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Field of first magnetic flux entry and pinning strength of superconductors for rf application measured with muon spin rotation

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Field of first magnetic flux entry and pinning strength of superconductors for rf application measured with muon spin rotation. / Junginger, T.; Abidi, S. H.; Maffett, R. D. et al.
In: Physical Review Accelerators and Beams, Vol. 21, No. 3, 032002, 16.03.2018.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Junginger, T, Abidi, SH, Maffett, RD, Buck, T, Dehn, MH, Gheidi, S, Kiefl, R, Kolb, P, Storey, D, Thoeng, E, Wasserman, W & Laxdal, RE 2018, 'Field of first magnetic flux entry and pinning strength of superconductors for rf application measured with muon spin rotation', Physical Review Accelerators and Beams, vol. 21, no. 3, 032002. https://doi.org/10.1103/PhysRevAccelBeams.21.032002

APA

Junginger, T., Abidi, S. H., Maffett, R. D., Buck, T., Dehn, M. H., Gheidi, S., Kiefl, R., Kolb, P., Storey, D., Thoeng, E., Wasserman, W., & Laxdal, R. E. (2018). Field of first magnetic flux entry and pinning strength of superconductors for rf application measured with muon spin rotation. Physical Review Accelerators and Beams, 21(3), Article 032002. https://doi.org/10.1103/PhysRevAccelBeams.21.032002

Vancouver

Junginger T, Abidi SH, Maffett RD, Buck T, Dehn MH, Gheidi S et al. Field of first magnetic flux entry and pinning strength of superconductors for rf application measured with muon spin rotation. Physical Review Accelerators and Beams. 2018 Mar 16;21(3):032002. doi: 10.1103/PhysRevAccelBeams.21.032002

Author

Junginger, T. ; Abidi, S. H. ; Maffett, R. D. et al. / Field of first magnetic flux entry and pinning strength of superconductors for rf application measured with muon spin rotation. In: Physical Review Accelerators and Beams. 2018 ; Vol. 21, No. 3.

Bibtex

@article{b5f83cf4b06b4522b48b2dcb2126c9a2,
title = "Field of first magnetic flux entry and pinning strength of superconductors for rf application measured with muon spin rotation",
abstract = "The performance of superconducting radiofrequency (SRF) cavities used for particle accelerators depends on two characteristic material parameters: field of first flux entry H-entry and pinning strength. The former sets the limit for the maximum achievable accelerating gradient, while the latter determines how efficiently flux can be expelled related to the maximum achievable quality factor. In this paper, a method based on muon spin rotation (mu SR) is developed to probe these parameters on samples. It combines measurements from two different spectrometers, one being specifically built for these studies and samples of different geometries. It is found that annealing at 1400 degrees C virtually eliminates all pinning. Such an annealed substrate is ideally suited to measure H-entry of layered superconductors, which might enable accelerating gradients beyond bulk niobium technology.",
keywords = "CAVITIES, NIOBIUM",
author = "T. Junginger and Abidi, {S. H.} and Maffett, {R. D.} and T. Buck and Dehn, {M. H.} and S. Gheidi and R. Kiefl and P. Kolb and D. Storey and E. Thoeng and W. Wasserman and Laxdal, {R. E.}",
year = "2018",
month = mar,
day = "16",
doi = "10.1103/PhysRevAccelBeams.21.032002",
language = "English",
volume = "21",
journal = "Physical Review Accelerators and Beams",
issn = "2469-9888",
publisher = "American Physical Society",
number = "3",

}

RIS

TY - JOUR

T1 - Field of first magnetic flux entry and pinning strength of superconductors for rf application measured with muon spin rotation

AU - Junginger, T.

AU - Abidi, S. H.

AU - Maffett, R. D.

AU - Buck, T.

AU - Dehn, M. H.

AU - Gheidi, S.

AU - Kiefl, R.

AU - Kolb, P.

AU - Storey, D.

AU - Thoeng, E.

AU - Wasserman, W.

AU - Laxdal, R. E.

PY - 2018/3/16

Y1 - 2018/3/16

N2 - The performance of superconducting radiofrequency (SRF) cavities used for particle accelerators depends on two characteristic material parameters: field of first flux entry H-entry and pinning strength. The former sets the limit for the maximum achievable accelerating gradient, while the latter determines how efficiently flux can be expelled related to the maximum achievable quality factor. In this paper, a method based on muon spin rotation (mu SR) is developed to probe these parameters on samples. It combines measurements from two different spectrometers, one being specifically built for these studies and samples of different geometries. It is found that annealing at 1400 degrees C virtually eliminates all pinning. Such an annealed substrate is ideally suited to measure H-entry of layered superconductors, which might enable accelerating gradients beyond bulk niobium technology.

AB - The performance of superconducting radiofrequency (SRF) cavities used for particle accelerators depends on two characteristic material parameters: field of first flux entry H-entry and pinning strength. The former sets the limit for the maximum achievable accelerating gradient, while the latter determines how efficiently flux can be expelled related to the maximum achievable quality factor. In this paper, a method based on muon spin rotation (mu SR) is developed to probe these parameters on samples. It combines measurements from two different spectrometers, one being specifically built for these studies and samples of different geometries. It is found that annealing at 1400 degrees C virtually eliminates all pinning. Such an annealed substrate is ideally suited to measure H-entry of layered superconductors, which might enable accelerating gradients beyond bulk niobium technology.

KW - CAVITIES

KW - NIOBIUM

U2 - 10.1103/PhysRevAccelBeams.21.032002

DO - 10.1103/PhysRevAccelBeams.21.032002

M3 - Journal article

VL - 21

JO - Physical Review Accelerators and Beams

JF - Physical Review Accelerators and Beams

SN - 2469-9888

IS - 3

M1 - 032002

ER -