Exploring of magnetic properties of magnetic molecules at interface

2011 Fiscal Year Final Research Report

• Project/Area Number: 21241027
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nanomaterials/Nanobioscience
• Research Institution: The University of Tokyo
• Principal Investigator: TAKAGI Noriaki 東京大学, 大学院・新領域創成科学研究科, 准教授 (50252416)
• Co-Investigator(Kenkyū-buntansha): SHIRAKI Susumu 東北大学, 原子分子材料科学高等研究機構, 講師 (80342799)
• Project Period (FY): 2009 – 2011
• Keywords: 走査トンネル顕微鏡 / 非弾性トンエル分光 / スピン / 吸着 / 磁気異方性 / 表面・界面 / 鉄フタロシアニン

Research Abstract

The relationship of magnetic properties(spin state, magnetic anisotropy, ordering) of iron phthalocyanine with metal surfaces was investigated by single molecule spectroscopy with a scanning tunneling microscope. The spin excitaion spectum and Zeeman splitting caused by external magnetic fields were successfully measured for individual molecules. Depending on the coupling strength at the molecule-substrate interface, the spin state is changed from S=1 to S=0. On oxidized Cu surface, the adsorption-induced switching of magnetic anisortropy takes place. The novel SU(4) Kondo effect is observed on Au(111), which provides an intriguing example that the symmetry of local site plays a vital role in the strongly-correlated many-body phenomena such as Kondo effect. Two-dimensional molecular Kondo lattice was realized for the first time where the Kondo effect at individual molecules competes with the antiferromagnetic spin-spin couplings mediated by the substrate electrons.

Research Products

• [Journal Article] Density functional theory calculation for magnetism of Fe-phthalocyanine molecules on Au(111) (2012)
  • Author(s): E. Minamitani, D. Matsunaka, N. Tsukahara, N. Takagi, M. Kawai, Y. Kim
  • Journal Title: e-Journal Surf. Sci. Nanotech Volume: 10 Pages: 38-44
  • Peer Reviewed
• [Journal Article] Structure of Silicene grown on Ag(111) (2012)
  • Author(s): C-L. Lin, R. Arafune, K. Kawahara, N. Tsukahara, E. MinamitaniY. Kim, N. Takagi, M. Kawai
  • Journal Title: Appl. Phys. Express Volume: 5 Pages: 3
  • Peer Reviewed
• [Journal Article] Evolution of Kondo resonance from a single impurity molecule to the two-dimensional lattice (2011)
  • Author(s): N. Tsukahara, S. Shiraki, S. Itou, N. Ohta, N. Takagi, M. Kawai
  • Journal Title: Phys. Rev. Lett Volume: 106 Pages: 4
  • Peer Reviewed
• [Journal Article] 表面に吸着した鉄(II)フタロシアニンの磁性ースピン、磁気異方性、近藤効果- (2011)
  • Author(s): 高木紀明、塚原規志、川合眞紀
  • Journal Title: 表面科学 Volume: 32 Pages: 629-634
  • Peer Reviewed
• [Journal Article] Cu(110)表面上の単一鉄(II)フタロシアニン分子のスピン励起 (2009)
  • Author(s): 塚原規志、能登健一、小原通明、白木將、高木紀明、川合眞紀
  • Journal Title: 表面科学 Volume: 30 Pages: 433-438
  • Peer Reviewed
• [Journal Article] Adsorption-induced switching of magnetic anisotropy in a single iron(II) phthalocyanine molecule on oxidized Cu(110) surface (2009)
  • Author(s): N. Tsukahara, K. Noto, M. Ohara, S. Shiraki, Y. Takata, J. Miyawakai, M. Taguchi, A. Chainani, S. Shin, N. Takagi, M. Kawai
  • Journal Title: Phys. Rev. Lett Volume: 102 Pages: 4
  • Peer Reviewed
• [Presentation] Evolution of Kondo Resonance from a Single Impurity Molecule to the Two-Dimensional Kondo Lattice (2012)
  • Author(s): N. Takagi
  • Organizer: American Physics Society march Meeting
  • Place of Presentation: Boston, USA
  • Year and Date: 20120227-0302
• [Presentation] Kondo lattice of magnetic molecule at surface (2011)
  • Author(s): N. Takagi
  • Organizer: Kondo lattice of magnetic molecule at surface
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20111211-15
• [Presentation] Ag(110)基板上に形成した鉄フタロシアニン二分子膜のスピン状態 (2011)
  • Author(s): 福嶋徹、酒井真利、能登健一、塚原規志、白木将、中村哲也、木下豊彦、高木紀明、川合眞紀
  • Organizer: 日本物理学会
  • Place of Presentation: 富山
  • Year and Date: 20110921-24
• [Presentation] Au(111)表面における鉄フタロシアニンの近藤共鳴状態: NO分子によるスイッチング (2011)
  • Author(s): 寺内悠、伊藤彩夏、塚原規志、高木紀明、川合眞紀
  • Organizer: 日本物理学会
  • Place of Presentation: 富山
  • Year and Date: 20110921-24
• [Presentation] Molecular magnetism at surfaces explored by single molecule spectroscopy (2011)
  • Author(s): N. Takagi
  • Organizer: 28th European Conference on Surface Science
  • Place of Presentation: Wroclaw, Poland
  • Year and Date: 20110828-0902
• [Presentation] Large conductance change by inelastic electron tunneling through iron(II) phthalocyanine molecules adsorbed on Ag(111) (2011)
  • Author(s): N. Ohta, N. Tsukahara, R. Arafune, N. Takagi, M. Kawai
  • Organizer: 28th European Conference on Surface Science
  • Place of Presentation: Wroclaw, Poland
  • Year and Date: 20110828-0902
• [Presentation] Ab-initio calculation for magnetism of Fe-Phthalocyanine molecules on Au(111) surface (2011)
  • Author(s): E. Minamitani, D. Matsunaka, N. Tsukahara, N. Takagi, Maki Kawai, Y. Kim
  • Organizer: 28th European Conference on Surface Science
  • Place of Presentation: Wroclaw, Poland
  • Year and Date: 20110828-0902
• [Presentation] 分子吸着による配位子場操作を用いた鉄フタロシアニンの近藤状態の制御 (2010)
  • Author(s): 伊藤彩夏、太田奈緒香、塚原規志、白木将、高木紀明、川合眞紀
  • Organizer: 日本物理学会
  • Place of Presentation: 大阪府立大
  • Year and Date: 20100923-26
• [Presentation] Magnetic anisotropy of iron(II) phthalocyanine adsorbed on Ag(110) surfaces (2010)
  • Author(s): T. Fukushima, K. Noto, M. Sakai, N. Tsukahara, S. Shiraki, T. Nakamura, N. Takagi, M. Kawai
  • Organizer: European Conference on Surface Science ECOSS 27
  • Place of Presentation: Netherland
  • Year and Date: 20100830-0903
• [Presentation] Building-up of magnetic order from a single-impurity Kondo regime to two-dimensional Kondo lattice (2010)
  • Author(s): N. Tsukahara, S. Shiraki, S. Itou, N. Ohta, N. Takagi., T. Nakamura, K. Kodama, T. Kinoshita, M. Kawai
  • Organizer: European Conference on Surface Science ECOSS 27
  • Place of Presentation: Netherland
  • Year and Date: 20100830-0903
• [Presentation] Switching of Kondo resonance state by tuning the molecular ligand field of iron(II) phthalocyanine on Au(111) (2010)
  • Author(s): S. Itou, N. Tsukahara, N. Ohta, S. Shiraki, N. Takagi, M. Kawai
  • Organizer: European Conference on Surface Science ECOSS 27
  • Place of Presentation: Netherland
  • Year and Date: 20100830-0903
• [Presentation] Molecular magnetism at surfaces from a single molecule to the two-dimensional lattice (2010)
  • Author(s): N. Takagi
  • Organizer: Molecular magnetism at surfaces from a single molecule to the two-dimensional lattice
  • Place of Presentation: Universtity of Tokyo
  • Year and Date: 20100705-07
• [Presentation] Molecular magnetism at surfaces from a single molecule to the two-dimensional lattice (2010)
  • Author(s): N. Takagi
  • Organizer: International Conference on Core Research and Engineering Science of Advanced materials
  • Place of Presentation: Osaka Univ., Japan
  • Year and Date: 20100530-0604
• [Presentation] Molecular magnetism at surfaces from a single molecule to two-dimensional superlattice (2010)
  • Author(s): N. Takagi
  • Organizer: Korea Physical Society, Pioneering symposium, Korea-Japan, progresses in spintronics devices
  • Place of Presentation: Daejon, Korea
  • Year and Date: 2010-04-22
• [Presentation] 貴金属表面上に形成したCoナノドットの構造と電子状態の研究 (2010)
  • Author(s): 酒井真利、白木将、高木紀明、川合眞紀
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山市
  • Year and Date: 2010-03-23
• [Presentation] Molecular Spins at Surfaces (2009)
  • Author(s): N. Takagi
  • Organizer: 7th International Symposium on Atomic Level Characterizations for New Materials and Devices' 09
  • Place of Presentation: Maui, USA
  • Year and Date: 20091206-11
• [Presentation] 表面磁性分子からなる近藤格子 (2009)
  • Author(s): 高木紀明、塚原規志、伊藤彩夏、太田奈緒香、白木将、川合眞紀
  • Organizer: 表面・界面スペクトロスコピー2009
  • Place of Presentation: 札幌
  • Year and Date: 2009-12-05
• [Presentation] 吸着分子の超構造形成に伴う表面近藤格子; Au(111)表面上の鉄(II)フタロシアニン分子 (2009)
  • Author(s): 塚原規志、伊藤彩夏、能登健一、白木将、高木紀明、川合眞紀
  • Organizer: 日本物理学会
  • Place of Presentation: 熊本
  • Year and Date: 2009-09-26
• [Presentation] Adsorption control of spin Hamiltonian of a single iron(II) phthalocyanine molecule on metal substrates (2009)
  • Author(s): N. Tsukahara, K. Noto, S. Itou, S. Shiraki, N. Takagi, M. Kawai
  • Organizer: 26th European Conference on. Surface Science
  • Place of Presentation: Parma, Italy
  • Year and Date: 2009-09-02
• [Presentation] Spin state, magnetic anisotropy and Kondo effect, iron(II) phthalocyanine on metal surfaces (2009)
  • Author(s): N. Takagi
  • Organizer: ISSP workshop on physics and new phenomena of pai-electronic interfaces
  • Place of Presentation: Kashiwa, Japan
  • Year and Date: 2009-08-12
• [Remarks]
  • URL: http://www.surfchem.k.u-tokyo.ac.jp/