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Recent Topics

  • Single molecule magnetism at surfaces, Kondo physics and magnetic anisotropy

  • Exploring topological quantum matters, silicene, Bi films and Weyl semimentals

  • Electron transport & electron-phonon/spin coupling

  • Spin orbit interaction in unoccupied states


最近の研究テーマ
  • 表面単分子磁性　　=>「近藤効果」

  • シリセンなど2次元トポロジカル物質　　=>「シリセン」

  • 分子の電気伝導特性および電子ーフォノン/スピン相互作用　　=>「電気伝導」　「非弾性励起過程」

  • 非占有電子状態におけるスピン軌道相互作用　　=>「IPS-鏡像状態」

Many thanks to my coworkers; Dr. Ryuichi Arafune, Prof. Dr. Maki Kawai, Prof. Dr. Susumu Shiraki, Dr. Noriyuki Tsukahara, Dr. Emi Minamitani, Prof. Dr. Chun-Liang Lin as well as many students.

Related Papers

Single Molecule Magnetism at Surfaces

“Single Molecule Quantum Dot as a Kondo Simulator”, Nat. Commun. 8, 16012 (2017) .

“Model Hamiltonian Approach to Magnetic Anisotropy of Iron Phthalocyanine on Solid Surface”, Phys. Rev. B 94, 205402 (2016).

“Impact of Reduced Symmetry on Magnetic Anisotropy of a Single Iron Phthalocyanine Molecule on a Cu Substrate”, J. Chem. Phys. 144, 044701 (2016).

“Controlling Orbital-Selective Kondo Effects in a Single Molecule through Coordination Chemistry”, J. Chem. Phys. 141, 054702 (2014).

“Symmetry-Driven Novel Kondo Effect in a Molecule”, Phys. Rev. Lett. 109, 086602 (2012).

“Density Functional Theory Calculation for Magnetism of Fe-Phthalocyanine Molecules on Au(111)”, e-Journal Surf. Sci. Nanotech. 10, 38 (2012).

“Evolution of Kondo Resonance from a Single Impurity Molecule to the Two-Dimensional Lattice”, Phys. Rev. Lett. 106, 187201 (2011).

“Adsorption-Induced Switching of Magnetic Anisotropy in a Single Iron(II) Phthalocyanine Molecule on Oxidized Cu(110) Surface”, Phys. Rev. Lett. 102, 167203 (2009).

2D Materials --Silicene, X-enes and TMDCs-

“Quasiparticle Scattering in Type-II Weyl semimetal MoTe2", J. Phys. Condensed Matters 30, 105703 (2018).

“Visualizing Type-II Weyl Points in Tungsten Ditelluride by Quasiparticle Interference”, ACS Nano 11, 11459 (2017).

“Transport Characteristics of a Silicene Nanoribbon on Ag(110)”, Beilstein J. Nanotechnol. 8, 1699 (2017).

“Structural Evolution of Bi Thin Films on Au(111) Revealed by Scanning Tunneling Microscopy”, Phys. Rev. B 96, 205402 (2017).

“Surface Structure of Novel Semimetal WTe2”, Appl. Phys. Express 10, 045702 (2017).

“Silicene on Ag(111)”, in Encyclopedia of Interfacial Chemistry - Surface Science and Electrochemistry, Ed. F. Netzer, Elsevier, 312-317 (2017).

“Spectroscopic Identification of Ag-Terminated “Multilayer Silicene” Grown on Ag(111)”, J. Phys. Chem. C 120, 6689 (2016).

“Determination of the Geometric Structure of “Multilayer Silicene” Grown on Ag(111) by Dynamical Low Energy Electron Diffraction and Scanning Tunneling Microscopy”, Surf. Sci. 651, 70 (2016).

“Silicene on Ag(111): Structure Evolution and Electronic Structure”, in Silicene - Structure, Properties and Applications, Eds. M. J. S. Spencer, T. Morishita, Springer, pp.143-165 (2016).

“Silicene on Ag(111): Geometric and Electronic Structures of a New Honeycomb Material of Si”, Prog. Surf. Sci. 90, 1 (2015).

“One-Dimensional Edge State of Bi Thin Film Grown on Si(111)”, Appl. Phys. Lett. 107, 031602 (2015).

“Pragmatic Application of Abstract Algebra to Two-Dimensional Lattice Matching”, e-J. Surf. Sci. Nanotech. 13, 361 (2015).

“Electronic Structure of the 4x4 Silicene Monolayer on Semi-Infinite Ag(111)”, New J. Phys. 17, 015013 (2015).

“Electronic Decupling by h-BN Layer between Silicene and Cu(111): A DFT Based Analysis”, New J. Phys. 16, 105019 (2014).

“Determination of Atomic Positions in Silicene on Ag(111) by Low-Energy Electron Diffraction”, Surf. Sci. 623, 25 (2014).

Comment on “Evidence for Dirac Fermions in a Honeycomb Lattice Based on Silicon”, Phys. Rev. Lett. 110, 229701 (2013).

“Substrate-Induced Symmetry Breaking in Silicene”, Phys. Rev. Lett. 110, 076801 (2013).

“Structural Transition of Silicene on Ag(111)”, Surf. Sci. 608, 297 (2013).

“Structure of Silicene Grown on Ag(111)”, Appl. Phys. Express 5, 045802 (2012).

Transport, electron-spin/phonon coupling

“Inelastic electron tunneling spectroscopy by STM for phonons at solid surfaces and interfaces ", Prog. Surf. Sci., in press (2018).

“Electron Transport through a Single Molecule in Scanning Tunneling Microscopy Junction”, in Molecular Architectonics The Third Stage of Single Molecule Electronics, Ed. T. Ogawa, Springer, pp.355-379 (2017).

“Surface Phonon Excitation on Clean Metal Surfaces in Scanning Tunneling Microscopy”, Phys. Rev. B 93, 085411 (2016).

“Transport Characteristics of a Single C60-Molecule Junction Revealed by Multiple Andreev Reflections”, Phys. Rev. B 90, 241405(R) (2014).

“Enhancement of Inelastic Electron Tunneling Conductance Caused by Electronic Decoupling in Iron Phthalocyanine Bilayer on Ag(111)”, J. Phys. Chem. C 117, 21832 (2013).

“Mode-Selective Electron-Phonon Coupling in Laser Photoemission on Cu(110)”, Phys. Rev. B 88, 224301 (2013).

“Nature of Electron Transport by Pyridine-Based Tripodal Anchors: Potential for Robust and Conductive Single-Molecule Junctions with Gold Electrodes”, J. Am. Chem. Soc. 133, 3014 (2011).

“Mechanism of Vibrational Excitation in Inelastic Photoemission from Surfaces”, Phys. Rev. B 80, 073407 (2009).

“Adsorption-Induced Switching of Magnetic Anisotropy in a Single Iron(II) Phthalocyanine Molecule on Oxidized Cu(110) Surface”, Phys. Rev. Lett. 102, 167203 (2009).

Spin Orbit Interaction in unoccupied states

“Spin-orbit interaction in unoccupied surface states", Prog. Surf. Sci., in press (2018).

“Rashba Splitting in Image Potential State Investigated Using Circular Dichroism Two-Photon Photoemission Spectroscopy”, Phys. Rev. B 94, 115412 (2016).

Comment on “Rashba Spin-Orbit Coupling in Image Potential States”, Phys. Rev. Lett. 117, 239701 (2016).

“Linewidth Analysis of Image Potential States on Noble Metal Surfaces with High-Energy Resolved Two-Photon Photoemission Spectroscopy”, Surf. Inter. Anal. 48, 1194 (2016).