Studies of Nanoscale Electronic States by Real Space Imaging in High Magnetic Fields

2009 Fiscal Year Final Research Report

• Project/Area Number: 17072003
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Tohoku University
• Principal Investigator: KOBAYASHI Norio Tohoku University, 金属材料研究所, 教授 (40111306)
• Co-Investigator(Kenkyū-buntansha): TAMEGAI Tsuyoshi 東京大学, 大学院・工学系研究科, 准教授 (30183073) ; HANAGURI Tetsuo 独立行政法人理化学研究所, 高木磁性研究室, 専任研究員 (40251326) ; MACHIDA Kazusige 岡山大学, 大学院・自然科学研究科, 教授 (50025491) ; OTO Kenichi 千葉大学, 大学院・理学研究科, 准教授 (30263198) ; NISHIZAKI Terukazu 東北大学, 金属材料研究所, 助教 (90261510)
• Project Period (FY): 2005 – 2009
• Keywords: 強磁場 / 実空間イメージング / 走査トンネル顕微鏡 / 磁気光学効果 / 強相関物質 / 酸化物超伝導体 / 2次元電子系 / 電子スピン偏極

Research Abstract

We have developed real space imaging techniques in high magnetic fields, such as scanning tunneling microscopy (STM), magneto-optical imaging, scanning Hall probe microscopy and electron spin polarization imaging. We have first succeeded in the STM operation up to 27 T in the hybrid magnet and in the highly-stable operation up to 11 T in the superconducting magnet. These techniques have been applied to investigate electronic and magnetic states in novel superconductors and magnetic materials and also electron density distribution in a 2D-electron system.

Research Products

• [Journal Article] Unconventional s-Wave Superconduc- tivity in Fe(Se, Te) (2010)
  • Author(s): T. Hanaguri, S. Niitaka, K. Kuroki, H. Takagi
  • Journal Title: Science Vol.328 Pages: 474-476
  • Peer Reviewed
• [Journal Article] Generic First-Order Orientation Tran- sition of Vortex Lattice in Type II Superconductors (2010)
  • Author(s): K.M. Suzuki, K. Inoue, P. Miranovic, M. Ichioka, K. Machida
  • Journal Title: J. Phys. Soc. Jpn Vol.79 Pages: 013702(1-4)
  • Peer Reviewed
• [Journal Article] Enhancement of Critical Current Densities in Co-Doped BaFe2As2 with Columnar Defects Introduced by Heavy-Ion Irradiation (2009)
  • Author(s): Y. Nakajima, Y. Tsuchiya, T. Taen, T. Tamegai, S. Okayasu, M. Sasase
  • Journal Title: Phys. Rev. B Vol.80 Pages: 1-4
  • Peer Reviewed
• [Journal Article] Narrow Carrier Concentration Range of Superconductivity and Critical Point of Pseudogap Formation Temperature in Pb- Substituted Bi2Sr2CuO6+δ (2009)
  • Author(s): K. Kudo, N. Okumura, Y. Miyoshi, T. Nishizaki, T. Sasaki, N. Kobayashi
  • Journal Title: J. Phys. Soc. Jpn Vol.78 Pages: 1-5
• [Journal Article] Possible Superconductivity above 25 K in Single-Crystalline Co-Doped BaFe2As2 (2009)
  • Author(s): Y. Nakajima, T. Taen, T. Tamegai
  • Journal Title: J. Phys. Soc. Jpn Vol.78 Pages: 023702,1-4
• [Journal Article] Electron Spin Imaging in Quantum Hall Devices by Kerr Rotation Meas- urement (2009)
  • Author(s): K. Oto, R. Inaba, T. Yamada, T. Yamazaki, K. Muro, Y. Hirayama, N. Kumada, H. Yamaguchi
  • Journal Title: Int. J. Mod. Phys. B Vol.23 Pages: 2750-2754
  • Peer Reviewed
• [Journal Article] Optically Induced Dynamic Nuclear Spin Polarization in Quantum Hall Regime Observed by a Time-Resolved Kerr Rotation (2009)
  • Author(s): D. Fukuoka, T. Yamazaki, N. Tanaka, K. Oto, K. Muro, Y. Hirayama, N. Kumada, H. Yamaguchi
  • Journal Title: Int. J. Mod. Phys. B Vol.23 Pages: 2755-2759
  • Peer Reviewed
• [Journal Article] Coherence Factors in a High-Tc Cuprate Probed by Quasi-Particle Scattering Off Vortices (2009)
  • Author(s): T. Hanaguri, Y. Kohsaka, M. Ono, M. Maltseva, P. Coleman, I. Yamada, M. Azuma, M. Takano, K. Ohishi, T. Takagi
  • Journal Title: Science Vol.323 Pages: 923-926
  • Peer Reviewed
• [Journal Article] Electronic inhomogeneity in Pb-substitued Bi2Sr2CuO6+d studied by STM/STS measurements (2009)
  • Author(s): K. Kudo, T. Nishizaki, N. Okamura, N. Kobayashi
  • Journal Title: J. Phys.: Conf. Series 150 Pages: 052133(1-4)
  • Peer Reviewed
• [Journal Article] Shrinkage of magnetic domains in superconductor/ferromagnet bilayer (2009)
  • Author(s): T. Tamegai, Y. Nakao, Y Nakajima
  • Journal Title: J. Phys.: Conf. Series 150 Pages: 052263(1-4)
  • Peer Reviewed
• [Journal Article] Time-resolved kerr rotation spectroscopy of spin dynamics in a quantum Hall system (2009)
  • Author(s): D. Fukuoka, N. Tanaka, K. Oto, K. Muro, Y. Hirayama, N. Kumada, H. Yamaguchi
  • Journal Title: AIP Conf. Proc 1199 Pages: 243-244
  • Peer Reviewed
• [Journal Article] Low-Energy Electronic State of the Structural Modulation-Free Bi2Sr2CuO6+ Studied by the Scanning Tunneling Microscopy (2008)
  • Author(s): K. Kudo, T. Nishizaki, N. Okumura, N. Kobayashi
  • Journal Title: J. Phys. Chem. Solids Vol.69 Pages: 3022-3026
  • Peer Reviewed
• [Journal Article] Spin Dynamics of Two-dimensional Electrons in a Quantum Hall System Probed by Time-resolved Kerr Rotation Spectroscopy (2008)
  • Author(s): D. Fukuoka, T. Yamazaki, N. Tanaka, K. Oto, K. Muro, Y. Hirayama, N. Kumada, H. Yamaguchi
  • Journal Title: Phys. Rev. B Vol.78 Pages: 041304(1-4)
  • Peer Reviewed
• [Journal Article] Specific-Heat Evidence for Two-Gap Superconductivity in the Ternary-Iron Silicide Lu2Fe3Si5 (2008)
  • Author(s): Y. Nakajima, T. Nakagawa, T. Tamegai, H. Harima
  • Journal Title: Phys. Rev. Lett Vol.100 Pages: 157001(1-4)
  • Peer Reviewed
• [Journal Article] Bulk and Local Magnetic Properties of Iron-Based Oxypnictide Supercon- ductor SmFeAsO1-xFx (2008)
  • Author(s): T. Tamegai, Y. Nakajima, Y. Tsuchiya, A. Iyo, K. Miyazawa, P.M. Shirage, H. Kito, H. Eisaki
  • Journal Title: J. Phys. Soc. Jpn Vol.77 Pages: 54-57
  • Peer Reviewed
• [Journal Article] Magnetic Field Dependence of Low- temperature Specific Heat in Sr2RuO4 (2008)
  • Author(s): K. Machida, M. Ichioka
  • Journal Title: Phys. Rev. B Vol.77 Pages: 184515(1-7)
  • Peer Reviewed
• [Journal Article] Quasiparticle Interference and Super- conducting Gap in Ca2-xNaxCuO2Cl2 (2007)
  • Author(s): T. Hanaguri, Y. Kohsaka, J.C. Davis, C. Lupien, I. Yamada, M. Azuma, M. Takano, K. Ohishi, M. Ono, H
  • Journal Title: Takagi, Nat. Phys Vol.3 Pages: 865-871
  • Peer Reviewed
• [Journal Article] Potential Imaging in Quantum Hall Device by Optical Fiber Based Pockels Measurement (2007)
  • Author(s): M. Dohi, R. Yonamine, K. Oto, K. Muro
  • Journal Title: Int. J. Mod. Phys. B Vol.21 Pages: 1414-1418
  • Peer Reviewed
• [Journal Article] Scanning Tunneling Microscopy / Spectroscopy on Superconducting Diamond Films (2007)
  • Author(s): T. Nishizaki, Y. Takano, M. Nagao, T. Takenouchi, H. Kawarada, N. Kobayashi
  • Journal Title: New Diamond Front. Carbon Technol Vol.17 Pages: 21-31
  • Peer Reviewed
• [Journal Article] Local Tunneling Spectroscopy across a Metamagnetic Critical Point in the Bilayer Ruthenate Sr3Ru2O7 (2007)
  • Author(s): K. Iwaya, S. Satow, T. Hanaguri, N. Shannon, Y. Yoshida, S.I. Ikeda, J.P. He, Y. Kaneko, Y. Tokura, T. Yamada, H. Takagi
  • Journal Title: Phys. Rev. Lett Vol.99 Pages: 057208(1-4)
  • Peer Reviewed
• [Journal Article] Ubiquitous V-Shape Density of States in a Mixed State of Clean Limit Type II Superconductors (2006)
  • Author(s): N. Nakai, P. Miranovic, M. Ichioka, H.F. Hess, K. Uchiyama, H. Nishimori, S. Kaneko, N. Nishida, K. Machida
  • Journal Title: Phys. Rev. Lett Vol.97 Pages: 147001,1-4
  • Peer Reviewed
• [Journal Article] Scanning Tunneling Microscopy and Spectroscopy Studies of Superconduc- ting Boron-doped Diamond Films (2006)
  • Author(s): T. Nishizaki, Y. Takano, M. Nagao, T. Takenouchi, H. Kawarada, N. Kobayashi
  • Journal Title: Sci. Technol. Adv. Mater Vol.7 Pages: S22-S26
  • Peer Reviewed
• [Journal Article] Electronic Structure of Vortex in the FFLO Superconducting State (2006)
  • Author(s): M. Ichioka, H. Adachi, T. Mizushima, K. Machida
  • Journal Title: AIP Conference Proceedings 850 Pages: 725-728
  • Peer Reviewed
• [Journal Article] Development of high-field STM and its application to the study on magnetically- tuned criticality in Sr3Ru2O7 (2006)
  • Author(s): T Hanaguri
  • Journal Title: J. Phys: Conf. Ser 51 Pages: 514-52
  • Peer Reviewed
• [Journal Article] Topological Structure of a Vortex in the Fulde-Ferrell-Larkin-Ovchinnikov State (2005)
  • Author(s): T. Mizushima, K. Machida, M. Ichioka
  • Journal Title: Phys. Rev. Lett Vol.95 Pages: 117003(1-4)
  • Peer Reviewed
• [Presentation] 分光イメージングSTMで見た鉄系超伝導体のギャップ対称性 (2010)
  • Author(s): 花栗哲郎
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学, 岡山市
  • Year and Date: 20100320-20100323
• [Presentation] M/STSによる非超伝導過剰ドープPb置換Bi2201の局所電子状態観察 (2010)
  • Author(s): 岡本大地, 工藤一貴, 西嵜照和, 三好良幸, 小林典男
  • Organizer: 貴, 西嵜照和, 三好良幸, 小林典男、日本物理学会第65回年次大会
  • Place of Presentation: 岡山大学, 岡山市
  • Year and Date: 20100320-20100323
• [Presentation] 走査型Kerr顕微鏡によるGaAs量子井戸中のスピン偏極量子ホール電流の可視化 (2009)
  • Author(s): 音賢一
  • Organizer: 第14回半導体スピン工学の基礎と応用PASPS-14半導体スピントロニクスの展開
  • Place of Presentation: 慶應義塾大学日吉キャンパス, 横浜市
  • Year and Date: 20091221-20091222
• [Presentation] Relationship between the Vortex 'Checkerboard' and the Quasi-Particle Interference in Bi2Sr2CaCu2Oy (2009)
  • Author(s): T. Hanaguri
  • Organizer: he 12th International Workshop on Vortex Matter in Superconductors
  • Place of Presentation: Yamanashi, Japan
  • Year and Date: 20090912-20090916
• [Presentation] Phase-Sensitive Quasi-Particle Inter- ference Effects in High-Tc Supercon- ductors (2009)
  • Author(s): T. Hanaguri
  • Organizer: 9th International Conference on Materials and Mechanisms of Superconductivity (M2S-IX)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20090907-20090912
• [Presentation] Magnetic-Field Effects on the Quasi-Particle Interference in Cuprates (2009)
  • Author(s): T. Hanaguri
  • Organizer: The 2009 Gordon Research Conference on Superconductivity
  • Place of Presentation: Hong Kong, China
  • Year and Date: 20090607-20060612
• [Presentation] 周期的微細構造を導入したBi2Sr2CaCu2- O8+yの磁気光学イメージング (2009)
  • Author(s): 為ヶ井強, 富永貴亮, 仲島康行, 大井修一, 平田和人
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学, 豊島区
  • Year and Date: 20090327-20090330
• [Presentation] 電子スピン分極イメージングによる量子ホールデバイス中の電流分布測定 (2009)
  • Author(s): 山田哲也, 稲葉龍, 最首祐樹, 松田貴治, 音賢一, 室清文, 平山祥郎, 熊田倫雄, 山口浩司
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学, 豊島区
  • Year and Date: 20090327-20090330
• [Presentation] Comprehensive Characterization of Super conductivity in Co-doped BaFe2As2 (2009)
  • Author(s): T. Tamegai, Y. Nakajima, T. Taen
  • Organizer: APS March Meeting
  • Place of Presentation: Pittsburgh, USA
  • Year and Date: 20090316-20090320
• [Presentation] Quasi-particle Interference and Vortex "Checkerboard" in Bi2Sr2CaCu2Oy (2009)
  • Author(s): T. Hanaguri, Y. Kohsaka, T. Tamegai, H. Takagi
  • Organizer: APS March Meeting
  • Place of Presentation: Pittsburgh, USA
  • Year and Date: 20090316-20090320
• [Presentation] PrFeAsO0. 7のSTM/STS (2009)
  • Author(s): 花栗哲郎
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学, 豊島区
  • Year and Date: 2009-03-30
• [Presentation] 鉄系超伝導体の磁気特性の特徴 (2009)
  • Author(s): 為ヶ井強, 仲島康行, 土屋雄司, 田縁俊光
  • Organizer: 超伝導科学技術研究会第71回ワークショップ「鉄系高温超伝導誕生から1年、新超伝導物質の可能性を探る」
  • Place of Presentation: 東京大学, 文京区
  • Year and Date: 2009-03-11
• [Presentation] 磁束状態の中性子散乱強度と常磁性効果 (2008)
  • Author(s): 市岡優典, 鈴木健太, 町田一成
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学, 盛岡市
  • Year and Date: 20080920-20080923
• [Presentation] Singular and Non-singular Vortices and Their Excitation Spectra of Superfluid 3He-A Phase in Restricted Geometries (2008)
  • Author(s): K. Machida, Y. Tsutsumi, T. Kawakami, T. Mizushima, M. Ichioka, M. Takahashi
  • Organizer: 25th International Conference on Low Temperature Physics (LT25)
  • Place of Presentation: Amsterdam, Netherlands
  • Year and Date: 20080806-20080813
• [Presentation] Development of High-Field STM for 18 T Cryocooled Superconducting Magnet (2008)
  • Author(s): T. Nishizaki, N. Kobayashi
  • Organizer: 25th Inter- national Conference on Low Temperature Physics (LT25)
  • Place of Presentation: Amsterdam, Netherlands
  • Year and Date: 20080806-20080813
• [Presentation] Flux Line Lattice Form Factor and Paramagnetic Effects in Type II Superconductors (2008)
  • Author(s): M. Ichioka, K. Machida
  • Organizer: 25th International Conference on Low Temperature Physics (LT25)
  • Place of Presentation: Amsterdam, Netherlands
  • Year and Date: 20080806-20080813
• [Presentation] Optical Imaging of Quantum Hall Current in GaAs/AlGaAs Two Dimensional Electron System (2008)
  • Author(s): K. Oto, R. Inaba, T. Yamada, T. Yamazaki, K. Muro
  • Organizer: 29th Int. Conf. on the Physics of Semiconductors (ICPS 2008)
  • Place of Presentation: Rio de Janeiro, Brazil
  • Year and Date: 20080727-20080801
• [Presentation] Superconducting Gap and Coherence Effect of a High-Tc Cuprate Ca2-xNaxCuO2Cl2 Probed by Quasi-particle Interference (2008)
  • Author(s): T. Hanaguri
  • Organizer: The Inter- national Conference on Quantum Phenomena in Complex Matter of the series on Stripes and High Tc Superconductivity
  • Place of Presentation: Erice, Italy
  • Year and Date: 20080726-20080801
• [Presentation] Surface Structure and Supercon- ducting Energy Gap of Boron Doped Diamond Films Probed by STM/STS (2008)
  • Author(s): T. Nishizaki, Y. Takano, M. Nagao, T. Takenouchi, H. Kawarada, N. Kobayashi
  • Organizer: International Workshop on Superconductivity in Diamond and Related Materials 2008 (IWSDRM 2008)
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 20080707-20080709
• [Presentation] Visualization of Vortices in Anisotropic and Nanostructured Superconductors (2008)
  • Author(s): T. Tamegai, Y. Tsuchiya, H. Chiku, Y. Nakajima
  • Organizer: ESF-NES Workshop "Probing Superconductivity at the Nanoscale
  • Place of Presentation: Alicante, Spain
  • Year and Date: 20080604-20080607
• [Presentation] Quasi-particle Interference and Co- herence Factors in Ca2-xNaxCuO2Cl2 (2008)
  • Author(s): T. Hanaguri
  • Organizer: ESF- NES Workshop "Probing Superconductivity at the Nanoscale
  • Place of Presentation: Alicante, Spain
  • Year and Date: 20080604-20080607
• [Presentation] Quasiparticle Interference and Coherence Effects of High-Tc Superconductor: STM/STS as a Reciprocal- space Probe (2008)
  • Author(s): 花栗哲郎
  • Organizer: 日本物理学会2008秋季大会
  • Place of Presentation: 岩手大学, 盛岡市
  • Year and Date: 2008-09-20
• [Presentation] Superconducting and Magnetic Properties of Superconductor/Ferromagnet Hybrids (2008)
  • Author(s): T. Tamegai, Y. Nakao, Y. Tsuchiya, Y. Nakajima
  • Organizer: Nanostructured Supercon- ductors: from Fundamentals to Applications
  • Place of Presentation: Freudenstadt, Germany
  • Year and Date: 2008-09-14
• [Presentation] Quasi-Particle Interference, Super- con ducting Gap and Coherence Effect in a High-Tc Superconductor Ca2-xNaxCuO2Cl2 (2007)
  • Author(s): T. Hanaguri
  • Organizer: 8th Korea-Japan-Taiwan Symposium on Strongly Correlated Electron Systems
  • Place of Presentation: Incheon, Korea
  • Year and Date: 20071115-20071117
• [Presentation] Phase Diagram of Interlayer Josephson Vortices in Underdoped YBa2Cu3Oy (2007)
  • Author(s): T. Nishizaki, Y. Takahashi, N. Kobayashi
  • Organizer: Joint ESF and JSPS Conference on Vortex Matter in Nanostructured Superconductors (Vortex V)
  • Place of Presentation: Rhodes, Greece
  • Year and Date: 20070908-20070914
• [Presentation] d-wave Quasi-particle Interference and Fermi Arc in Ca2-xNaxCuO2Cl2 (2007)
  • Author(s): T. Hanaguri
  • Organizer: The 8th International Conference on Spectroscopies in Novel Superconductors
  • Place of Presentation: Sendai, Japan
  • Year and Date: 20070820-20080824
• [Presentation] Superconducting Gap in a Cuprate Studied by the Quasi-particle Interference Effect (2007)
  • Author(s): T. Hanaguri
  • Organizer: NSFC-JSPS Joint Conference on Novel Quantum Phenomena in Strongly Correlated Electronic Systems
  • Place of Presentation: Beijing, China
  • Year and Date: 20070625-20070629
• [Presentation] STM Studies of Electronic Order in the Underdoped Surface of YBa2Cu3Oy (2007)
  • Author(s): N. Kobayashi, T. Nishizaki, M. Maki
  • Organizer: Sixth International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials (New3SC-6)
  • Place of Presentation: Sydney, Australia
  • Year and Date: 20070109-20070111
• [Presentation] In-Plane Anisotropy of Vortex Motion and Electronic State of the CuO Chain in YBa2Cu3Oy (2006)
  • Author(s): T. Nishizaki, H. Fujita, N. Kobayashi
  • Organizer: nternational Workshop on Mesoscopic Superconductivity and Magnetism (MesoSuperMag 2006)
  • Place of Presentation: Chicago, USA
  • Year and Date: 20060828-20080901
• [Presentation] Vortex Structure and Phase Diagram in untwinned YBa2Cu3Oy Single Crystals (2006)
  • Author(s): T. Nishizaki, K. Shibata, N. Kobayashi
  • Organizer: The 8th International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors (M2S-HTSC-VIII)
  • Place of Presentation: Dresden, Germany
  • Year and Date: 20060709-20070714
• [Presentation] Effect of the CuO Chain on Anisotropic Vortex Motion in YBa2Cu3Oy Single Crystals (2006)
  • Author(s): T. Nishizaki
  • Organizer: The 11th International Workshop on Vortex Matter
  • Place of Presentation: Polish Academy of Science, Wroclaw, Poland
  • Year and Date: 20060703-20060708
• [Presentation] ボロンドープ超伝導ダイヤモンドのトンネル顕微分光 (2006)
  • Author(s): 西嵜照和, 高野義彦, 長尾雅則, 竹之内智大, 川原田洋, 小林典男
  • Organizer: 第3回ボロンドープ超伝導ダイアモンド研究会
  • Place of Presentation: 電気通信大学, 調布市
  • Year and Date: 2006-07-29
• [Presentation] STM/STS Studies on Vortex and Electronic State in YBa2Cu3Oy (2005)
  • Author(s): T. Nishizaki, K. Shibata, M. Maki, N. Kobayashi
  • Organizer: Forth International Conference on Vortex Matter in Nanostructured Superconductors (VORTEX IV)
  • Place of Presentation: Crete, Greece
  • Year and Date: 20050903-20050909
• [Presentation] Electronic Aspects of Vortices in Type II Superconductors (2005)
  • Author(s): K. Machida, H. Adachi, M. Ichioka, P. Miranovic, N. Nakai
  • Organizer: International Conference Vortex IV
  • Place of Presentation: Crete, Greece
  • Year and Date: 20050902-20090911
• [Book] ボルテックスマタ-の物理, 超伝導ハンドブック(福山秀敏, 秋光純編) (2009)
  • Author(s): 胡暁, 西嵜照和, 小林典男
  • Total Pages: 255-265
  • Publisher: 朝倉書店
• [Book] Vortex Matter Physics in YBa2Cu3Oy Single Crystals Studies of High Temperature Super-conductors (2005)
  • Author(s): T. Nishizaki, N. Kobayashi
  • Total Pages: 1-47
  • Publisher: Nova Science Publishers
• [Remarks] ホームページ等
  • URL: http://spin100.imr.tohoku.ac.jp
• [Remarks] 受賞
• [Remarks] 銅酸化物系高温超伝導体における電子秩序の解明、花栗哲郎、第13回超伝導科学技術賞、2009. 4. 15
• [Remarks] 超伝導体単結晶における磁束線状態の研究、為ヶ井強、第12回超伝導科学技術賞、2008. 4. 15
• [Remarks] 強い電子相関を持つ銅系酸化物の電子・スピン状態の研究、第47回原田研究奨励賞、工藤一貴(研究協力者)、2007. 7. 9
• [Remarks] 新聞報道等
• [Remarks] 「超電導の理論裏付け:理研など電子構造を詳細分析」、日経産業新聞・日刊工業新聞、2010. 4. 23
• [Remarks] 「東北大など新顕微鏡:世界最強磁場でナノサイズ観察」、日経産業新聞、2010. 3. 16
• [Remarks] 「クーパー対の個性」、科学新聞、2009. 2. 6
• [Remarks] 「高温超伝導状態での電子波」、科学新聞、2007. 11. 16