dc.date.accessioned | 2019-03-05T14:23:32Z | |
dc.date.available | 2019-03-05T14:23:32Z | |
dc.date.created | 2018-08-07T11:49:26Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Golovchanskiy, Igor A. Pan, A. V. Johansen, Tom Henning George, Jonathan Rudnev, Igor A. Rosenfeld, Anatoly Fedoseev, Sergey A. . Origin of magnetic flux-jumps in Nb films subject to mechanical vibrations and corresponding magnetic perturbations. Physical Review B. 2018, 97(1) | |
dc.identifier.uri | http://hdl.handle.net/10852/67060 | |
dc.description.abstract | In this paper the origin of flux-jumps in Nb thin films is established during magnetization measurements using a vibrating sample magnetometer (VSM). Magnetization measurements of the flux avalanche activity show its strong dependence on frequency and amplitude of VSM vibration. In particular, under certain conditions the vibrations induce a transition from a stable superconducting critical state to an undercritical state, accompanied by the 20-fold drop in the magnetic moment. These features allow the elucidation of the origin of the flux-jumps. In contrast to the commonly assumed thermomagnetic instabilities to be responsible for the flux-jumps in Nb films, our results provide solid support for an alternative explanation being due to criticality-built instability well represented by a sandpile. Considering properties of the flux-flow during a flux avalanche regime allows us to estimate nonuniformity of a magnetic field in a VSM sample space developed as a result of vibrations. | en_US |
dc.language | EN | |
dc.title | Origin of magnetic flux-jumps in Nb films subject to mechanical vibrations and corresponding magnetic perturbations | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Golovchanskiy, Igor A. | |
dc.creator.author | Pan, A. V. | |
dc.creator.author | Johansen, Tom Henning | |
dc.creator.author | George, Jonathan | |
dc.creator.author | Rudnev, Igor A. | |
dc.creator.author | Rosenfeld, Anatoly | |
dc.creator.author | Fedoseev, Sergey A. | |
cristin.unitcode | 185,15,4,10 | |
cristin.unitname | Kondenserte fasers fysikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1600159 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review B&rft.volume=97&rft.spage=&rft.date=2018 | |
dc.identifier.jtitle | Physical Review B | |
dc.identifier.volume | 97 | |
dc.identifier.issue | 1 | |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevB.97.014524 | |
dc.identifier.urn | URN:NBN:no-70244 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2469-9950 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/67060/1/PhysRevB.97.014524.pdf | |
dc.type.version | PublishedVersion | |