Abstract
The structural, magnetic and magneto-transport properties of highly c-axis oriented [formula omitted] ([formula omitted], 1.5, 3, and 4.5) thin films have been investigated. The coercivity of the Pt-alloyed thin films increases and the saturation magnetization decreases as the Pt concentration increases. The anisotropy field [formula omitted] increases as a function of Pt concentration, too but the coercivity increases more rapidly than the anisotropy field. This indicates an enhanced domain-wall pinning, caused by increased interstitial disorder due to the occupancy of regular Mn sites by Pt. The same mechanism explains the reduced magnetization. All samples exhibit a large extraordinary Hall effect with anomalous Hall coefficient about an order of magnitude larger than the ordinary Hall coefficient.
Original language | English (US) |
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Pages (from-to) | 66 |
Number of pages | 1 |
Journal | Journal of Applied Physics |
Volume | 107 |
Issue number | 9 |
DOIs | |
State | Published - May 1 2010 |
ASJC Scopus subject areas
- General Physics and Astronomy