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2006 Fiscal Year Annual Research Report

気体分子の内殻光電子分光:共鳴、量子干渉、非断熱効果と内殻イオン化状態の構造決定

Research Project

Project/Area Number 18340116
Research InstitutionTohoku University

Principal Investigator

上田 潔  東北大学, 多元物質科学研究所, 教授 (50151791)

Co-Investigator(Kenkyū-buntansha) プルンパ ゲオルグ  東北大学, 多元物質科学研究所, 助手 (90400431)
Keywords内殻光電子分光 / 同時計測 / 形状共鳴 / 角度分解光電子分光 / 分子座標系
Research Abstract

1.N_2,C_2H_2,CO_2,NO,N_2O分子について、SPring-8 BL27SUの高分解能光電子分光装置を用いて、内殻光電子スペクトルの振動分布をイオン化しきい地近傍から約50eV高い励起エネルギーまでの範囲で測定を行った。これらの分子について、内殻光イオン化における形状共鳴の振動依存性を取り込んだ第一原理計算を行い、実験結果との比較から、形状共鳴が振動分布に与える影響を明らかにした。
2.CO,N_2,CO_2,N_2O分子について、形状共鳴の影響を受けない領域での内殻光電子スペクトルの振動分布から内殻イオン化状態の平衡安定構造を決定し、第一原理計算との詳細な比較を行った。
3.N_2、C_2H_2分子の内殻軌道は1s軌道の重ねあわせで記述され、内殻光電子放出はYoungの2重スリット実験のスリットを2個の原子に置き換えたものに相当する。これらの分子について、SPring-8 BL27SUの高分解能光電子分光装置を用いて、1s正孔状態のgerade-ungerade対称性を分離した内殻光電子スペクトルをイオン化しきい地近傍から約1keV高い励起エネルギーまでの範囲で観測し、理論計算との比較から、高エネルギー光電子放出におけるYoungの2重スリット干渉効果、弾性散乱、反跳効果を明らかにした。
4.SPring-8 BL27SUに設置した電子・イオン運動量同時計測装置を用いてCO_2,NO分子の内殻光電子放出の分子座標系における角度分布を形状共鳴領域で測定し、第一原理計算との比較を行った。
5.電子・イオン運動量同時計測装置の性能を向上させることを目指し、新たな超高真空容器を設計製作した。

  • Research Products

    (30 results)

All 2007 2006

All Journal Article (30 results)

  • [Journal Article] Symmetry and vibrationally resolved absorption spectra near the O K edge of N_2O : Experiment and theory2007

    • Author(s)
      T.Tanaka
    • Journal Title

      Chemical Physics Letters 435・4-6

      Pages: 182-187

  • [Journal Article] Site-selective ion pair production via normal Auger decay of free CH_3F molecules studied by electron-ion-ion coincidence spectroscopy2007

    • Author(s)
      H.Fukuzawa
    • Journal Title

      Chemical Physics Letters 436? 1-3

      Pages: 51-56

  • [Journal Article] Vibrational resolved nitrogen K-shell photoelectron spectra of the dinitrogen oxide molecule : Experiment and theory2007

    • Author(s)
      M.Ehara
    • Journal Title

      Chemical Physics Letters 438・1-3

      Pages: 14-19

  • [Journal Article] Projection methods for the analysis of molecilar-frame photoelectron angular distributions II : Nondipole contributions2007

    • Author(s)
      A.M.Grum-Grzhimailo
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena 155・1-3

      Pages: 100-103

  • [Journal Article] A symmetry analysis of circular dichroism in photoabsorption of fixed-in-space molecules : Chiral and nondipole effects2007

    • Author(s)
      A.N.Grum-Grzhimailo
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena 155? 1-3

      Pages: 104-108

  • [Journal Article] Electron-ion coincidence momentum spactroscopy : Its application to Ar dimer interatomic decay2007

    • Author(s)
      K.Ueda
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena 155? 1-3

      Pages: 113-118

  • [Journal Article] Vibrationally resolved C and O 1s photoelectron spectra of carbon dioxide2007

    • Author(s)
      T.Hatamoto
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena 155? 1-3

      Pages: 54-57

  • [Journal Article] Projection methods for the analysis of molecilar-frame photoelectron angular distributions I : Minimal parameterizations in the dipole limit2007

    • Author(s)
      R.R.Lucchese
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena 155? 1-3

      Pages: 95-99

  • [Journal Article] Electronic structure of core-excited and core-ionized methyloxirane2007

    • Author(s)
      M.N.Piancastelli
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena 156-158・1

      Pages: 259-264

  • [Journal Article] Young's double-slit experiment using two-center core-level photoemission : Photoelectron recoil effects2007

    • Author(s)
      F.Gel' mukhanov
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena 156-158・1

      Pages: 265-269

  • [Journal Article] Electron-ion multiple coincidence spectroscopy for small molecules and clusters2007

    • Author(s)
      N.Saito
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena 156-158・1

      Pages: 68-72

  • [Journal Article] Young's double-slit experiment using two-center core-level photoemission : Photoelectron scattering effects2007

    • Author(s)
      X.-J.Liu
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena 156-158・1

      Pages: 73-77

  • [Journal Article] Molecular-frame photoelectron and electron-frame photoion angular distributions and their interrelation2007

    • Author(s)
      X.-J.Liu
    • Journal Title

      Journal of Physics B : Atomic, Molecular and Optical Physics 40・3

      Pages: 485-496

  • [Journal Article] Evidence of sequential interatomic decay in argon trimer obtained by electron-triple-ion coincidence spectroscopy2007

    • Author(s)
      X.-J.Liu
    • Journal Title

      Journal of Physics B : Atomic, Molecular and Optical Physics 40・1

      Pages: F1-F7

  • [Journal Article] Electron-ion-ion coincidence experiments for photofragmentation of polyatomic molecules using pulsed electric fields : Treatment of random coincidence2007

    • Author(s)
      G.Prumper
    • Journal Title

      Nuclear Instruments and Methods in Physics Research A 574・2

      Pages: 350-362

  • [Journal Article] Electron-ion-ion triple-coincidence spectroscopic study of site-specific fragmentation caused by Si : 2p core-level photoionization of F_3SiCH_2CH_2Si(CH_3)_3 vapor2007

    • Author(s)
      S.Nagaoka
    • Journal Title

      Physical Review A 75・2

      Pages: 020502(R)-1-4

  • [Journal Article] Interference modulation in the vibrationally resolved photoionization of the 1σ_g and 1σ_u core levels of the N_2 molecule2006

    • Author(s)
      S.K.Semenov
    • Journal Title

      Journal of Physics. B, Atomic, molecular and optical physics 39・12

      Pages: L261-L267

  • [Journal Article] Role of the recoil effect in two-center interference in X-ray photoionization2006

    • Author(s)
      K.Ueda
    • Journal Title

      Chemical Physics 329・1-3

      Pages: 329-337

  • [Journal Article] Quenching and restoring of the A ^2II cationic state in resonant Auger electron spectra of CO in the vicinity of the O 1s -> 2n resonance2006

    • Author(s)
      R.Feifel
    • Journal Title

      Physical Review A 74・6

      Pages: 062717(1)-062717(6)

  • [Journal Article] Symmetry- and vibrationally-resolved C K-shell photoionization studies Of C_2H_22006

    • Author(s)
      M.Hoshino
    • Journal Title

      Chemical Physics Letters 421・1-3

      Pages: 256-260

  • [Journal Article] High resolution O 1s photoelectron shake-up satellite spectrum of H_2O2006

    • Author(s)
      R.Sankari
    • Journal Title

      Chemical Physics Letters 422・1-3

      Pages: 51-57

  • [Journal Article] Angle-resolved ion yield spectroscopy for the 1s -> 3n excited states in hot N_2O molecules2006

    • Author(s)
      T.Tanaka
    • Journal Title

      Chemical Physics Letters 428・1-3

      Pages: 34-38

  • [Journal Article] Site-specific fragmentation following F 1s photoionization of free CF_3SF_5 molecules studied by electron-ion coincidence spectroscopy2006

    • Author(s)
      H.Fukuzawa
    • Journal Title

      Chemical Physics Letters 431・4-6

      Pages: 253-256

  • [Journal Article] Experimental Evidence of Interatomic Coulombic Decay from the Auger Final States in Argon Dimers2006

    • Author(s)
      Y.Morishita
    • Journal Title

      Physical Review Letters 96・24

      Pages: 243402(1)-(4)

  • [Journal Article] Vibrationally resolved partial cross sections and asymmetry parameters for carbon K-shell photoionization of the CO_2 molecule2006

    • Author(s)
      M.Hoshino
    • Journal Title

      Journal of Physics. B, Atomic, molecular and optical physics 39・14

      Pages: 3047-3056

  • [Journal Article] Vibrationally resolved partial cross sections and asymmetry parameters for oxygen K-shell photoionization of the CO_2 molecule2006

    • Author(s)
      M.Hoshino
    • Journal Title

      Journal of Physics. B, Atomic, molecular and optical physics 39・17

      Pages: 3655-3663

  • [Journal Article] A new apparatus for electron-ion multiple coincidence momentum imaging spectroscopy2006

    • Author(s)
      Y.Morishita
    • Journal Title

      Radiation Physics and Chemistry 75・11

      Pages: 1977-1980

  • [Journal Article] Young's double-slit experiment using core-level photoemission from N_2 : revisiting Cohen-Fano's two-center interference phenomenon2006

    • Author(s)
      X.-J.Liu, N.
    • Journal Title

      Journal of Physics. B, Atomic, molecular and optical physics 39・23

      Pages: 4801-4817

  • [Journal Article] Comparison of the nuclear motion in the ultrafast fragmentation of SF_6, CF_4 and CH_3F2006

    • Author(s)
      G.Pruemper
    • Journal Title

      Radiation Physics and Chemistry 75・11

      Pages: 2019-2023

  • [Journal Article] C1s and O1s photoelectron satellite spectra of CO with symmetry-dependent vibrational excitations2006

    • Author(s)
      M.Ehara
    • Journal Title

      The Journal of Chemical Physics 125・11

      Pages: 114304(1)-(10)

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Published: 2008-05-08   Modified: 2016-04-21  

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