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arXiv · 1810.13184

Millimeter-sized magnetic domains in perpendicularly magnetized ferrimagnetic Mn4N thin films grown on SrTiO3

Toshiki Gushi·Laurent Vila·Olivier Fruchart·Alain Marty·Stefania Pizzini·Jan Vogel·Fumiya Takata·Akihito Anzai·Kaoru Toko·Takashi Suemasu·Jean-Philippe Attané
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Abstract

The use of epitaxial layers for domain wall-based spintronic applications is often hampered by the presence of pinning sites. Here, we show that when depositing Mn4N(10 nm) epitaxial films, the replacement of MgO(001) by SrTiO3(001) substrates allows minimizing the misfit, and to obtain an improved crystalline quality, a sharper switching, a full remanence, a high anisotropy and remarkable millimeter-sized magnetic domains, with straight and smooth domain walls. In a context of rising interest for current-induced domain wall motion in rare

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Toshiki Gushi, Laurent Vila, Olivier Fruchart, Alain Marty, Stefania Pizzini, Jan Vogel, Fumiya Takata, Akihito Anzai, Kaoru Toko, Takashi Suemasu, Jean-Philippe Attané. 2018-10-31. Millimeter-sized magnetic domains in perpendicularly magnetized ferrimagnetic Mn4N thin films grown on SrTiO3. https://doi.org/10.7567/jjap.57.120310

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