Study of flux dynamics in NdBCO single crystal before and after heavy ions irradiation

Monica Zamboni; Noriko Chikumoto; Takato Machi; Naoki Koshizuka; Marcin Konczykowski; Masato Murakami

doi:10.1016/S0921-4534(01)00098-3

Study of flux dynamics in NdBCO single crystal before and after heavy ions irradiation

Monica Zamboni, Noriko Chikumoto, Takato Machi, Naoki Koshizuka, Marcin Konczykowski, Masato Murakami

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

The magnetic properties in NdBCO single crystal fabricated by flux growing method in controlled oxygen atmosphere have been investigated using both SQUID magnetometer and magneto-optical (M-O) technique before and after heavy ions irradiation. An external magnetic field was applied parallel to the sample c-axis up to 7 T at different temperatures. Critical current densities were obtained using the extended Bean model from the hysteresis loops as measured by SQUID. The M-O images were collected using a special facility equipped with a superconductor magnet able to reach 8 T. The indicator film was produced in ISTEC. The M-O images were associated to the data obtained by analysing the magnetization curves. It was found that the irradiation strongly affects the magnetic behaviour. The direct and detailed visualization of the field behaviour provided by magneto optical images allows a more precise understanding of the magnetization loops.

Original language	English
Pages (from-to)	309-312
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	354
Issue number	1-4
DOIs	https://doi.org/10.1016/S0921-4534(01)00098-3
Publication status	Published - 2001 May 1

Keywords

Flux dynamics
Magneto-optical
NdBCO single crystals

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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Zamboni, M., Chikumoto, N., Machi, T., Koshizuka, N., Konczykowski, M., & Murakami, M. (2001). Study of flux dynamics in NdBCO single crystal before and after heavy ions irradiation. Physica C: Superconductivity and its applications, 354(1-4), 309-312. https://doi.org/10.1016/S0921-4534(01)00098-3

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abstract = "The magnetic properties in NdBCO single crystal fabricated by flux growing method in controlled oxygen atmosphere have been investigated using both SQUID magnetometer and magneto-optical (M-O) technique before and after heavy ions irradiation. An external magnetic field was applied parallel to the sample c-axis up to 7 T at different temperatures. Critical current densities were obtained using the extended Bean model from the hysteresis loops as measured by SQUID. The M-O images were collected using a special facility equipped with a superconductor magnet able to reach 8 T. The indicator film was produced in ISTEC. The M-O images were associated to the data obtained by analysing the magnetization curves. It was found that the irradiation strongly affects the magnetic behaviour. The direct and detailed visualization of the field behaviour provided by magneto optical images allows a more precise understanding of the magnetization loops.",

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AU - Zamboni, Monica

AU - Chikumoto, Noriko

AU - Machi, Takato

AU - Koshizuka, Naoki

AU - Konczykowski, Marcin

AU - Murakami, Masato

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N2 - The magnetic properties in NdBCO single crystal fabricated by flux growing method in controlled oxygen atmosphere have been investigated using both SQUID magnetometer and magneto-optical (M-O) technique before and after heavy ions irradiation. An external magnetic field was applied parallel to the sample c-axis up to 7 T at different temperatures. Critical current densities were obtained using the extended Bean model from the hysteresis loops as measured by SQUID. The M-O images were collected using a special facility equipped with a superconductor magnet able to reach 8 T. The indicator film was produced in ISTEC. The M-O images were associated to the data obtained by analysing the magnetization curves. It was found that the irradiation strongly affects the magnetic behaviour. The direct and detailed visualization of the field behaviour provided by magneto optical images allows a more precise understanding of the magnetization loops.

AB - The magnetic properties in NdBCO single crystal fabricated by flux growing method in controlled oxygen atmosphere have been investigated using both SQUID magnetometer and magneto-optical (M-O) technique before and after heavy ions irradiation. An external magnetic field was applied parallel to the sample c-axis up to 7 T at different temperatures. Critical current densities were obtained using the extended Bean model from the hysteresis loops as measured by SQUID. The M-O images were collected using a special facility equipped with a superconductor magnet able to reach 8 T. The indicator film was produced in ISTEC. The M-O images were associated to the data obtained by analysing the magnetization curves. It was found that the irradiation strongly affects the magnetic behaviour. The direct and detailed visualization of the field behaviour provided by magneto optical images allows a more precise understanding of the magnetization loops.

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