Benvenuti nell'Anagrafe della Ricerca d'Ateneo
La valutazione delle attività di ricerca che si svolgono nelle università ha assunto un'importanza rilevante sia per l'intero sistema universitario sia all'interno di ogni singolo ateneo. Roma Tre si è quindi dotata di idonei strumenti informativi in grado di supportare al meglio le azioni di monitoraggio e di valutazione delle attività di ricerca svolte nei propri dipartimentied ha realizzato una Anagrafe della Ricerca di Ateneo.
EnglishWe report measurements of the magnetic field induced microwave complex resistivity in REBa2Cu3O7-delta thin films, with RE = Y, Sm. Measurements are performed at 48GHz by means of a resonant cavity in the end-wall-replacement configuration. The magnetic field dependence is investigated by applying a moderate (0.8 T) magnetic field along the c-axis. The measured vortex-state complex resistivity in YBa2Cu3O7-delta and SmBa2Cu3O7-delta is analyzed within the well-known models for vortex dynamics. It is shown that attributing the observed response to vortex motion alone leads to inconsistencies in the as-determined vortex parameters (such as the vortex viscosity and the pinning constant). By contrast, attributing the entire response to field-induced pair breaking leads to a nearly quantitative description of the data.
Silva, E., Pompeo, N., Marcon, R., Fastampa, R., Giura, M., Sarti, S., et al. (2006). Mixed-state microwave response in superconducting cuprates. JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 19(7-8), 571-577 [10.1007/s10948-006-0131-5].
| Titolo: | Mixed-state microwave response in superconducting cuprates | |
| Autori: | ||
| Data di pubblicazione: | 2006 | |
| Rivista: | ||
| Citazione: | Silva, E., Pompeo, N., Marcon, R., Fastampa, R., Giura, M., Sarti, S., et al. (2006). Mixed-state microwave response in superconducting cuprates. JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 19(7-8), 571-577 [10.1007/s10948-006-0131-5]. | |
| Abstract: | We report measurements of the magnetic field induced microwave complex resistivity in REBa2Cu3O7-delta thin films, with RE = Y, Sm. Measurements are performed at 48GHz by means of a resonant cavity in the end-wall-replacement configuration. The magnetic field dependence is investigated by applying a moderate (0.8 T) magnetic field along the c-axis. The measured vortex-state complex resistivity in YBa2Cu3O7-delta and SmBa2Cu3O7-delta is analyzed within the well-known models for vortex dynamics. It is shown that attributing the observed response to vortex motion alone leads to inconsistencies in the as-determined vortex parameters (such as the vortex viscosity and the pinning constant). By contrast, attributing the entire response to field-induced pair breaking leads to a nearly quantitative description of the data. | |
| Handle: | http://hdl.handle.net/11590/135206 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/11590/135206
Copyright © 2022