The onset of full coupling in multi-filament superconducting tapes exposed on an alternating external magnetic field

M.P. Oomen; J. Rieger; M. Leghissa; J.J. Rabbers; Bernard ten Haken

doi:10.1016/S0921-4534(00)01338-1

The onset of full coupling in multi-filament superconducting tapes exposed on an alternating external magnetic field

M.P. Oomen, J. Rieger, M. Leghissa, J.J. Rabbers, Bernard ten Haken

Faculty of Science and Technology

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

5 Citations (Scopus)

5 Downloads (Pure)

Abstract

At high amplitudes and frequencies of the external magnetic field, the superconducting filaments in a composite conductor are fully coupled. This causes a high magnetisation loss. Methods to decouple the filaments are well known for the low-Tc superconductors and have recently been applied also to high-Tc composites. In this paper, expressions are derived for the magnetic-field amplitude and frequency where full coupling sets in, as well as for the twist length required for decoupling the filaments in a general rectangular composite. A comparison is made with other expressions found in the literature. The filaments in a typical Bi-2223/Ag tape in parallel magnetic fields are decoupled just by twisting. In perpendicular fields a high transverse resistivity is required to decouple the filaments and decrease the magnetisation loss.

Original language	Undefined
Pages (from-to)	87-92
Number of pages	6
Journal	Physica C
Volume	340
Issue number	2-3
DOIs	https://doi.org/10.1016/S0921-4534(00)01338-1
Publication status	Published - 2000

Keywords

Bi-2223
AC loss
METIS-128722
Coupling currents
IR-74229
Multi-filament superconductors

Access to Document

10.1016/S0921-4534(00)01338-1

Cite this

@article{6ac4db3e8e4c49ab96e370f7014bf084,

title = "The onset of full coupling in multi-filament superconducting tapes exposed on an alternating external magnetic field",

abstract = "At high amplitudes and frequencies of the external magnetic field, the superconducting filaments in a composite conductor are fully coupled. This causes a high magnetisation loss. Methods to decouple the filaments are well known for the low-Tc superconductors and have recently been applied also to high-Tc composites. In this paper, expressions are derived for the magnetic-field amplitude and frequency where full coupling sets in, as well as for the twist length required for decoupling the filaments in a general rectangular composite. A comparison is made with other expressions found in the literature. The filaments in a typical Bi-2223/Ag tape in parallel magnetic fields are decoupled just by twisting. In perpendicular fields a high transverse resistivity is required to decouple the filaments and decrease the magnetisation loss.",

keywords = "Bi-2223, AC loss, METIS-128722, Coupling currents, IR-74229, Multi-filament superconductors",

author = "M.P. Oomen and J. Rieger and M. Leghissa and J.J. Rabbers and {ten Haken}, Bernard",

year = "2000",

doi = "10.1016/S0921-4534(00)01338-1",

language = "Undefined",

volume = "340",

pages = "87--92",

journal = "Physica C",

issn = "0921-4534",

publisher = "Elsevier",

number = "2-3",

}

TY - JOUR

T1 - The onset of full coupling in multi-filament superconducting tapes exposed on an alternating external magnetic field

AU - Oomen, M.P.

AU - Rieger, J.

AU - Leghissa, M.

AU - Rabbers, J.J.

AU - ten Haken, Bernard

PY - 2000

Y1 - 2000

N2 - At high amplitudes and frequencies of the external magnetic field, the superconducting filaments in a composite conductor are fully coupled. This causes a high magnetisation loss. Methods to decouple the filaments are well known for the low-Tc superconductors and have recently been applied also to high-Tc composites. In this paper, expressions are derived for the magnetic-field amplitude and frequency where full coupling sets in, as well as for the twist length required for decoupling the filaments in a general rectangular composite. A comparison is made with other expressions found in the literature. The filaments in a typical Bi-2223/Ag tape in parallel magnetic fields are decoupled just by twisting. In perpendicular fields a high transverse resistivity is required to decouple the filaments and decrease the magnetisation loss.

AB - At high amplitudes and frequencies of the external magnetic field, the superconducting filaments in a composite conductor are fully coupled. This causes a high magnetisation loss. Methods to decouple the filaments are well known for the low-Tc superconductors and have recently been applied also to high-Tc composites. In this paper, expressions are derived for the magnetic-field amplitude and frequency where full coupling sets in, as well as for the twist length required for decoupling the filaments in a general rectangular composite. A comparison is made with other expressions found in the literature. The filaments in a typical Bi-2223/Ag tape in parallel magnetic fields are decoupled just by twisting. In perpendicular fields a high transverse resistivity is required to decouple the filaments and decrease the magnetisation loss.

KW - Bi-2223

KW - AC loss

KW - METIS-128722

KW - Coupling currents

KW - IR-74229

KW - Multi-filament superconductors

U2 - 10.1016/S0921-4534(00)01338-1

DO - 10.1016/S0921-4534(00)01338-1

M3 - Article

SN - 0921-4534

VL - 340

SP - 87

EP - 92

JO - Physica C

JF - Physica C

IS - 2-3

ER -