Communication

NiFe2O4: A Versatile Spinel Material Brings New Opportunities for Spintronics†

  1. U. Lüders2,3,
  2. A. Barthélémy1,
  3. M. Bibes4,
  4. K. Bouzehouane1,
  5. S. Fusil5,
  6. E. Jacquet1,
  7. J.-P. Contour1,
  8. J.-F. Bobo2,
  9. J. Fontcuberta3,
  10. A. Fert1

Article first published online: 8 JUN 2006

DOI: 10.1002/adma.200500972

Issue

Advanced Materials

Advanced Materials

Volume 18, Issue 13, pages 1733–1736, July, 2006

Additional Information

How to Cite

Lüders, U., Barthélémy, A., Bibes, M., Bouzehouane, K., Fusil, S., Jacquet, E., Contour, J.-P., Bobo, J.-F., Fontcuberta, J. and Fert, A. (2006), NiFe2O4: A Versatile Spinel Material Brings New Opportunities for Spintronics. Adv. Mater., 18: 1733–1736. doi: 10.1002/adma.200500972

Author Information

  1. 1

    Unité Mixte de Physique CNRS/Thales, Route départementale 128, 91767 Palaiseau, France

  2. 2

    Lab. de Nanomagnétisme pour L'Hyperfréquence CNRS-ONERA, BP4025, 2 avenue Edouard Belin, 31055 Toulouse, France

  3. 3

    Institut de Ciència de Materials de Barcelona, CSIC, Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalunya, Spain

  4. 4

    Institut d'Electronique Fondamentale, Université Paris-Sud, 91405 Orsay, France

  5. 5

    Université d'Evry, Bât. des Sciences, rue du père Jarlan, 91025 Evry, France

  1. †

    We acknowledge financial support by the Franco-Spanish PICASSO PAI program, the E.U. FP6 STREP “Nanotemplates”, Contract No. NMPA4-2004-505955 and the CICyT of the Spanish government (project MAT2002-04551-cO3, MAT2005-05656, and NAN2004-9094).

Publication History

  1. Issue published online: 27 JUN 2006
  2. Article first published online: 8 JUN 2006
  3. Manuscript Accepted: 23 NOV 2005
  4. Manuscript Received: 11 MAY 2005

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Keywords:

  • Spinels;
  • Spintronics;
  • Superconductivity;
  • Thin films
Thumbnail image of graphical abstract

Ultrathin layers of the versatile spinel oxide NiFe2O4 can be conductive or insulating depending on the growth conditions. Conductive NiFe2O4 (NFO) electrodes are inserted into conventional magnetic tunnel junctions containing La2/3Sr1/3MnO3/SrTiO3 (LMSO/STO) bilayers, and insulating and ferrimagnetic NiFe2O4 layers are used as barriers to define a spin filter (see figure). The ability of such heterostructures to highly spin-polarize electrons injected from a non-magnetic electrode is demonstrated.

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