A study related to development of logic devices operated by carrier-driven spin currents

2016 Fiscal Year Final Research Report

• Project/Area Number: 26286039
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Applied materials
• Research Institution: Osaka City University
• Principal Investigator: SHIKOH Eiji 大阪市立大学, 大学院工学研究科, 准教授 (90377440)
• Co-Investigator(Kenkyū-buntansha): 神吉 輝夫 大阪大学, 産業科学研究所, 准教授 (40448014)
• Research Collaborator: SHIMOGIKU Hideki ; SHIRAI Shun ; KURIYAMA Hiroki ; TANI Yasuo ; OKADA Takahisa ; KANAGAWA Kazunari ; KONDO Takuya ; TEKI Yoshio ; TSUJIMOTO Hiroaki
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: スピントロニクス / スピンポンピング / ｐ型シリコン / 遷移金属酸化物 / ペンタセン

Outline of Final Research Achievements

As a new application using spintronics, a research related to development of logic devices operated by carrier-driven spin currents was implemented. Spin currents in pentacene thin films, in p-type silicon and in vanadium oxide were tried to control densities of carriers with light irradiation, applying electrical field and controlling temperature, respectively.
Spin transport in a thermally evaporated pentacene film and in a degenerated p-type silicon were achieved at room temperature. Spin diffusion length and spin current relaxation time in thermally evaporated pentacene films at room temperature were estimated to be about 42 nm and about 150 ns, respectively.

Free Research Field

工学