Presentation Information
[7p-P03-28]Spin Hall effect in O-doped Pt layers prepared by sputtering
〇Yusei Ono1, Mitsuki Yoshino2, Taichi Hombo1, John Rex Mohan1, Yoichi Horibe1, Manabu Ishimaru1, Hironori Asada2, Yasuhiro Fukuma1 (1.Kyushu Inst. Tech., 2.Yamaguchi Univ.)
Keywords:
spin Hall effect,spin-orbit torque
A Pt thin film with added oxygen was fabricated to investigate how the spin Hall effect changes due to an oxygen concentration gradient. In the uniform single-layer film, the y-component of the spin Hall effect is dominant. However, in the PtOx (Gradient) structure composed of five layers of PtOx with varying oxygen concentrations (0, 5, 10, 15, and 20%; 2 nm × 5 layers = 10 nm), contributions from spin currents with spin polarization components in directions different from the y-axis were observed.