Nano-scale Spin State in Invar Alloy Fe-36at\%Ni

ORAL

Abstract

We use high-resolution ferromagnetic resonance force microscopy (FMRFM) to image the nano-scale spin structure of an Invar alloy (Fe-36at\%Ni) to test the well-known two-spin-state hypothesis proposed by Weiss. Weiss proposed that the two-spin- state model could explain the Invar effect; but to our knowledge this has have not been experimentally confirmed. With nano-scale spatial resolution of FMRFM, we intend to experimentally examine the existence or absence of such states in the Fe-36at\%Ni Invar alloy.

Authors

  • Peng Zhao

    • Department of Physics, Ohio State University

  • P. Chris Hammel

    • The Ohio State University, Department of Physics
    • The Ohio State University
    • Ohio State University
    • Ohio State University department of Physics
    • Department of Physics, Ohio State University

  • Ji-Cheng Zhao

    • Department of Material Science and Engineering, Ohio State University