Quantum oscillations in RAgSb$_2$ (R = La, Sm, Y) as seen via magnetostriction measurements

ORAL

Abstract

We present low temperature longitudinal magnetostriction measurements taken using a capacitance dilatometer in a PPMS-14 instrument for several RAgSb$_2$ (R = rare earth) compounds. The quantum oscillations in magnetostriction were observed up to temperatures as high as 25 K. These data are compared with the results of de Haas - van Alphen and Shubnikov - de Haas measurements. Using these data the uniaxial stress dependencies of the extremal Fermi surface orbits can be evaluated.

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Authors

  • S.L. Bud'ko

  • S.A. Law

  • P.C. Canfield

    • Ames Laboratory and Dept. of Physics and Astronomy, Iowa State University

  • G.M. Schmiedeshoff

    • Dept. of Physics, Occidental College, Los Angeles