Spin susceptibility of the topological superconductor UPt3 from polarized neutron diffraction

W. J. Gannon*, W. P. Halperin, M. R. Eskildsen, Pengcheng Dai, U. B. Hansen, K. Lefmann, A. Stunault

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Experiment and theory indicate that UPt3 is a topological superconductor in an odd-parity state, based in part from the temperature independence of the NMR Knight shift. However, quasiparticle spin-flip scattering near a surface, where the Knight shift is measured, might be responsible. We use polarized neutron scattering to measure the bulk susceptibility with H¥c, finding consistency with the Knight shift but inconsistency with theory for this field orientation. We infer that neither spin susceptibility nor a Knight shift are a reliable indication of odd parity.

Original languageEnglish (US)
Article number041111
JournalPhysical Review B
Volume96
Issue number4
DOIs
StatePublished - Jul 10 2017

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Spin susceptibility of the topological superconductor UPt3 from polarized neutron diffraction'. Together they form a unique fingerprint.

Cite this