کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5457475 | 1515819 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tailoring magnetization and anisotropy of tetragonal Mn3Ga thin films by strain-induced growth and spin orbit coupling
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
Tetragonal Mn3Ga thin films were epitaxially grown with and without strain on Cr and Mo crystalline buffer layers, respectively, using rf-magnetron sputtering. Epilayers grown on Cr with a lattice mismatch of 4.16%, exhibit a high magnetization of 220Â kAmâ1 and high perpendicular magnetic anisotropy. These characteristics are attributed to interfacial strain. Additionally, a soft ferromagnetic component is observed in these films but not in relaxed layers grown on Mo, where Îa/a is â0.1%. These latest films exhibit a low magnetization of 80Â kAmâ1 and both perpendicular and in-plane magnetic anisotropies. We propose that high spin orbit coupling of Mo-5s14d5 orbitals from the buffer layer and strong hybridization with Mn3+-3d4 orbitals from the magnetic layer are at the origin of in-plane anisotropy at the interface, while Mn3Ga magnetocrystalline anisotropy leads to perpendicular anisotropy on the rest of the film.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 92, January 2018, Pages 20-24
Journal: Intermetallics - Volume 92, January 2018, Pages 20-24
نویسندگان
RocÃo M. Gutiérrez-Pérez, Ricardo López Antón, Karol ZaÅÄski, José T. HolguÃn-Momaca, Francisco Espinosa-Magaña, Sion F. Olive-Méndez,