Half-metallic nature of the low-temperature grown Co2MnSi films on SrTiO3

K. Kudo, S. Yamada, M. Yafuso, T. Kimura, V. K. Lazarov, K. Hamaya

Research output: Contribution to journalArticlepeer-review

Abstract

We experimentally show that half-metallic Co2MnSi films can be grown on SrTiO3(001) at around 350 °C by molecular beam epitaxy. Despite relatively low-temperature grown Co2MnSi films, L21-ordered structures, high saturation magnetic moments of ∼5.0 μB/f.u., and the negative sign of the anisotropic magnetoresistance (AMR) indicating half-metallic nature are obtained. For the 350°C-grown Co2MnSi films, a low Gilbert damping constant of ∼0.0035, implying the high spin polarization, is evaluated. This study will open a way for developing novel spintronic applications consisting of Co2MnSi and perovskite oxides such as high-performance interfacial multiferroic systems and efficient spin-to-charge conversion systems.

Original languageEnglish
Article number155571
JournalJournal of Alloys and Compounds
Volume854
DOIs
Publication statusPublished - Feb 15 2021

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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