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MegaOhm Extraordinary Hall effect in oxidized CoFeB

Strongly Correlated Electrons 2016-07-21 v1 Mesoscale and Nanoscale Physics
Authors: G. Kopnov , A. Gerber
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Abstract

We report on development of controllably oxidized CoFeB ferromagnetic films demonstrating the extraordinary Hall effect (EHE) resistivity exceeding 1 Ohmcm and magnetic field sensitivity up to 10^6 Ohm/T. Such EHE resistivity is four orders of magnitude higher than previously observed in ferromagnetic materials, while sensitivity is two orders larger than the best of semiconductors

Cite

@article{arxiv.1607.05923,
  title  = {MegaOhm Extraordinary Hall effect in oxidized CoFeB},
  author = {G. Kopnov and A. Gerber},
  journal= {arXiv preprint arXiv:1607.05923},
  year   = {2016}
}

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