[20p-131-1~8] 【CS.9】 Code-sharing Session of 10.1, 10.2, 10.3 & 10.4

[20p-131-5] Electric field effect on magnetic moment in Pt/Co structure

〇Aya Obinata¹, Tomohiro Koyama¹, Daichi Chiba¹ (1.The Univ. of Tokyo)

Keywords:Electric field effect on magnetism, Cobalt

To comprehend the physics of the electric field effect on magnetism in ferromagnetic metals, we have carefully investigated the electric field modulation of magnetic moment in perpendicularly-magnetized Pt/Co structure. The Pt/Co film deposited on a Si/SiO₂ substrate was fabricated into a capacitor structure. The perpendicular component of magnetic moment was measured using SQUID magnetometer under applying gate voltages. The result shows that the magnetic moment increased (decreased) when the positive (negative) gate voltage was applied. The modulation of magnetic moment was roughly estimated to be 1 \mu_B/electron.