Magnetic properties of superconducting permanent magnets of YBa2Cu3Ox

Satoshi Gotoh; Masato Murakami; Hiroyuki Fujimoto; Naoki Koshizuka

doi:10.1016/0921-4534(91)91374-D

Magnetic properties of superconducting permanent magnets of YBa₂Cu₃O_x

Satoshi Gotoh, Masato Murakami, Hiroyuki Fujimoto, Naoki Koshizuka

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

DC magnetic properties were measured in the melt processed YBa₂Cu₃O_x after field-cooling using a SQUID magnetometer. The magnetic properties estimated from the demagnetizing curves showed that the samples worked as strong bulk permanent magnets. This is attributed to the large pinning forces obtained in the bulk superconductors. The dependence of the magnet properties on the applied fields in field-cooling indicates that the properties can be continuously changed using the field-cooling technique. The magnet properties of the Melt-Powder-Melt-Growth processed YBa₂Cu₃O_x with 1.5mm thickness obtained at 5 K after field-cooling in 10 kOe (H//c) are as follows: the residual flux density, B_r is 9.6kG, the coercive force, _bH_c is 33kOe and the maximum energy product, (BH)_max is 110MGOe.

Original language	English
Pages (from-to)	2499-2500
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	185-189
Issue number	PART 4
DOIs	https://doi.org/10.1016/0921-4534(91)91374-D
Publication status	Published - 1991 Dec 1
Externally published	Yes

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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abstract = "DC magnetic properties were measured in the melt processed YBa2Cu3Ox after field-cooling using a SQUID magnetometer. The magnetic properties estimated from the demagnetizing curves showed that the samples worked as strong bulk permanent magnets. This is attributed to the large pinning forces obtained in the bulk superconductors. The dependence of the magnet properties on the applied fields in field-cooling indicates that the properties can be continuously changed using the field-cooling technique. The magnet properties of the Melt-Powder-Melt-Growth processed YBa2Cu3Ox with 1.5mm thickness obtained at 5 K after field-cooling in 10 kOe (H//c) are as follows: the residual flux density, Br is 9.6kG, the coercive force, bHc is 33kOe and the maximum energy product, (BH)max is 110MGOe.",

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AU - Gotoh, Satoshi

AU - Murakami, Masato

AU - Fujimoto, Hiroyuki

AU - Koshizuka, Naoki

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N2 - DC magnetic properties were measured in the melt processed YBa2Cu3Ox after field-cooling using a SQUID magnetometer. The magnetic properties estimated from the demagnetizing curves showed that the samples worked as strong bulk permanent magnets. This is attributed to the large pinning forces obtained in the bulk superconductors. The dependence of the magnet properties on the applied fields in field-cooling indicates that the properties can be continuously changed using the field-cooling technique. The magnet properties of the Melt-Powder-Melt-Growth processed YBa2Cu3Ox with 1.5mm thickness obtained at 5 K after field-cooling in 10 kOe (H//c) are as follows: the residual flux density, Br is 9.6kG, the coercive force, bHc is 33kOe and the maximum energy product, (BH)max is 110MGOe.

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