TY - JOUR
T1 - Half-metallic nature of the low-temperature grown Co2MnSi films on SrTiO3
AU - Kudo, K.
AU - Yamada, S.
AU - Yafuso, M.
AU - Kimura, T.
AU - Lazarov, V. K.
AU - Hamaya, K.
PY - 2021/2/15
Y1 - 2021/2/15
N2 - 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.
AB - 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.
KW - Heusler alloy
KW - Low temperature growth
KW - Moleclar beam epitaxy
KW - Perovskite oxide materials
UR - http://www.scopus.com/inward/record.url?scp=85091658940&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2020.155571
DO - 10.1016/j.jallcom.2020.155571
M3 - Article
AN - SCOPUS:85091658940
SN - 0925-8388
VL - 854
JO - JOURNAL OF ALLOYS AND COMPOUNDS
JF - JOURNAL OF ALLOYS AND COMPOUNDS
M1 - 155571
ER -