Electronic Transport Study of Connected Artificial Kagome Spin Ice

ORAL

Abstract

We present experimental and computational results of magnetotransport in connected ferromagnetic nanowire arrays (connected artificial spin ice). We probed the artificial kagome spin ice lattice using AC transport techniques as a function of applied magnetic field strength and angle and compared these results to calculated transport properties based on OOMMF computational modeling. We find that many of the transport properties observed experimentally can be described in a simple manner using the Anistropic Magnetoresistance (AMR) model for individual nanowires and then calculating the net resistance using classical circuit analogues. Supported by the US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division under grant number DE-SC0005313.

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Authors

  • D.W. Rench

    Pennsylvania State University

  • B.L. Le

    University of Illinois at Urbana-Champaign

  • Paul Lammert

    Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA, Pennsylvania State University, Phys. Dept., Penn State University

  • R. Misra

    Pennsylvania State University

  • Vincent Crespi

    Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA, Pennsylvania State University, The Pennsylvania State University, Phys. Dept., Penn State University

  • Nitin Samarth

    Physics Department, Pennsylvania State University, Dept. of Physics, Penn State University, Pennsylvania State University, Department of Physics and Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA

  • P. Schiffer

    Department of Physics and the Federick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA, University of Illinois at Urbana-Champaign