Pauli paramagnetic effects on vortices in superconducting TmNi2B2C

L. Debeer-Schmitt, M. R. Eskildsen, Masanori Ichioka, K. Machida, N. Jenkins, C. D. Dewhurst, A. B. Abrahamsen, S. L. Bud'Ko, P. C. Canfield

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The magnetic field distribution around the vortices in TmNi2B2C in the paramagnetic phase was studied experimentally as well as theoretically. The vortex form factor, measured by small-angle neutron scattering, is found to be field independent up to 0.6Hc2 followed by a sharp decrease at higher fields. The data are fitted well by solutions to the Eilenberger equations when paramagnetic effects due to the exchange interaction with the localized 4f Tm moments are included. The induced paramagnetic moments around the vortex cores act to maintain the field contrast probed by the form factor.

Original languageEnglish
Article number167001
JournalPhysical Review Letters
Volume99
Issue number16
DOIs
Publication statusPublished - Oct 16 2007

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vortices
form factors
moments
neutron scattering
magnetic fields
interactions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Debeer-Schmitt, L., Eskildsen, M. R., Ichioka, M., Machida, K., Jenkins, N., Dewhurst, C. D., ... Canfield, P. C. (2007). Pauli paramagnetic effects on vortices in superconducting TmNi2B2C. Physical Review Letters, 99(16), [167001]. https://doi.org/10.1103/PhysRevLett.99.167001

Pauli paramagnetic effects on vortices in superconducting TmNi2B2C. / Debeer-Schmitt, L.; Eskildsen, M. R.; Ichioka, Masanori; Machida, K.; Jenkins, N.; Dewhurst, C. D.; Abrahamsen, A. B.; Bud'Ko, S. L.; Canfield, P. C.

In: Physical Review Letters, Vol. 99, No. 16, 167001, 16.10.2007.

Research output: Contribution to journalArticle

Debeer-Schmitt, L, Eskildsen, MR, Ichioka, M, Machida, K, Jenkins, N, Dewhurst, CD, Abrahamsen, AB, Bud'Ko, SL & Canfield, PC 2007, 'Pauli paramagnetic effects on vortices in superconducting TmNi2B2C', Physical Review Letters, vol. 99, no. 16, 167001. https://doi.org/10.1103/PhysRevLett.99.167001
Debeer-Schmitt L, Eskildsen MR, Ichioka M, Machida K, Jenkins N, Dewhurst CD et al. Pauli paramagnetic effects on vortices in superconducting TmNi2B2C. Physical Review Letters. 2007 Oct 16;99(16). 167001. https://doi.org/10.1103/PhysRevLett.99.167001
Debeer-Schmitt, L. ; Eskildsen, M. R. ; Ichioka, Masanori ; Machida, K. ; Jenkins, N. ; Dewhurst, C. D. ; Abrahamsen, A. B. ; Bud'Ko, S. L. ; Canfield, P. C. / Pauli paramagnetic effects on vortices in superconducting TmNi2B2C. In: Physical Review Letters. 2007 ; Vol. 99, No. 16.
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