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Author Kusinski, G. J. ♦ Krishnan, K. M. ♦ Denbeaux, G. ♦ Thomas, G. ♦ Terris, B. D. ♦ Weller, D.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ♦ ANISOTROPY ♦ ELECTRONS ♦ IRRADIATION ♦ MAGNETIZATION ♦ MICROSCOPY ♦ NUCLEATION ♦ PHOTONS ♦ PROBES ♦ TRANSMISSION ELECTRON MICROSCOPY
Abstract The three-dimensional magnetic structure and reversal mechanism of patterned Co/Pt multilayers, were imaged using complementary Lorentz transmission electron microscopy (in-plane component) and magnetic transmission x-ray microscopy (perpendicular magnetization). The Co/Pt films with perpendicular anisotropy were patterned by ion irradiation through a stencil mask to produce in-plane magnetization in the irradiated regions. The boundaries of the patterns, defined by the transition from out-of-plane to in-plane magnetization, were found to be determined by the stencil mask. The nucleation fields were substantially reduced to 50 Oe for the in-plane regions and 1 kOe for the perpendicular regions, comparing to 4.5 kOe for the as-grown film. The perpendicular reversals were found to always originate at the pattern boundaries.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-10-01
Publisher Department Lawrence Berkeley National Laboratory
Publisher Place United States
Journal Applied Physics Letters
Volume Number 79
Issue Number 14
Technical Publication No. LBNL-46717
Organization Lawrence Berkeley National Laboratory


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