原著論文/Original Paper

  • Ryo Tamura, “Tunnel Valley Current Filter in the Partially Overlapped Graphene under the Vertical Electric Field”, J. Phys. Soc. Jpn. 92, 123704 (2023).
  • Ryo Tamura, “Origins of Valley Current Reversal in Partially Overlapped Graphene Layers”, J. Phys. Soc. Jpn. 92, 114706 (2023).
  • Ryo Tamura, “Interlayer Conductance in the Armchair Nanotube – Zigzag Graphene Ribbon Parallel Contact: Theoretical Proposal of Detection of Wavefunction Growing from the Edge to the Center in the Graphene Ribbon”, J. Phys. Soc. Jpn. 92, 113701 (2023).
  • Ryo Tamura, “Valley Current Filtering and Reversal by Parallel Side Contacted Armchair Nanotubes”, J. Phys. Soc. Jpn. 90, 114701 (2021)
  • Ryo Tamura, “Perturbation calculations on interlayer transmission rates from symmetric
    to antisymmetric channels in parallel armchair nanotube junctions”, Phys. Rev. B 99, 155407 (2019).
  • Ryo Tamura, “Relation between dispersion lines and conductance of telescoped armchair
    double-wall nanotubes analyzed using perturbation formulas and first-principles calculations”, Phys. Rev. B 86, 205416 (2012).
  • Ryo Tamura, “Conductance of telescoped double-walled nanotubes from perturbation calculations”, Phys. Rev. B 82, 035415-1 – 035415-10 (2010).
  • Takafumi Matsuda, Marcel Mesko, Tomokazu Ishikawa, Jun Sato, Akihisa Ogino, Ryo, Tamura, and Masaaki Nagatsu”, “Role of Negative Electric Field Biasing on Growth of Vertically Aligned Carbon Nanotubes Using Chemical Vapor Deposition”, JAPANESE JOURNAL OF APPLIED PHYSICS  47, 7436-7439 (2008)
  • Nobuhisa Fujima, Mitsuhiro Asato, Ryo Tamura, and Toshiharu Hoshino, “Ab-initio Data Interatomic Interactions in Zr-rich ZrX(x=Sc-Cu) Alloys and Stability of Icosahedron-Like Zr13 Cun(n=3,4) Clusters”, MATERIALS TRANSACTIONS 48, 1734-1738, (2007)
  • Mitsuhiro Asato, Ryo Tamura, Nobuhisa Fujima, and Toshiharu Hoshino, “Ab-initio data for interatomic interactions in Zr-rich ZrCu alloys and Embedded-atom-method Potentials”, MATERIALS SCIENCE FORUM , 561-565, 1259-1262 (2007)
  • Nobuhisa Fujima, Ryo Tamura,  and Tatsuki Oda , “Structure and Electronic Properties of a Heterojunction between a Single Wall Carbon Nanotube and a TiC Cluster”,  EUROPEAN PHYSICAL JOURNAL D  43, 147-150 (2007)
  • M. Asato,  H. Takahashi, T. Inagaki, N. Fujima, R. Tamura, and T. Hoshino, “Cluster Expansion Approach for Relative Stability among Different Atomic Structures in Alloys: an Approach from a Dilute Limit”, MATERIALS TRANSACTIONS, 48, 1711-1716 (2007)
  • Ryo Tamura, Yoko Sawai, Junji Haruyama, “Suppression of the pseudo anti-symmetry channel in the conductance of telescoped double-wall nanotubes, “Phys. Rev. B, 72, 045413-1 – 045413-10 (2005).
  • Ryo Tamura, Mitsuhiro Ikuta, Toru Hirahara and Masaru Tsukada, “Positive magnetic susceptibility in polygonal nanotube tori”, Phys. Rev. B, 71, 045418-1 – 045418-7 (2005).
  • Ryo Tamura, “Resonant spin current in nanotube double junctions”, Phys. Rev. B 67, 121408-1 – 121408-4 (2003).
  •  Yusuke Kasahara, Ryo Tamura and Masaru Tsukada, “Structure and electronic states of capped carbon nanotubes by a tight binding approach”, Phys. Rev. B, 67,115419-1 – 115419-14 (2003).
  • Ryo Tamura, “Backward diode composed of a metallic and semiconducting nanotube”, Phys. Rev. B,64, 201404-1 – 201404-4 (2001).
  • Ryo Tamura and Masaru Tsukada, “Relation between transmission rates and the wave functions in carbon nanotube junctions” Physical Review B, Vol.  61  pp.8548-8560  (2000).
  • Ryo Tamura and Masaru Tsukada, “Band Structures of Periodic Carbon Nanotube Junctions and Their Symmetries Analyzed by the Effective Mass Approximation.” Journal of Physical Society of Japan, Vol.  68,  pp.910-922  (1999).
  • Ryo Tamura and Masaru Tsukada, “Degeneracy and Repulsion Between the Bands of Periodic Carbon Nanotube Junctions”, Eur. Phys. J. D., Vol. 9, 377-380 (1999)
  • Ryo Tamura and Masaru Tsukada, “Analysis of quantum conductance of carbon nanotube junctions by the effective-mass approximation” Physical Review B, Vol. 58 pp.8120-8124 (1998)
  • Ryo Tamura and Masaru Tsukada,” Conductance of nanotube junctions and  its scaling law”, Z. Phys. D, Vol.  40,  pp.432-435  (1997)
  • Ryo Tamura and Masaru Tsukada,”Conductance of nanotube junctions and its scaling law”, Physical Review B, Vol.  55 pp.4991-4998   (1997)
  • Ryo Tamura and Masaru Tsukada,”Electronic transport in carbon nanotube junctions”, Solid State Commun., Vol.  101,  pp.601-605  (1997)
  • Ryo Tamura, K. Akagi, Masaru Tsukada, Satoshi Itoh, and Sigeo Ihara, “Electronic properties of polygonal defects in graphitic  carbon sheets”, Phys. Rev. B, Vol. 56, pp.1404-1411  (1997)
  • Kazuto Akagi, Ryo Tamura, Masaru Tsukada, Satoshi Itoh, and Sigeo Ihara, “Electronic structures of helically coiled nanotubes:Relation between the phason line and energy band features”, Phys. Rev. B, Vol.  53, pp.2114-2120  (1996)
  • Ryo Tamura and Masaru Tsukada,”Electronic states of the cap structure in the carbon nanotube” Physical Review B, Vol. 52 pp.6015-6026  (1995)
  • K. Akagi, Ryo Tamura, Masaru Tsukada, Satoshi Itoh, and Sigeo Ihara, “Electronic Structure of Helicaly Coiled Cage of Graphitic Carbon”,  Phys. Rev. Lett.,  Vol. 74,  pp.2307-2310  (1995)
  • Ryo Tamura and Masaru Tsukada, “Disclinations of monolayer graphite and their electronic states”, Physical Review B, Vol. 49 pp.7697-770