Ultrasonic attenuation measurements of the flux lattice phase transition in the heavy fermion superconductor UPt3

S. Adenwalla*, Z. Zhao, J. B. Ketterson, D. G. Hinks, A. Schenstrom, Y. Hong, M. F. Xu, M. Levy, Bimal K. Sarma

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

Attenuation measurements of longitudinal ultrasound in superconducting UPt3 show a peak, below Hc2, that depends strongly on the orientation of the field relative to the c-axis. This peak is seen only with longitudinal and not with transverse sound. It is shown that, as the field is tipped away from the c axis into the basal plane, HFL decreases from 1.3 T to 0.58 T (at the lowest temperature). The temperature dependence of HFL for all orientations of the field is the same--a flat region, followed by a slow decrease in HFL with increasing temperature.

Original languageEnglish (US)
Pages (from-to)1085-1088
Number of pages4
JournalUltrasonics Symposium Proceedings
Volume2
StatePublished - 1988
EventIEEE 1988 Ultrasonics Symposium - Proceedings - Chicago, IL, USA
Duration: Oct 2 1988Oct 5 1988

ASJC Scopus subject areas

  • Engineering(all)

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