In-Depth Structural and Magnetic Characterizations of Fe and CrN Bilayer System
ORAL
Abstract
Iron and chromium nitride bilayer is an ideal system for exchange biasing and sensing applications as the Neel temperature of CrN is 280 K and Curie temperature of Fe 1043 K. For better growth and tunability of the bilayer, it is crucial to understand its crystal and magnetic structures in detail. In this project, we grow high quality epitaxial Fe/CrN bilayer thin films on MgO(001) by molecular beam epitaxy. All bilayers grow in 001 orientation on MgO(001) substrate with uniform layer thicknesses and sharp interfaces. Our data reveals the epitaxial relationship between Fe and CrN crystals and the magnetic structures of Fe and CrN. We found anisotropies of Fe and CrN are parallel to [110]MgO. We present a model that combines the crystal and magnetic structures of the Fe/CrN bilayer and fully explains all results.
*Research supported by the King Fahd University of Petroleum and Minerals under Award No. SR191024 and and by the U.S. Dept. of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under award No. DE-FG02-06ER46317.
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Presenters
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Khan Alam
- Nanoscale and Quantum Phenomena Institute, Department of Physics and Astronomy, Ohio University
- Physics Department, King Fahd University of Petroleum and Minerals
- Department of Physics, King Fahd University of Petroleum and Minerals