days\, anomalous peaks (or dips) close to the critical temperature Tc have
  been occasionally observed in measuring transport properties of supercond
 uctors. This can occur pretty often in resistivity and critical current me
 asurements of thin films or tapes\, but can also occur in other type of me
 asurements and\, in particular\, in rf superconducting cavity frequency or
  impedance measurement.These spectacular peaks have been\, by time\, inter
 preted in different ways\, often in terms of fancy theoretical models. How
 ever\, it has been now largely recognized that at least the anomalous peak
 s in thin films resistance versus temperature measurements and in tapes cr
 itical current measurements are due to “trivial” current redistributio
 n effects related to minor inhomogeneities of the measured samples.In this
  lecture we will review this topic and give evidence that current redistri
 bution effects can also be at the origin of the anomalous peaks (or dips) 
 observed in rf superconducting cavity frequency and impedance measurements
 .\n\nhttps://agenda.infn.it/event/52052/
LOCATION:M. B. Ceolin meeting room
URL:https://agenda.infn.it/event/52052/
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