Velocity dispersion at the metamagnetic transition in UPt3

J. R. Feller, D. Dasgupta, H. Zhang, D. G. Hinks, J. B. Ketterson, Bimal K. Sarma*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The longitudinal ultrasonic attenuation and velocity were measured on a single crystal of UPt3 in magnetic fields up to 27 T. Earlier measurements had reported metamagnetic behavior in the vicinity of 20 T, where a pronounced velocity dip (softening of the lattice) is seen. Simultaneous measurements at three frequencies during the same run were possible. A small dispersion in the velocity is seen at the metamagnetic transition.

Original languageEnglish (US)
Pages (from-to)656-657
Number of pages2
JournalPhysica B: Condensed Matter
Volume259-261
DOIs
StatePublished - 1999

Funding

We thank the staff at NHMFL Tallahassee, especially Scott Hannahs, Bobby Pullum, and Mark Whitton for their help during the experiment. This work was supported by the National Science Foundation (NSF Grant DMR-9704020 and DMR-9623682) and NHMFL (NSF grant DMR-9527035).

Keywords

  • High magnetic fields
  • Metamagnetism
  • UPt
  • Velocity dispersion

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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