Magnetism in nanometer-thick magnetite

Matteo Monti; Benito Santos; Arantzazu Mascaraque; Oscar Rodríguez de la Fuente; Miguel Angel Niño; Tevik Onur Menteş; Andrea Locatelli; Kevin F. McCarty; Jose F. Marco; Juan de la Figuera

doi:10.1103/PhysRevB.85.020404

Magnetism in nanometer-thick magnetite

Mesoscale and Nanoscale Physics 2012-01-13 v1 Materials Science

Authors: Matteo Monti , Benito Santos , Arantzazu Mascaraque , Oscar Rodríguez de la Fuente , Miguel Angel Niño , Tevik Onur Menteş , Andrea Locatelli , Kevin F. McCarty , Jose F. Marco , Juan de la Figuera

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Abstract

The oldest known magnetic material, magnetite, is of current interest for use in spintronics as a thin film. An open question is how thin can magnetite films be and still retain the robust ferrimagnetism required for many applications. We have grown one-nanometer-thick magnetite crystals and characterized them in situ by electron and photoelectron microscopies including selected-area x-ray circular dichroism. Well-defined magnetic patterns are observed in individual nano-crystals up to at least 520 K, establishing the retention of ferrimagnetism in magnetite two-unit-cells thick.

Keywords

thin film magnetism magnetic nanoparticles

Cite

@article{arxiv.1110.4568,
  title  = {Magnetism in nanometer-thick magnetite},
  author = {Matteo Monti and Benito Santos and Arantzazu Mascaraque and Oscar Rodríguez de la Fuente and Miguel Angel Niño and Tevik Onur Menteş and Andrea Locatelli and Kevin F. McCarty and Jose F. Marco and Juan de la Figuera},
  journal= {arXiv preprint arXiv:1110.4568},
  year   = {2012}
}

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5 pages, 4 figures

Magnetism in nanometer-thick magnetite

Abstract

Keywords

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