[8p-A21-1~18] 6.4 Thin films and New materials

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8p-A21-9] Substrate-dependent epitaxy of ultrathin continuous <001>-oriented Pt films on MgO and SrTiO₃ substrates

〇Soushi Akita¹, Yuki Sobukawa¹, Kaoru Toko¹, Takashi Suemasu¹ (1.Tsukuba Univ.)

Keywords:

epitaxial growth,ultrathin films,spintronics

Pt has attracted considerable attention as a promising spin-current source in the field of spintronics. In this study, we investigated the formation of <001>-oriented Pt ultrathin films with thicknesses of 5 nm or less by employing a three-step growth process on MgO(001) substrates and introducing underlayers on SrTiO₃(001) substrates. The substrate-dependent epitaxial growth and surface flatness were evaluated by reflection high-energy electron diffraction, X-ray diffraction, pole figure measurements, and atomic force microscopy.