原研究室の成果

論文（査読有り）

• "Controllable defect-induced room temperature ferromagnetism in single-layered titanium oxide nanosheets",
  R. Kurogi, T. Sueyoshi, A. Funatsu, T. Yamauchi, Y. Hashimoto, A. Endo, T. Ichii, K. Hara, M. Sawada, M. Mizumaki and M. Hara, Nanotechnology 36, 255702 (2025).
  
  
• "Lattice-guided growth of dense arrays of aligned transition metal dichalcogenide nanoribbons with high catalytic reactivity",
  Z. Ma, P. Solis-Fernandez, K. Hirata, Y-C. Lin, K. Shinokita, M. Maruyama, K. Honda, T. Kato, A. Uchida, H. Ogura, T. Otsuka, M. Hara, K. Matsuda, K. Suenaga, S. Okada, T. Kato, Y. Takahashi and H. Ago, Sci. Adv. 11, eadr8046 (2025).
  
  
• "In situ thermal noise measurements under nanoindentation of suspended graphene",
  R. Takehara, Y. Uto, T. Matsui and M. Hara, Nanotechnology 34, 475704 (2023).
  
  
• "Nanoscale fabrication of graphene by hydrogen-plasma etching",
  T. Yokosawa, M. Kamada, T. Ochi, Y. Koga, R. Takehara, M. Hara and T. Matsui, e-J. Surf. Sci. Nanotechnol. 20, 139 (2022).
  
  
• "Sensitive detection of water/oxygen molecule adsorption and reaction on a titanium oxide nanosheet with a graphene field effect transistor",
  Y. Yoshida, T. Imafuku, D. Inoue, S. Uechi, D. Shite, Y. Katsuki, A. Funatsu, F. Shimojo and M. Hara, Nano Ex. 1, 030022 (2020).
  
  
• "Ferromagnetic metal conversion directly from two-dimensional nickel hydroxide",
  Y. Naruo, S. Uechi, M. Sawada, A. Funatsu, F. Shimojo, S. Ida and M. Hara, Nanotechnology 31, 435602 (2020).
  
  
• "Tolerance against conducting filament formation in nanosheet-derived titania thin films",
  M. Sato, M. Hara, A. Funatsu and R. Nouchi, Nano Ex. 1, 010034 (2020).
  
  
• "Electronic Structure of Titania Nanosheets With Vacancies Based on Nonadiabatic Quantum Molecular Dynamics Simulations",
  Y. Uchida, M. Hara, A. Funatsu and F. Shimojo, Phys. Status Solidi B 1700689 (2018).
  
  
• "Magnetic proximity effects between single-layer Mn-doped titania nanosheets and Fe overlayers",
  N. Saitou, Y. Hirano, M. Sawada, H. Namatame, M. Taniguchi, T. Taniguchi, Y. Matsumoto and M. Hara, J. Phys. Soc. Jpn. 85, 035002 (2016).
  
  
• "Novel pot-shaped carbon nanomaterial synthesized in a submarine-style substrate heating CVD method",
  H. Yokoi, K. Hatakeyama, T. Taniguchi, M. Koinuma, M. Hara and Y. Matsumoto, J. Mater. Res. 31, 117 (2016).
  
  
• "pH-driven, reversible epoxy ring opening/closing in graphene oxide",
  T. Taniguchi, S. Kurihara, H. Tateishi, K. Hatakeyama, M. Koinuma, H. Yokoi, M. Hara, H. Ishikawa and Y. Matsumoto, Carbon 84, 560 (2015).
  
  
• "Effects of gas molecules on an ultraviolet photodetector with a single-layer titania nanosheet",
  K. Matsuzaki, T. Taniguchi, Y. Matsumoto and M. Hara, Appl. Phys. Lett. 106, 033104 (2015).
  
  
• "Giant humidity dependence of conductivity in a single exfoliated titania nanosheet",
  A. Tanaka, K. Hatakeyama, A. Oku, K. Matsuzaki, N. Saitou, H. Yokoi, T. Taniguchi, Y. Matsumoto and M. Hara, Appl. Phys. Lett. 104, 163016 (2014).
  
  
• "Geometrical optimization of a local ballistic magnetic sensor",
  Y. Kanda, T. Nomura, T. Kimura and M. Hara, Appl. Phys. Lett. 104, 142408 (2014).
  
  
• "Detection of edge magnetic state by a ballistic bend resistance measurement",
  T. Matsunaga, K. Furukawa, Y. Kanda, M. Hara, T. Nomura and T. Kimura, Appl. Phys. Lett. 102, 252405 (2013).
  
  
• "Optimization of magnetic-field response of bend resistance in ballistic two-dimensional electron gas",
  T. Matsunaga, M. Hidegara, K. Furukawa, M. Hara, T. Nomura and T. Kimura, Appl. Phys. Express 5, 073001 (2012).
  
  
• "Nonvolatile multiple-valued memory device using lateral spin valve",
  T. Kimura and M. Hara, Appl. Phys. Lett. 97, 182501 (2010).
  
  
• 理化学研究所における成果（2004〜2008年）
  
  
• 東京大学物性研究所における成果（1999年〜2004年）