Magnetic Characterization of a Mn Based Ferromagnet on SixGe(1-x-y)Sny with High Sn Content

Autor:	Joris van Slageren, Michael Oehme, H. S. Funk, David Weisshaupt, Michal Kern, Inga A. Fischer, Jörg Schulze, Christoph Sürgers
Rok vydání:	2019
Předmět:	Materials science Semiconductor Ferromagnetism Condensed matter physics Spintronics business.industry Lattice (order) Curie temperature Coercivity Epitaxy business
Zdroj:	ECS Transactions. 93:101-104
ISSN:	1938-5862 1938-6737
Popis:	We report on the first synthesis of a Mn based ferromagnet on SixGe(1-x-y)Sny lattice matched on Ge with Sn content up to 15 %. The ferromagnetic layers were grown using interdiffusion of evaporated Mn and epitaxially grown SixGe(1-x-y)Sny. The Si to Sn ratio of the epitaxial layer is fixed to allow lattice matched growth on Ge. The possibility to grow the ferromagnetic layer directly on a semiconductor opens up the opportunity for large scale manufacturing using a selfaligned interdiffusion process. The compound exhibits a ferromagnetic phase for all samples studied. The observed Curie temperature remains around room temperature and shows no decisive trend with increasing Sn content. The samples show an increasing coercive field and decreasing saturation magnetization with increasing Sn content. This makes Mn-SixGe(1-x-y)Sny an interesting alternative to Mn5Ge3 as a ferromagnetically harder material for spintronics applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2804ab9b546c482e7f8f275dc0f94047 https://doi.org/10.1149/09301.0101ecst Zobrazit plný text záznamu