Study of unoccupied spin and electronic structure for solid surface

2013 Fiscal Year Final Research Report

• Project/Area Number: 23540371
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: Hiroshima University
• Principal Investigator: HIROFUMI Namatame 広島大学, 放射光科学研究センター, 教授 (10218050)
• Project Period (FY): 2011 – 2013
• Keywords: 光電子分光 / 逆光電子分光 / Boersch効果 / フォトカソード / スピン偏極

Research Abstract

We investigated the electronic states of novel materials such as high Tc superconductors and topological insulators. To realize high stability of excitation photon energy, we tried to make clear relationship between the energy resolution and environmental parameters, atmosphere temperature and heat load of optical elements in the beamline. Next we investigated electron emission form photocathode and electron transport optics to develop higher energy resolution inverse photoemission spectrometer. Thermal electron source has large energy broadening depend on temperature intrinsically. The energy spread is decreased using electron energy analyzer, but its is limited by the space charge effect especially for low pass energy. Next we study about low temperature photocathode and electron transfer optics. Boersch effect of electron beam inside the electron optics determine the upper limit of energy resolution .

Research Products

• [Journal Article] Characteristic two-dimensional Fermi surface topology of high-Tc iron-based superconductors (2014)
  • Author(s): Sunagawa, M, Ishiga, T , Tsubota, K, Jabuchi, T, Sonoyama, J, Iba, K, Kudo, K, Nohara, M, Ono, K, Kumigashira, H, Matsushita, T, Arita, M, Shimada, K , Namatame, H, Taniguchi, M, Wakita, T, Muraoka, Y , Yokoya, T
  • Journal Title: SCIENTIFIC REPORTS Volume: 4 Pages: 4381
  • Peer Reviewed
• [Journal Article] Photoelectron Spin-Polarization Control in the Topological Insulator Bi2Se3 (2014)
  • Author(s): Zhu, ZH, Veenstra, CN, Zhdanovich, S, Schneider, MP, Okuda, T, Miyamoto, K , Zhu, SY, Namatame, H, Taniguchi, M , Haverkort, MW, Elfimov, IS, Damascelli, A
  • Journal Title: PHYSICAL REVIEW LETTERS Volume: 112 Pages: 076802
  • Peer Reviewed
• [Journal Article] Many-body interactions and Rashba splitting of the surface state on Cu(110) (2014)
  • Author(s): Jiang, J, Tsirkin, SS, Shimada, K, Iwasawa, H, Arita, M, Anzai, H, Namatame, H, Taniguchi, M, Sklyadneva, IY, Heid, R, Bohnen, KP, Echenique, PM, Chulkov, EV
  • Journal Title: PHYSICAL REVIEW. B Volume: 89 Pages: 085404
  • Peer Reviewed
• [Journal Article] Experimental Evidence of Hidden Topological Surface States in PbBi4Te7 (2013)
  • Author(s): Okuda, T, Maegawa, T, Ye, M, Shirai, K, Warashina, T, Miyamoto, K, Kuroda, K, Arita, M, Aliev, ZS, Amiraslanov, IR, Babanly, MB, Chulkov, EV, Eremeev, SV, Kimura, A, Namatame, H, Taniguchi, M
  • Journal Title: PHYSICAL REVIEW LETTERS Volume: 111 Pages: 206803
  • Peer Reviewed
• [Journal Article] Unoccupied topological surface state in Bi2Te2Se (2013)
  • Author(s): Nurmamat, M, Krasovskii, EE , Kuroda, K, Ye, M, Miyamoto, K , Nakatake, M, Okuda, T, Namatame, H, Taniguchi, M , Chulkov, EV, Kokh, KA, Tereshchenko, OE, Kimura, A
  • Journal Title: PHYSICAL REVIEW. B Volume: 88 Pages: 08130
  • Peer Reviewed
• [Journal Article] End station for nanoscale magnetic materials study : Combination of scanning tunneling microscopy and soft X-ray magnetic circular dichroism spectroscopy (2012)
  • Author(s): Ueno, T, Sawada, M, Kishimizu, Y, Kimura, A , Namatame, H, Taniguchi, M
  • Journal Title: REVIEW OF SCIENTIFIC INSTRUMENTS Volume: 83 Pages: 123903
  • Peer Reviewed
• [Journal Article] Observation of a highly spin-polarized topological surface state in GeBi2Te4 (2012)
  • Author(s): Okamoto, K, Kuroda, K, Miyahara, H, Miyamoto, K, Okuda, T, Aliev, ZS, Babanly, MB, Amiraslanov, IR, Shimada, K, Namatame, H, Taniguchi, M, Samorokov, DA, Menshchikova, TV, Chulkov, EV, Kimura, A
  • Journal Title: PHYSICAL REVIEW. B Volume: 86 Pages: 195304
  • Peer Reviewed
• [Journal Article] Topological Surface States with Persistent High Spin Polarization across the Dirac Point in Bi2Te2Se and Bi2Se2Te (2012)
  • Author(s): Miyamoto, K, Kimura, A, Okuda, T, Miyahara, H, Kuroda, K, Namatame, H, Taniguchi, M, Eremeev, SV, Menshchikova, TV, Chulkov, EV, Kokh, KA, Tereshchenko, OE
  • Journal Title: PHYSICAL REVIEW LETTERS Volume: 109 Pages: 166802
  • Peer Reviewed
• [Journal Article] Spin and orbital angular momentum structure of Cu(111) and Au(111) surface states (2012)
  • Author(s): Kim, B, Kim, CH, Kim, PJ, Jung, WS, Kim, YK, Koh, YY, Arita, M, Shimada, K, Namatame, H, Taniguchi, M, Yu, JJ, Kim, C
  • Journal Title: PHYSICAL REVIEW. B Volume: 85 Pages: 195402
  • Peer Reviewed
• [Journal Article] High-resolution photoelectron spectroscopy study of Kondo metals : SmSn3 and Sm0.9La0.1Sn3 (2012)
  • Author(s): Yamaoka, H, Thunstrom, P, Jarrige, I , Shimada, K, Tsujii, N, Arita, M, Iwasawa, H, Hayashi, H, Jiang, J, Habuchi, T, Hirayama, D, Namatame, H, Taniguchi, M, Murao, U, Hosoya, S, Tamaki, A , Kitazawa, H
  • Journal Title: PHYSICAL REVIEW. B Volume: 85 Pages: 115120
  • Peer Reviewed
• [Journal Article] Te concentration dependent photoemission and inversephotoemission study of FeSe1-xTex (2012)
  • Author(s): Yokoya, T, Yoshida, R, Utsumi, Y, Tsubota, K, Okazaki, H, Wakita, T , Mizuguchi, Y, Takano, Y, Muro, T, Kato, Y, Kumigashira, H, Oshima, M, Harima, H, Aiura, Y , Sato, H, Ino, A, Namatame, H, Taniguchi, M, Hirai, M, Muraoka, Y
  • Journal Title: SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS Volume: 13 Pages: 054403
  • Peer Reviewed
• [Journal Article] Electronic structure of a narrow-gap semiconductor FeGa3 investigated by photoemission and inverse photoemission spectroscopies (2011)
  • Author(s): Arita, M , Shimada, K, Utsumi, Y, Morimoto, O, Sato, H, Namatame, H, Taniguchi, M, Hadano, Y, Takabatake, T
  • Journal Title: PHYSICAL REVIEW. B Volume: 83 Pages: 245116
  • Peer Reviewed
• [Presentation] トポロジカル絶縁体Bi2Se3における表面状態の偏光に依存した光電子のスピン偏極度 (2014)
  • Author(s): 黒田健太, 棗田翼, 白井開渡, 宮本幸治, 奥田太一, 植田義文, 生天目博文, 谷口雅樹, 木村昭夫
  • Organizer: 第27回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 広島国際会議場
  • Year and Date: 2014-01-13
• [Presentation] La/W(110)の共鳴角度分解光電子分光 (2014)
  • Author(s): 永田偉士, 羽渕隆文, Eike Fabian Schwier, 岩澤英明, 姜健, 林博和, 堀家大希, 相浦義弘, 島田賢也, 生天目博文, 谷口雅樹
  • Organizer: 第27回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 広島国際会議場
  • Year and Date: 2014-01-11
• [Presentation] 偏光依存高分解能角度分解光電子分光によるPb(110)単結晶の表面・バルク電子状態 (2014)
  • Author(s): 堀家大希, E.F. Schwier, 有田将司, 宮本幸治, 姜健, 岩澤英明, 永田偉士, 林博和, 相浦義弘, 島田賢也, 生天目博文, 谷口雅樹
  • Organizer: 第27回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 広島国際会議場
  • Year and Date: 2014-01-11
• [Presentation] 低速電子回折スピン検出器による高効率3次元スピン解析装置の開発 (2013)
  • Author(s): 奥田太一, 宮本幸治, 白井開渡, 黒田健太, 木村昭夫, 生天目博文, 谷口雅樹
  • Organizer: 第26回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 名古屋大学ES総合館
  • Year and Date: 2013-01-14
• [Presentation] 過剰ドープBi1.54Pb0.6Sr1.88CaCu2O8+δの準粒子繰り込み構造とその波数依存性 (2013)
  • Author(s): 安齋太陽, 井野明洋, 市來健吾, 有田将司, 生天目博文, 谷口雅樹, 石角元志, 藤田和博, 石田茂之, 内田慎一
  • Organizer: 過剰ドープBi1.54Pb0.6Sr1.88CaCu2O8+δの準粒子繰り込み構造とその波数依存性
  • Place of Presentation: 名古屋大学ES総合館
  • Year and Date: 2013-01-12
• [Presentation] トポロジカル絶縁体TlBiSe2のヘリカルスピン構造とキャリア制御 (2013)
  • Author(s): 白井開渡, 黒田健太, 岡本和晃, 叶茂, 宮原寛和, 宮本幸治, 奥田太一, 有田将司, 島田賢也, 生天目博文, 谷口雅樹, 植田義文, 木村昭夫
  • Organizer: 第26回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 名古屋大学ES総合館
  • Year and Date: 2013-01-12
• [Presentation] Ni/Pd(001)超薄膜の軟X線内殻吸収磁気円二色性分光 (2013)
  • Author(s): 上野哲朗, 澤田正博, 古田尚史, 岸水悠介, 生天目博文, 谷口雅樹
  • Organizer: 第26回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 名古屋大学ES総合館
  • Year and Date: 2013-01-12
• [Presentation] W(110)のディラックコーン型スピン偏極表面電子構造 (2012)
  • Author(s): 宮本幸治, 木村昭夫, 黒田健太, 奥田太一, 島田賢也, 生天目博文, 谷口雅樹, M.Donath
  • Organizer: 第25回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 佐賀県鳥栖市民文化会館・中央公民館
  • Year and Date: 2012-01-09
• [Presentation] 放射光角度分解光電子分光によるBi2212の超伝導転移に伴う繰り込み効果の研究 (2012)
  • Author(s): 市來健吾, 安斎太陽, 中島陽祐, 原豪太郎, 長門真平, 井野明洋, 有田将司, 生天目博文, 谷口雅樹, 石田茂之, 石角元志, 内田慎一
  • Organizer: 第25回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 佐賀県鳥栖市民文化会館・中央公民館
  • Year and Date: 2012-01-08
• [Presentation] Bi2Sr2Ca0.8Dy0.2Cu2O8+δの準粒子構造の低エネルギー励起角度分解光電子分光 (2012)
  • Author(s): 安齋太陽, 井野明洋, 加茂剛, 藤田泰輔, 有田将司, 生天目博文, 谷口雅樹, 藤森淳, Z.-X. Shen, 藤田和博, 石角元志, 石田茂之, 内田慎一
  • Organizer: 第25回日本放射光学会年会・放射光科学合同シンポジウム
  • Place of Presentation: 佐賀県鳥栖市民文化会館・中央公民館
  • Year and Date: 2012-01-08
• [Remarks]
  • URL: http://www.hsrc.hiroshima-u.ac.jp