Near-field microwave magnetic nanoscopy of superconducting radio frequency cavity materials

Tamin Tai, Behnood G. Ghamsari, Thomas R. Bieler, Teng Tan, X. X. Xi, Steven M. Anlage

Research output: Contribution to journalArticle

  • 6 Citations

Abstract

A localized measurement of the RF critical field on superconducting radio frequency (SRF) cavity materials is a key step to identify specific defects that produce quenches of SRF cavities. Two measurements are performed to demonstrate these capabilities with a near-field scanning probe microwave microscope. The first is a third harmonic nonlinear measurement on a high Residual-Resistance- Ratio bulk Nb sample showing strong localized nonlinear response, with surface RF magnetic field Bsurface∼ 102 mT. The second is a raster scanned harmonic response image on a MgB2 thin film demonstrating a uniform nonlinear response over large areas.

LanguageEnglish (US)
Article number232603
JournalApplied Physics Letters
Volume104
Issue number23
DOIs
StatePublished - Jun 9 2014

Profile

near fields
radio frequencies
microwaves
cavities
microwave probes
harmonics
microscopes
scanning
defects
thin films
magnetic fields

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Tai, T., Ghamsari, B. G., Bieler, T. R., Tan, T., Xi, X. X., & Anlage, S. M. (2014). Near-field microwave magnetic nanoscopy of superconducting radio frequency cavity materials. Applied Physics Letters, 104(23), [232603]. DOI: 10.1063/1.4881880

Near-field microwave magnetic nanoscopy of superconducting radio frequency cavity materials. / Tai, Tamin; Ghamsari, Behnood G.; Bieler, Thomas R.; Tan, Teng; Xi, X. X.; Anlage, Steven M.

In: Applied Physics Letters, Vol. 104, No. 23, 232603, 09.06.2014.

Research output: Contribution to journalArticle

Tai T, Ghamsari BG, Bieler TR, Tan T, Xi XX, Anlage SM. Near-field microwave magnetic nanoscopy of superconducting radio frequency cavity materials. Applied Physics Letters. 2014 Jun 9;104(23). 232603. Available from, DOI: 10.1063/1.4881880
Tai, Tamin ; Ghamsari, Behnood G. ; Bieler, Thomas R. ; Tan, Teng ; Xi, X. X. ; Anlage, Steven M./ Near-field microwave magnetic nanoscopy of superconducting radio frequency cavity materials. In: Applied Physics Letters. 2014 ; Vol. 104, No. 23.
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