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Low depinning fields in Ta-CoFeB-MgO ultrathin films with perpendicular magnetic anisotropy (Articolo in rivista)
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- Low depinning fields in Ta-CoFeB-MgO ultrathin films with perpendicular magnetic anisotropy (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Alternative label
C. Burrowes1,2, N. Vernier1,2, J.-P. Adam1,2, L. Herrera Diez1,2, K. Garcia1,2, I. Barisic1,2, G. Agnus1,2, S. Eimer1,2, Joo-Von Kim1,2, T. Devolder1,2, A. Lamperti3, R. Mantovan3, B. Ockert4, E. E Fullerton5 and D. Ravelosona1,2 (2013)
Low depinning fields in Ta-CoFeB-MgO ultrathin films with perpendicular magnetic anisotropy
in Applied physics letters; AIP Publishing LLC, Melville, NY 11747 (Stati Uniti d'America)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- C. Burrowes1,2, N. Vernier1,2, J.-P. Adam1,2, L. Herrera Diez1,2, K. Garcia1,2, I. Barisic1,2, G. Agnus1,2, S. Eimer1,2, Joo-Von Kim1,2, T. Devolder1,2, A. Lamperti3, R. Mantovan3, B. Ockert4, E. E Fullerton5 and D. Ravelosona1,2 (literal)
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- http://scitation.aip.org/content/aip/journal/apl/103/18/10.1063/1.4826439 (literal)
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- 1 Institut d'Electronique Fondamentale, Université Paris-Sud, 91405 Orsay, France
2 UMR CNRS 8622, 91405 Orsay, France
3 Laboratorio MDM, IMM-CNR, Via C. Olivetti 2, 20864 Agrate Brianza (MB), Italy
4 Singulus Technology AG, Hanauer Landstrasse 103, 63796 Kahl am Main, Germany
5 Center for Magnetic Recording Research, University of California San Diego, San Diego, 92093-0401 California, USA (literal)
- Titolo
- Low depinning fields in Ta-CoFeB-MgO ultrathin films with perpendicular magnetic anisotropy (literal)
- Abstract
- We have studied the domain-wall dynamics in Ta-CoFeB-MgO ultra-thin films with perpendicular magnetic anisotropy for various Co and Fe concentrations in both the amorphous and crystalline states. We observe three motion regimes with increasing magnetic field, which are consistent with a low fields creep, transitory depinning, and high fields Walker wall motion. The depinning fields are found to be as low as 2 mT, which is significantly lower than the values typically observed in 3d ferromagnetic metal films with perpendicular magnetic anisotropy. This work highlights a path toward advanced spintronics devices based on weak random pinning in perpendicular CoFeB films. (literal)
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