Thermal patterning of superconducting films

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The transient shape control of a superconducting high Tc film by selective optical heating has been addressed in this work, using a non-conventional technique that combines the application of a pulsed magnetic field and the optical heating of the superconducting film by a synchronized pulsed laser....

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Autores principales:	Tortarolo, Marina, Ferrari, Hernán Javier, Marconi, Mario Carlos, Bekeris, Victoria Isabel
Publicado:	2004
Materias:	Critical state Dc magnetization Short time Zero field cooled (ZFC) superconducting films Cathode ray oscilloscopes Cryostats Heating Magnetic fields Magnetic flux Magnetization Mathematical models Micrometers Pulsed laser applications Synchronization Superconducting films
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v408-410_n1-4_p599_Tortarolo http://hdl.handle.net/20.500.12110/paper_09214534_v408-410_n1-4_p599_Tortarolo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09214534_v408-410_n1-4_p599_Tortarolo
record_format	dspace
spelling	paper:paper_09214534_v408-410_n1-4_p599_Tortarolo2023-06-08T15:50:45Z Thermal patterning of superconducting films Tortarolo, Marina Ferrari, Hernán Javier Marconi, Mario Carlos Bekeris, Victoria Isabel Critical state Dc magnetization Short time Critical state Dc magnetization Short time Zero field cooled (ZFC) superconducting films Cathode ray oscilloscopes Cryostats Heating Magnetic fields Magnetic flux Magnetization Mathematical models Micrometers Pulsed laser applications Synchronization Superconducting films The transient shape control of a superconducting high Tc film by selective optical heating has been addressed in this work, using a non-conventional technique that combines the application of a pulsed magnetic field and the optical heating of the superconducting film by a synchronized pulsed laser. A zero field cooled (ZFC) film was partially protected by a mask before exposing it to the laser radiation. The temperature at the illuminated area rises causing very fast local lowering of the vortex pinning force or may even rise above Tc. As a result, flux penetrates completely the heated area and an effective smaller sample remains in a superconducting critical state. Flux penetration is measured with a pick-up coil for different positions of the mask. Results are described within the critical state model for a strip, where the time integrated voltage signal is approximated to the flux difference between the initial ZFC sample and the final critical state of the "new" (cold) ZFC sample. © 2004 Elsevier B.V. All rights reserved. Fil:Tortarolo, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ferrari, H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Marconi, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bekeris, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v408-410_n1-4_p599_Tortarolo http://hdl.handle.net/20.500.12110/paper_09214534_v408-410_n1-4_p599_Tortarolo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Critical state Dc magnetization Short time Critical state Dc magnetization Short time Zero field cooled (ZFC) superconducting films Cathode ray oscilloscopes Cryostats Heating Magnetic fields Magnetic flux Magnetization Mathematical models Micrometers Pulsed laser applications Synchronization Superconducting films
spellingShingle	Critical state Dc magnetization Short time Critical state Dc magnetization Short time Zero field cooled (ZFC) superconducting films Cathode ray oscilloscopes Cryostats Heating Magnetic fields Magnetic flux Magnetization Mathematical models Micrometers Pulsed laser applications Synchronization Superconducting films Tortarolo, Marina Ferrari, Hernán Javier Marconi, Mario Carlos Bekeris, Victoria Isabel Thermal patterning of superconducting films
topic_facet	Critical state Dc magnetization Short time Critical state Dc magnetization Short time Zero field cooled (ZFC) superconducting films Cathode ray oscilloscopes Cryostats Heating Magnetic fields Magnetic flux Magnetization Mathematical models Micrometers Pulsed laser applications Synchronization Superconducting films
description	The transient shape control of a superconducting high Tc film by selective optical heating has been addressed in this work, using a non-conventional technique that combines the application of a pulsed magnetic field and the optical heating of the superconducting film by a synchronized pulsed laser. A zero field cooled (ZFC) film was partially protected by a mask before exposing it to the laser radiation. The temperature at the illuminated area rises causing very fast local lowering of the vortex pinning force or may even rise above Tc. As a result, flux penetrates completely the heated area and an effective smaller sample remains in a superconducting critical state. Flux penetration is measured with a pick-up coil for different positions of the mask. Results are described within the critical state model for a strip, where the time integrated voltage signal is approximated to the flux difference between the initial ZFC sample and the final critical state of the "new" (cold) ZFC sample. © 2004 Elsevier B.V. All rights reserved.
author	Tortarolo, Marina Ferrari, Hernán Javier Marconi, Mario Carlos Bekeris, Victoria Isabel
author_facet	Tortarolo, Marina Ferrari, Hernán Javier Marconi, Mario Carlos Bekeris, Victoria Isabel
author_sort	Tortarolo, Marina
title	Thermal patterning of superconducting films
title_short	Thermal patterning of superconducting films
title_full	Thermal patterning of superconducting films
title_fullStr	Thermal patterning of superconducting films
title_full_unstemmed	Thermal patterning of superconducting films
title_sort	thermal patterning of superconducting films
publishDate	2004
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v408-410_n1-4_p599_Tortarolo http://hdl.handle.net/20.500.12110/paper_09214534_v408-410_n1-4_p599_Tortarolo
work_keys_str_mv	AT tortarolomarina thermalpatterningofsuperconductingfilms AT ferrarihernanjavier thermalpatterningofsuperconductingfilms AT marconimariocarlos thermalpatterningofsuperconductingfilms AT bekerisvictoriaisabel thermalpatterningofsuperconductingfilms
_version_	1768545516746964992

Thermal patterning of superconducting films

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