[19p-Z14-1~18] 6.3 酸化物エレクトロニクス

▼ [19p-Z14-5] Room Temperature Ferromagnetic Behaviors in Fe_2-xTi_1+xO₅ Solid Solution Thin Films Fabricated by a Pulsed Laser Deposition

〇(M1)Haining Li¹、Masahiro Sakuda¹、Hiroyasu Yamahara¹、Munetoshi Seki¹、Hitoshi Tabata¹ (1.Univ. of Tokyo)

キーワード：Spintronics, Metal oxide thin films, Room-temperature ferromagnetism

In this work, we offered an opening report on the successful fabrication of a series of orthorhombic Fe₂TiO₅-FeTi₂O₅ solid solution thin films grown on SrTiO₃ (100) substrates by pulsed laser deposition. Then, we gave the first experimental confirmation on strong ferromagnetic behaviors at room temperature (300K) in both Fe_2-xTi_1+xO₅ (x = 0.5 and 0.7) samples. With the fact that ferromagnetism can still be exhibited at 400K in Fe_1.5Ti_1.5O₅ films, our research might lay a solid foundation as a new available material candidate for future cost-effective spintronics devices.