Excitation Order Research Team
Team Leader
Shik SHIN (D.Sci.)
Our aims are to study the material science and photo property. At the same time, we develop cut-edging spectroscopy of soft X-ray in SPring-8. Because the soft X-ray is the most suitable light for the measurements of electron property, we research many kinds of materials by high resolution photoelectron spectrometry, fluorescent soft X-ray spectrometry and Raman scattering spectrometry. The high resolution photoelectron spectrometry is an efficient method to know the information of electron in a material. When we measure 3d and 4f state of strongly-correlated materials in Fermi surface, we can reveal the mechanism of super conductivity and phase transition of metallic insulator. The fluorescent soft X-ray spectrometry and the Raman scattering spectrometry are a method to know local state density of materials. We research electron state of hyper-complex materials like liquid and biological materials, though they have been never researched because there is no way to research.
- Soft x-ray emission study on the electronic structure of solids, liquids and biomaterials using high energy-resolution soft x-ray emission spectrometer
- Ultrahigh-resolution photoemission study on strongly correlated systems, thin films by pulsed laser deposition(PLD) and solid surfaces
- Soft x-ray diffraction using highly coherent X-ray beam
- January 24 ,2011
- Researchers unravel mystery how transparent thin membrane made of titanium dioxide transforms into magnet upon addition of cobalt
- June 21 ,2010
- World's first successful observation of the shape of molecular orbits in solution
- March 8 ,2010
- True identity of titan oxide uncovered in three temperature-dependent phases
- February 17 ,2010
- Origin of helical movement of electron spin in ironic nano-ordered thin membrane elucidated
- October 01, 2009
- Electronic states of molecule in aqueous solution observed for the first time using soft X-rays
- August 11, 2009
- Discovery of heterogeneous fine structure in liquid water thought to have been homogeneous
- June 12, 2008
- Ice shadow behind liquid water, disproving the common notion that water indicates normal continuous phase transitions, shown by the presence of two electronic states in liquid water
- May 15, 2008
- Elucidating the riddle of Professor Mott, Nobel prize winner for physics in 1977: why is nickel oxide not metallic?
- April 07, 2008
- The world's first discrimination of enantiomers by specially devised X-ray diffraction measurement
(Finding a mutually interactive diffraction principle between circularly polarized X-rays and chiral structure)
- December 22, 2011
- Imaging electrons by the slice
A new spectroscopy technique enables the investigation of two-dimensional electron states both at the surface and within crystals
- April 22, 2011
- Mediating magnetism
Titanium oxide doped with cobalt produces magnetic properties at room temperature via a newly discovered mechanism
- April 23,2010
- Unveiling spiral magnetism
Photoemission experiments shed light on the origin of an enigmatic type of magnetism in iron
- T.Tokushima, Y.Horikawa, H.Arai, Y.Harada, O.Takahashi, L.G.M.Pettersson, A.Nilsson, S.Shin.:
"Polarization dependent resonant x-ray emission spectroscopy of D2O and H2O water: Assignment of the local molecular orbital symmetry"
The Journal of Chemical Physics., 136, 044517 (1-7) (2012) - Y.Harada, M.Kobayashi, H.Niwa, Y.Senba, H.Ohashi, T.Tokushima, Y.Horikawa, S.Shin, M.Oshima.:
"Ultrahigh resolution soft x-ray emission spectrometer at BL07SU in SPring-8"
Rev. Sci. Instrum. 83, 013116 (1-6) (2012) - M.Matsunami, M.Taguchi, A.Chainani, R.Eguchi, M.Oura, A.Sakai, S.Nakatsuji, S.Shin.:
"Kondo resonance in PrTi_2 Al_20 : Photoemissin spectroscopy and single-impurity Anderson model calculations"
Phys Rev. B., 84, 193101 (1-4) (2011) - K.Ishizaka, T.Kiss, T.Yamamoto, Y.Ishida, T.Saitoh, M.Matsunami, R.Eguchi, T.Ohtsuki, A.Kosuge, T.Kanai, M.NOhara, H.Takagi, S.Watanabe, S.Shin.:
"Femtosecond core-level photoemission spectroscopy on 1/T/-TaS_2 using a 60-eV laser source"
Phys Rev. B., 83, 081104 (1-4) (2011) - Y.Hiraoka, Y.Tanaka, T.Kojima, Y.Takata, M.Oura, Y.Senba, H.Ohashi, Y.Wakabayashi, S.Shin, T.Kimura.:
"Spin-chiral domains in Ba_0.5 Sr_1.5 Zn_2 Fe_12 O_22 observed by scanning resonant x-ray microdiffraction"
Phys Rev. B., 84, 064418 (1-7) (2011) - Y.Ishida, H.Kanto, A.Kikkawa, Y.Taguchi, Y.Ito, Y.Ota, K.Okazaki, W.Malaeb, M.Mulazzi, M.Okawa, S.Watanabe, C.T.Chen, M.Kim, C.Bell, Y.Kozuka, H.Y.Hwang, Y.Tokura, S.Shin.:
"Common origin of the circular-dichroism pattern in angle-resolved photoemission spectroscopy of SrTiO_3 and Cu_x Bi_2 Se_3"
Phys Rev. Lett., 107, 077601 (1-4) (2011) - T.Tokushima, Y.Horikawa, S.Shin.:
"Triple-path collector optics for grazing incident x-ray emission spectrometer"
Review of Scientific Instruments., 82, 073108 (1-5) (2011) - T.Shimojima, F.Sakaguchi, K.Ishizaka, Y.Ishida, T.Kiss, M.Okawa, T.Togashi, C.T.Chen, S.Watanabe, M.Arita, K.Shimada, H.Namatame, M.Taniguchi, K.Ohgushi, S.Kasahara, T.Terashima, T.Shibauchi, Y.Matsuda, A.Chainani, S.Shin.:
"Orbital-independent superconducting gaps in iron pnictides"
Science., 332, 564-567 (2011) - P.A.Bhobe, A.Chainani, M.Taguchi, R.Eguchi, M.Matsunami, T.Ohtsuki, K.Ishizaka, M.Okawa, M.Oura, Y.Senba, H.Ohashi, M.Isobe, Y.Ueda, S.Shin.:
"Electronic structure of an antiferromagnetic metal: CaCrO_3"
Phys Rev. B., 83,165132 (1-7) (2011) - T.Ohtsuki, A.Chainani, R.Eguchi, M.Matsunami, Y.Takata, M.Taguchi, Y.Nishino, K.Tamasaku, M.Yabashi, T.Ishikawa, M.Oura, Y.Senba, H.Ohashi, S.Shin.:
"Role of Ti 3/d/ carriers in mediating the ferromagnetism of Co:TiO_2 anatase thin films"
Phys Rev. Lett., 106, 047602 (1-4) (2011)
Principal Investigator
- Shik SHIN
- Team Leader
Staff Scientist
- Yoshikazu TANAKA
- Senior Research Scientist
- Ashish Atma CHAINANI
- Senior Research Scientist
- Munetaka TAGUCHI
- Research Scientist
- Jun MIYAWAKI
- Research Scientist
Student Trainee
- Gohshi INABA
- Junior Research Associate