Giant magnetic moment in Mn11Si19 microparticles at room temperature

POSTER

Abstract

Following our previous paper reporting enhancement of magnetic moment in powder Mn11Si19 ($\sim$30 microns in diameter), we report here on magnetic moment for smaller particles ($\sim$5 microns in diameter) at 5 K to 300 K. Apart from the larger particles case, magnetisation curves against field exhibit distinctive features of soft magnetic materials over the whole range of temperatures. We observed a sort of superparamagnetism in non-nanoparticles.

Authors

  • Kiyotaka Hammura

    • Hitachi Cambridge Laboratory, University of Cambridge

  • Haruhiko Udono

    • Ibaraki University

  • Tomosuke Aono

    • Ibaraki University