Unusual magneto-transport of YBa2Cu3O7−δ films due to the interplay of anisotropy, random disorder and nanoscale periodic pinning
We study the general problem of a manifold of interacting elastic lines whose spatial correlations are strongly affected by the competition between random and ordered pinning. This is done through magneto-transport experiments with YBa _2 Cu _3 O _7− _δ thin films that contain a periodic vortex pinn...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2013-01-01
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| Series: | New Journal of Physics |
| Online Access: | https://doi.org/10.1088/1367-2630/15/10/103022 |
| _version_ | 1797751740177580032 |
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| author | J Trastoy V Rouco C Ulysse R Bernard A Palau T Puig G Faini J Lesueur J Briatico J E Villegas |
| author_facet | J Trastoy V Rouco C Ulysse R Bernard A Palau T Puig G Faini J Lesueur J Briatico J E Villegas |
| author_sort | J Trastoy |
| collection | DOAJ |
| description | We study the general problem of a manifold of interacting elastic lines whose spatial correlations are strongly affected by the competition between random and ordered pinning. This is done through magneto-transport experiments with YBa _2 Cu _3 O _7− _δ thin films that contain a periodic vortex pinning array created via masked ion irradiation, in addition to the native random pinning. The strong field-matching effects we observe suggest the prevalence of periodic pinning, and indicate that at the matching field each vortex line is bound to an artificial pinning site. However, the vortex-glass transition dimensionality—quasi-two dimensional instead of the usual three dimensional—evidences reduced vortex-glass correlations along the vortex line. This is also supported by an unusual angular dependence of the magneto-resistance, which greatly differs from that of Bose-glass systems. A quantitative analysis of the angular magneto-resistance allows us to link this behaviour to the enhancement of the system anisotropy, a collateral effect of the ion irradiation. |
| first_indexed | 2024-03-12T16:54:00Z |
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| id | doaj.art-cb988091792a4b71bebc74fa9623c710 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:54:00Z |
| publishDate | 2013-01-01 |
| publisher | IOP Publishing |
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| series | New Journal of Physics |
| spelling | doaj.art-cb988091792a4b71bebc74fa9623c7102023-08-08T11:03:57ZengIOP PublishingNew Journal of Physics1367-26302013-01-01151010302210.1088/1367-2630/15/10/103022Unusual magneto-transport of YBa2Cu3O7−δ films due to the interplay of anisotropy, random disorder and nanoscale periodic pinningJ Trastoy0V Rouco1C Ulysse2R Bernard3A Palau4T Puig5G Faini6J Lesueur7J Briatico8J E Villegas9Unité Mixte de Physique CNRS/Thales, 1 Avenue Augustin Fresnel, F-91767 Palaiseau, France; Université Paris Sud , F-91405 Orsay, FranceUnité Mixte de Physique CNRS/Thales, 1 Avenue Augustin Fresnel, F-91767 Palaiseau, France; Université Paris Sud , F-91405 Orsay, France; Institut de Ciència de Materials de Barcelona , ICMAB-CSIC, Campus de la UAB, E-08193 Bellaterra, SpainCNRS, Phynano Team, Laboratoire de Photonique et de Nanostructures, Route de Nozay, F-91460 Marcoussis, FranceUnité Mixte de Physique CNRS/Thales, 1 Avenue Augustin Fresnel, F-91767 Palaiseau, France; Université Paris Sud , F-91405 Orsay, FranceInstitut de Ciència de Materials de Barcelona , ICMAB-CSIC, Campus de la UAB, E-08193 Bellaterra, SpainInstitut de Ciència de Materials de Barcelona , ICMAB-CSIC, Campus de la UAB, E-08193 Bellaterra, SpainCNRS, Phynano Team, Laboratoire de Photonique et de Nanostructures, Route de Nozay, F-91460 Marcoussis, FranceLPEM, ESPCI-CNRS-UPMC, 10 rue Vauquelin, F-75231 Paris, FranceUnité Mixte de Physique CNRS/Thales, 1 Avenue Augustin Fresnel, F-91767 Palaiseau, France; Université Paris Sud , F-91405 Orsay, FranceUnité Mixte de Physique CNRS/Thales, 1 Avenue Augustin Fresnel, F-91767 Palaiseau, France; Université Paris Sud , F-91405 Orsay, FranceWe study the general problem of a manifold of interacting elastic lines whose spatial correlations are strongly affected by the competition between random and ordered pinning. This is done through magneto-transport experiments with YBa _2 Cu _3 O _7− _δ thin films that contain a periodic vortex pinning array created via masked ion irradiation, in addition to the native random pinning. The strong field-matching effects we observe suggest the prevalence of periodic pinning, and indicate that at the matching field each vortex line is bound to an artificial pinning site. However, the vortex-glass transition dimensionality—quasi-two dimensional instead of the usual three dimensional—evidences reduced vortex-glass correlations along the vortex line. This is also supported by an unusual angular dependence of the magneto-resistance, which greatly differs from that of Bose-glass systems. A quantitative analysis of the angular magneto-resistance allows us to link this behaviour to the enhancement of the system anisotropy, a collateral effect of the ion irradiation.https://doi.org/10.1088/1367-2630/15/10/103022 |
| spellingShingle | J Trastoy V Rouco C Ulysse R Bernard A Palau T Puig G Faini J Lesueur J Briatico J E Villegas Unusual magneto-transport of YBa2Cu3O7−δ films due to the interplay of anisotropy, random disorder and nanoscale periodic pinning New Journal of Physics |
| title | Unusual magneto-transport of YBa2Cu3O7−δ films due to the interplay of anisotropy, random disorder and nanoscale periodic pinning |
| title_full | Unusual magneto-transport of YBa2Cu3O7−δ films due to the interplay of anisotropy, random disorder and nanoscale periodic pinning |
| title_fullStr | Unusual magneto-transport of YBa2Cu3O7−δ films due to the interplay of anisotropy, random disorder and nanoscale periodic pinning |
| title_full_unstemmed | Unusual magneto-transport of YBa2Cu3O7−δ films due to the interplay of anisotropy, random disorder and nanoscale periodic pinning |
| title_short | Unusual magneto-transport of YBa2Cu3O7−δ films due to the interplay of anisotropy, random disorder and nanoscale periodic pinning |
| title_sort | unusual magneto transport of yba2cu3o7 δ films due to the interplay of anisotropy random disorder and nanoscale periodic pinning |
| url | https://doi.org/10.1088/1367-2630/15/10/103022 |
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