AC susceptibility harmonic response in YBCO single crystals with different oxygen contents

We measured up to the seventh harmonic response of the complex ac susceptibility (χ′ n - jχ″ n ; n = 1-7) vs. temperature, in YB 2 C 3 O x single crystals with different oxygen contents (6.5 ≤ x ≤ 7). The ac field was applied in presence of an external dc field both parallel to the c-axis of the cry...

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Detalles Bibliográficos
Autores principales:	Valenzuela, Sergio O., Bekeris, Victoria Isabel
Publicado:	2002
Materias:	AC susceptibility Deoxygenated single crystals Harmonics Pinning YBCO Harmonic analysis Magnetic fields Magnetic flux Magnetic hysteresis Magnetic moments Single crystals Superconducting transition temperature Thermal effects Yttrium barium copper oxides Deoxygenation High temperature superconductors
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v377_n4_p466_Moreno http://hdl.handle.net/20.500.12110/paper_09214534_v377_n4_p466_Moreno
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_09214534_v377_n4_p466_Moreno
record_format	dspace
spelling	paper:paper_09214534_v377_n4_p466_Moreno2025-07-30T18:26:58Z AC susceptibility harmonic response in YBCO single crystals with different oxygen contents Valenzuela, Sergio O. Bekeris, Victoria Isabel AC susceptibility Deoxygenated single crystals Harmonics Pinning YBCO Harmonic analysis Magnetic fields Magnetic flux Magnetic hysteresis Magnetic moments Single crystals Superconducting transition temperature Thermal effects Yttrium barium copper oxides Deoxygenation High temperature superconductors We measured up to the seventh harmonic response of the complex ac susceptibility (χ′ n - jχ″ n ; n = 1-7) vs. temperature, in YB 2 C 3 O x single crystals with different oxygen contents (6.5 ≤ x ≤ 7). The ac field was applied in presence of an external dc field both parallel to the c-axis of the crystals. We show evidence that deoxygenation leads to a reduction of bulk pinning strength evidenced by a decrease in the value of the third, fifth and seventh harmonics. We compare our measurements with a numerical model that includes effects of flux creep and sample geometry where the activation barrier depends explicitly on temperature. © 2002 Elsevier Science B.V. All rights reserved. Fil:Valenzuela, S.O. 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. 2002 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v377_n4_p466_Moreno http://hdl.handle.net/20.500.12110/paper_09214534_v377_n4_p466_Moreno
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	AC susceptibility Deoxygenated single crystals Harmonics Pinning YBCO Harmonic analysis Magnetic fields Magnetic flux Magnetic hysteresis Magnetic moments Single crystals Superconducting transition temperature Thermal effects Yttrium barium copper oxides Deoxygenation High temperature superconductors
spellingShingle	AC susceptibility Deoxygenated single crystals Harmonics Pinning YBCO Harmonic analysis Magnetic fields Magnetic flux Magnetic hysteresis Magnetic moments Single crystals Superconducting transition temperature Thermal effects Yttrium barium copper oxides Deoxygenation High temperature superconductors Valenzuela, Sergio O. Bekeris, Victoria Isabel AC susceptibility harmonic response in YBCO single crystals with different oxygen contents
topic_facet	AC susceptibility Deoxygenated single crystals Harmonics Pinning YBCO Harmonic analysis Magnetic fields Magnetic flux Magnetic hysteresis Magnetic moments Single crystals Superconducting transition temperature Thermal effects Yttrium barium copper oxides Deoxygenation High temperature superconductors
description	We measured up to the seventh harmonic response of the complex ac susceptibility (χ′ n - jχ″ n ; n = 1-7) vs. temperature, in YB 2 C 3 O x single crystals with different oxygen contents (6.5 ≤ x ≤ 7). The ac field was applied in presence of an external dc field both parallel to the c-axis of the crystals. We show evidence that deoxygenation leads to a reduction of bulk pinning strength evidenced by a decrease in the value of the third, fifth and seventh harmonics. We compare our measurements with a numerical model that includes effects of flux creep and sample geometry where the activation barrier depends explicitly on temperature. © 2002 Elsevier Science B.V. All rights reserved.
author	Valenzuela, Sergio O. Bekeris, Victoria Isabel
author_facet	Valenzuela, Sergio O. Bekeris, Victoria Isabel
author_sort	Valenzuela, Sergio O.
title	AC susceptibility harmonic response in YBCO single crystals with different oxygen contents
title_short	AC susceptibility harmonic response in YBCO single crystals with different oxygen contents
title_full	AC susceptibility harmonic response in YBCO single crystals with different oxygen contents
title_fullStr	AC susceptibility harmonic response in YBCO single crystals with different oxygen contents
title_full_unstemmed	AC susceptibility harmonic response in YBCO single crystals with different oxygen contents
title_sort	ac susceptibility harmonic response in ybco single crystals with different oxygen contents
publishDate	2002
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v377_n4_p466_Moreno http://hdl.handle.net/20.500.12110/paper_09214534_v377_n4_p466_Moreno
work_keys_str_mv	AT valenzuelasergioo acsusceptibilityharmonicresponseinybcosinglecrystalswithdifferentoxygencontents AT bekerisvictoriaisabel acsusceptibilityharmonicresponseinybcosinglecrystalswithdifferentoxygencontents
_version_	1840325880097800192

AC susceptibility harmonic response in YBCO single crystals with different oxygen contents

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