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Planar Hall effect and magnetic anisotropy in epitaxially strained chromium dioxide thin films

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2007

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Keizer, Ruurd S.
Schink, Sebastian W.
van Dijk, I.
Klapwijk, Teun M.
Miao, Guo-Xing
Xiao, Gang
Gupta, Arunava

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https://doi.org/10.1063/1.2715442
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Applied Physics Letters. American Institute of Physics (AIP). 2007, 90(14), 142509. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.2715442

Zusammenfassung

We have measured the in-plane anisotropic magnetoresistance of 100nm thick CrO2 thin films at liquid He temperatures. In low magnetic fields H, both the longitudinal and the transverse (planar Hall) resistance show abrupt switches, which characteristically depend on the orientation of H. All the experimental findings consistently demonstrate that the magnetic anisotropy in these CrO2 thin films is biaxial. We show that the biaxial magnetic anisotropy is due to epitaxial coherency strain, and that it naturally explains the complex magnetic switching behavior reported recently in CrO2 films with thicknesses of 50nm⩽d⩽250nm.

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ISO 690GOENNENWEIN, Sebastian T. B., Ruurd S. KEIZER, Sebastian W. SCHINK, I. VAN DIJK, Teun M. KLAPWIJK, Guo-Xing MIAO, Gang XIAO, Arunava GUPTA, 2007. Planar Hall effect and magnetic anisotropy in epitaxially strained chromium dioxide thin films. In: Applied Physics Letters. American Institute of Physics (AIP). 2007, 90(14), 142509. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.2715442
BibTex
@article{Goennenwein2007Plana-53201,
  year={2007},
  doi={10.1063/1.2715442},
  title={Planar Hall effect and magnetic anisotropy in epitaxially strained chromium dioxide thin films},
  number={14},
  volume={90},
  issn={0003-6951},
  journal={Applied Physics Letters},
  author={Goennenwein, Sebastian T. B. and Keizer, Ruurd S. and Schink, Sebastian W. and van Dijk, I. and Klapwijk, Teun M. and Miao, Guo-Xing and Xiao, Gang and Gupta, Arunava},
  note={Article Number: 142509}
}
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