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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Sobolewski, Roman
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Publications (5/5 displayed)
- 2017Superconducting order parameter fluctuations in NbN/NiCu and NbTiN/NiCu bilayer nanostripes for photon detectioncitations
- 2015Superconducting and ferromagnetic properties of NbN/NiCu and NbTiN/NiCu bilayer nanostructures for photon detectioncitations
- 2011Current distribution in Y–Ba–Cu–O superconducting microbridges containing Pi-Shaped channel for easy vortex motion
- 2009Novel superconducting proximized heterostructures for ultrafast photodetectioncitations
- 2000Double sign reversal of the vortex Hall effect in YBa2Cu3O7-δ thin films in the strong pinning limit of low magnetic fieldscitations
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article
Double sign reversal of the vortex Hall effect in YBa2Cu3O7-δ thin films in the strong pinning limit of low magnetic fields
Abstract
Measurements of the Hall effect and the resistivity in twinned YBa2Cu3O7-δ thin films in magnetic fields B oriented parallel to the crystallographic c axis and to the twin boundaries reveal a double sign reversal of the Hall coefficient for B≤1 T. In high transport current densities, or with B tilted off the twin boundaries by 5°, the second sign reversal vanishes. The power-law scaling of the Hall conductivity to the longitudinal conductivity in the mixed state is strongly modified in the regime of the second sign reversal. Our observations are interpreted as strong, disorder-type dependent vortex pinning and confirm that the Hall conductivity in high-temperature superconductors is not independent of pinning.