Electrical transport measurements on honeycomb artificial spin ice.

ORAL

Abstract

Artificial spin ice is a macroscopic playground for magnetically frustrated systems. We have previously shown that in a cobalt honeycomb artificial spin ice composed of 1 micron long nanowires there are unusual features in the magnetotransport below 50K. Here we explore the low temperature transport of equivalent artificial spin ice structures fabricated from permalloy. We discuss the extent to which the phenomenon is generic to the honeycomb artificial spin ice geometry and the effect of changing the constituent material on the onset temperature and the magnitude of the magnetotransport effect.

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Authors

  • Katharina Zeissler

    Imperial College London, Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2AZ, UK; London Centre for Nanotechnology, London WC1H 0AH, UK, Imperial College London, UK; London Center for Nanotechnology, UK

  • Megha Chadha

    Imperial College London, Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2AZ, UK; London Centre for Nanotechnology, London WC1H 0AH, UK, Imperial College London, UK; London Center for Nanotechnology, UK

  • Lesley Cohen

    Imperial College London, Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2AZ, UK; London Centre for Nanotechnology, London WC1H 0AH, UK, Imperial College London, UK; London Center for Nanotechnology, UK

  • Will R. Branford

    Imperial College London, Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2AZ, UK; London Centre for Nanotechnology, London WC1H 0AH, UK, Department of Physics, Blackett Laboratory, Imperial College London, London SW72AZ, UK and London Centre for Nanotechnology, Imperial College London, UK; London Center for Nanotechnology, UK