Electron spin detection by electron spin resonance with scanning tunneling microscope

2013 Fiscal Year Final Research Report

• Project/Area Number: 23540425
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Tokyo University of Science
• Principal Investigator: SAKATA HIDEAKI 東京理科大学, 理学部, 教授 (30215636)
• Project Period (FY): 2011 – 2013
• Keywords: 走査トンネル顕微鏡 / スピン

Research Abstract

The object of this study was to observe a single spin by scanning tunneling microscope (STM) in some materials. The precession motion of a spin under a weak magnetic field modulates the tunneling current with the precession frequency. This phenomenon was used to detect spin by STM. We made STM with the low noise filter, impedance converter and preamp. The distance among the STM tip, the sample and the measuring circuit was minimized to reduce the attenuation of the high frequency signal. We observed high frequency signal due to an unpaired electron in BDPA. High frequency signal due to the localized state in graphite edge was not detected.

Research Products

• [Journal Article] Scanning Tunneling Spectroscopy Study of Impurity Resonance Energy in Bi2Sr2CaCu2O8+δ (2014)
  • Author(s): H. Nakamura, T. Machida, T. Kato, M. Fujimoto, M. Iguchi, T. Yamasaki, A. Kaneko, S. Ooi, T. Mochiku, K. Hirata, T. Hasegawa, H. Sakata
  • Journal Title: J. Phys. Soc. Jpn Volume: 83 Pages: 24702
  • Peer Reviewed
• [Journal Article] Distribution of the Impurity Energy in Bi2Sr2CaCu2O8+δ Observed by Scanning Tunneling Spectroscopy (2013)
  • Author(s): H. Nakamura, T. Machida, T. Kato, M. Fujimoto, M. Iguchi, T. Yamasaki, A. Kaneko, S. Ooi, T. Mochiku, K. Hirata, T. Hasegawa, H. Sakata
  • Journal Title: J. Superconductivity and Novel Magnetism Volume: 26 Pages: 2633
  • Peer Reviewed
• [Journal Article] Quantum interference of impurity bound sates in Bi2Sr2Ca(Cu1-xZnx) 2O8+δ probed by scanning tunneling spectroscopy (2011)
  • Author(s): T. Machida, T. Kato, H. Nakamura, M. Fujimoto, T. Mochiku, S. Ooi, A. Thakur, H. Sakata and K. Hirata
  • Journal Title: Phys. Rev. B Volume: 84 Pages: 64501
  • Peer Reviewed
• [Journal Article] Effect of Zn, Ni, and Fe Impurities on Bi2Sr1. 6La0. 4CuO6+δ (2011)
  • Author(s): H. Nakamura, H. Funahashi, M. Fujimori, M. Iguchi, Y. Yamasaki, H. Sakata
  • Journal Title: J. Superconductivity and Novel Magnetism Volume: 24 Pages: 271
  • Peer Reviewed
• [Journal Article] Impurity-Related Local Density-of-States Modulation in Bi2Sr2Ca(Cu1-xZnx) O8+δ Probed by Scanning Tunneling Spectroscopy (2011)
  • Author(s): T. Machida, T. Kato, H. Nakamura, M. Fujimoto, T. Mochiku, S. Ooi, H. Sakata and K. Hirata
  • Journal Title: J. Superconductivity and Novel Magnetism Volume: 24 Pages: 481
  • Peer Reviewed
• [Presentation] 走査トンネル顕微鏡/分光法によるBi2212の不純物状態の観察 (2013)
  • Author(s): 中村浩志, 井口正晴, 山崎隆博, 金子晃太, 町田理, 茂筑高士, 平田和人, 長谷川哲也, 坂田英明
  • Organizer: 日本物理学会
  • Place of Presentation: 徳島大学
  • Year and Date: 2013-09-26