Bridge in micron-sized Bi2Sr2CaCu2O8+y sample act as converging lens for vortices
| Autor: | Puig, Joaqu��n, Bolecek, N��stor Ren�� Cejas, S��nchez, Jazm��n Arag��n, Dolz, Moira In��s, Konczykowski, Marcin, Fasano, Yanina |
|---|---|
| Přispěvatelé: | Instituto Balseiro [Bariloche], Comisión Nacional de Energía Atómica [ARGENTINA] (CNEA)-Universidad Nacional de Cuyo [Mendoza] (UNCUYO), Comisión Nacional de Energía Atómica [ARGENTINA] (CNEA), Universidad Nacional de Cuyo [Mendoza] (UNCUYO), Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET), Centro Atómico Bariloche [Argentine], Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET)-Comisión Nacional de Energía Atómica [ARGENTINA] (CNEA), Universidad Nacional de San Luis [San Luis] (UNSL), Laboratoire des Solides Irradiés (LSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Superconductivity (cond-mat.supr-con)
[PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con] PACS numbers: 74.25.U v 74.25.Ha 74.25.Dw Condensed Matter::Superconductivity Condensed Matter - Superconductivity Soft Condensed Matter (cond-mat.soft) FOS: Physical sciences Condensed Matter - Soft Condensed Matter |
| Zdroj: | Physica C: Superconductivity and its Applications Physica C: Superconductivity and its Applications, 2021, 590, pp.1353948. ⟨10.1016/j.physc.2021.1353948⟩ |
| ISSN: | 0921-4534 |
| Popis: | We report on direct imaging of vortex matter nucleated in micron-sized Bi2Sr2CaCu2O8+y superconducting samples that incidentally present a bridge structure. We find that when nucleating vortices in a field-cooling condition the deck of the bridge acts as a converging lens for vortices. By means of Bitter decoration images allowing us to quantify the enhancement of vortex-vortex interaction energy per unit length in the deck of the bridge, we are able to estimate that the deck is thinner than 0.6\,$\mu$m. We show that the structural properties of vortex matter nucleated in micron-sized thin samples are not significantly affected by sample-thickness variations of the order of half a micron, an important information for type-II superconductors-based mesoscopic technological devices. Comment: 7 pages, 4 figures |
| Databáze: | OpenAIRE |
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