Structural control and property exploration on organic complex stacks via combined microscopic observations

2013 Fiscal Year Final Research Report

• Project/Area Number: 23310062
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nanostructural science
• Research Institution: Hirosaki University (2013); Tohoku University (2011-2012)
• Principal Investigator: FUJIKAWA Yasunori 弘前大学, 理工学研究科, 教授 (70312642)
• Co-Investigator(Renkei-kenkyūsha): TERUI Toshifumi 独立行政法人情報通信研究機構, 未来ICT研究センター, 主任研究員 (50359098)
• Project Period (FY): 2011-11-18 – 2014-03-31
• Keywords: 走査トンネル顕微鏡 / 光電子顕微鏡 / 有機薄膜

Research Abstract

An organic growth system equipped with a photoelectron emission microscope has been combined with an existing ultrahigh-vacuum variable-temperature four-probe scanning tunneling microscope in order to investigate a complex organic stacks with their novel properties. Atomic scale size effect has been found in bismuth thin films, which is known as a good substrate for organic thin film growth. Thin film growth of picene, which is known to exhibit superconductivity by doping, has been tested and unusual island formation has been found.

Research Products

• [Journal Article] Spin-relaxation modulation and spin-pumping control by transverse spin-wave spin current in Y3Fe5O12 (2013)
  • Author(s): Y. Kajiwara, K. Uchida, D. Kikuchi, T. An, Y. Fujikawa and E. Saitoh
  • Journal Title: Appl. Phys. Lett. Volume: 103 Pages: 052404
  • Peer Reviewed
• [Journal Article] Spin mixing conductance at a well-controlled platinum/yttrium iron garnet interface (2013)
  • Author(s): Z. Qiu, K. Ando, K. Uchida, Y. Kajiwara, R. Takahashi, H. Nakayama, T. An, Y Fujikawa and E. Saitoh
  • Journal Title: Appl. Phys. Lett. Volume: 103 Pages: 092404
  • Peer Reviewed
• [Journal Article] Real-time microscopy of reorientation driven nucleation and growth in pentacene thin films on silicon dioxide (2013)
  • Author(s): A. Al-Mahboob, Y. Fujikawa, T. Sakurai, and J. T. Sadowski
  • Journal Title: Adv. Funct. Mater. Volume: 23 Pages: 2653-2660
  • Peer Reviewed
• [Journal Article] Geometry dependence on inverse spin Hall effect induced by spin pumping in Ni81Fe19/Pt films (2012)
  • Author(s): H. Nakayama, K. Ando, K. Harii, T. Yoshino, R. Takahashi, Y. Kajiwara, K. Uchida, Y. Fujikawa, and E. Saitoh
  • Journal Title: Phys. Rev. Volume: B85 Pages: 144408
  • Peer Reviewed
• [Journal Article] Interface induced inverse spin Hall effect in bismuth/permalloy bilayer (2012)
  • Author(s): Dazhi Hou, Z. Qiu, K. Harii, Y. Kajiwara, K. Uchida, Y. Fujikawa, H. Nakayama, T. Yoshino, T. An, K. Ando, Xiaofeng Jin, and E. Saitoh
  • Journal Title: Appl. Phys. Lett. Volume: 101 Pages: 042403
  • Peer Reviewed
• [Journal Article] Electroresistance Effect in Gold Thin Film Induced by Ionic-Liquid-Gated Electric Double Layer (2012)
  • Author(s): Hiroyasu Nakayama, Jianting Ye, Takashi Ohtani, Yasunori Fujikawa, Kazuya Ando, Yoshihiro Iwasa, and Eiji Saitoh
  • Journal Title: Appl. Phys. Express Volume: 5 Pages: 023002
  • Peer Reviewed
• [Journal Article] All-oxide system for spin pumping (2012)
  • Author(s): Z. Qiu, Y. Kajiwara, K. Ando, Y. Fujikawa, K. Uchida, T. Tashiro, K. Harii, T. Yoshino, and E. Saitoh
  • Journal Title: Appl. Phys. Lett. Volume: 100 Pages: 022402
  • Peer Reviewed
• [Journal Article] Spin pumping in a ferromagnetic/nonmagnetic/spin-sink trilayer film: spin current termination (2012)
  • Author(s): K. Harii, Z. Qiu, T. Iwashita, Y. Kajiwara, K. Uchida, K. Ando, T. An, Y. Fujikawa, and E. Saitoh
  • Journal Title: Key Engineering Materials Volume: 508 Pages: 266-270
  • Peer Reviewed
• [Journal Article] Inverse spin-Hall effect induced by spin pumping in metallic system (2011)
  • Author(s): K. Ando, S. Takahashi, J. Ieda, Y. Kajiwara, H. Nakayama, T. Yoshino, K. Harii, Y. Fujikawa, M. Matsuo, S. Maekawa, and E. Saitoh
  • Journal Title: J. Appl. Phys. Volume: 109 Pages: 103913
  • Peer Reviewed
• [Presentation] Layer-by-Layer Transport Analysis on Bi Thin Film Phase (2013)
  • Author(s): Y. Fujikawa, E. Saitoh
  • Organizer: 9th International Symposium on Atomic Level Characterizations for New Materials and Devices 2013
  • Place of Presentation: Kailua-Kona, HI, USA
  • Year and Date: 20131202-06
• [Presentation] Oscillation of conductivity in layer-by-layer growth of Bi thin film phase (2013)
  • Author(s): Y. Fujikawa, E. Saitoh
  • Organizer: American Physical Society March Meeting 2013
  • Place of Presentation: Baltimore, MD, USA
  • Year and Date: 20130318-22
• [Presentation] In-Situ Conductivity Measurement on Layer-by Layer Growth of Bi Thin Film Phase (2012)
  • Author(s): Y. Fujikawa, E. Saitoh
  • Organizer: 20th International Colloquium on Scanning Probe Microscopy
  • Place of Presentation: Naha, Japan
  • Year and Date: 20121217-19
• [Presentation] In-situ transport measurement of kinetically controlled Bi atomic layers (2012)
  • Author(s): Y. Fujikawa, E. Saitoh
  • Organizer: AVS 59th International Symposium & Exhibition
  • Place of Presentation: Tampa, FL, USA
  • Year and Date: 20121028-1102
• [Presentation] Mesoscopic Observations of Pentacene Growth on Silicon Oxide (2011)
  • Author(s): Y. Fujikawa, Y. Tsuruma, A. Al-Mahboob, T.Sakurai, K. Saiki
  • Organizer: 8th International Symposium on Atomic Level Characterizations for New Materials and Devices '11
  • Place of Presentation: Seoul, Korea
  • Year and Date: 20110522-24