List of publications

60. “Suppression of exciton-exciton annihilation in tungsten disulfide monolayers encapsulated by hexagonal boron nitrides”
  Yusuke Hoshi, Takashi Kuroda, Mitsuhiro Okada, Rai Moriya, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Ryo Kitaura, and Tomoki Machida
  Physical Review B 95, 241403(R) (2017)

59. “Optical coupling between atomically thin black phosphorus and a two dimensional photonic crystal nanocavity”
  Yasutomo Ota, Rai Moriya, Naoto Yabuki, Miho Arai, Masahiro Kakuda, Satoshi Iwamoto, Tomoki Machida, and Yasuhiko Arakawa
  Applied Physics Letters 110, 223105 (2017)

58. “N- and p-type carrier injections into WSe2 with van der Waals contacts of two-dimensional materials”
  Yohta Sata, Rai Moriya, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, and Tomoki Machida
  Japanese Journal of Applied Physics 56, 04CK09 (2017)

57. “Dirac fermion reflector by ballistic graphene sawtooth-shaped npn junctions”
  Sei Morikawa, Quentin Wilmart, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Bernard Plaçais, and Tomoki Machida
  Semiconductor Science and Technology 32, 045010 (2017)

56. “Comparison of magnetoresistances of triangular and rectangular ballistic graphene npn junctions”
  Sei Morikawa, Satroru Masubuchi, Kenji Watanabe, Takashi Taniguchi, and Tomoki Machida
  Japanese Journal of Applied Physics 55, 100305 (2016)

55. “Spin injection into multilayer graphene from highly spin-polarized Co2FeSi Heusler alloy”
  Takehiro Yamaguchi, Rai Moriya, Soichiro Oki, Shinya Yamada, Satoru Masubuchi, Kohei Hamaya, and Tomoki Machida
  Applid Physics Express 9, 063006 (2016)

54. “Supercurrent in van der Waals Josephson junction”
  Naoto Yabuki, Rai Moriya, Miho Arai, Yohta Sata, Sei Morikawa, Satoru Masubuchi, and Tomoki Machida
  Nature Communications 7, 10616 (2016)

53. “Imaging ballistic carrier trajectories in graphene using scanning gate microscopy”
  Sei Morikawa, Ziwei Dou, Shu-Wei Wang, Charles G. Smith, Kenji Watanabe, Takashi Taniguchi, Satoru Masubuchi, Tomoki Machida, and Malcolm R. Connolly
  Applied Physics Letters 107, 243102 (2015)

52. “Edge-Channel Transport of Dirac Fermions in Graphene Quantum Hall Junctions”
  Tomoki Machida, Sei Morikawa, Satoru Masubuchi, Rai Moriya, Miho Arai, Kenji Watanabe, Takashi Taniguchi
  Journal of the Physical Society of Japan 84, 121007 (2015)

51. “Vertical field effect transistor based on graphene/transition metal dichalcogenide van der Waals heterostructure”
  Rai Moriya, Takehiro Yamaguchi, Yoshihisa Inoue, Yohta Sata, Sei Morikawa, Satoru Masubuchi and Tomoki Machida
  ECS Trans. 69, 357 (2015)

50. “Construction of van der Waals magnetic tunnel junction using ferromagnetic layered dichalcogenide”
  Miho Arai, Rai Moriya, Naoto Yabuki, Satoru Masubuchi, Keiji Ueno and Tomoki Machida
  Applied Physics Letters 107, 103107 (2015)

49. “Electric field modulation of Schottky barrier height in graphene/MoSe2 van der Waals heterointerface”
  Yohta Sata, Rai Moriya, Sei Morikawa, Naoto Yabuki, Satoru Masubuchi, and Tomoki Machida
  Applied Physics Letters 107, 023109 (2015)

48. “Influence of the density of states of graphene on the transport properties of graphene/MoS2/metal vertical field-effect transistors”
   Rai Moriya, Takehiro Yamaguchi, Yoshihisa Inoue, Yohta Sata, Sei Morikawa, Satoru Masubuchi and Tomoki Machida
  Applid Physics Letters 106, 233103 (2015)

47. “Edge-channel interferometer at the graphene quantum Hall pn junction”
   Sei Morikawa, Satoru Masubuchi, Rai Moriya, Kenji Watanabe, Takashi Taniguchi, and Tomoki Machida
  Applied Physics Letters 106, 183101 (2015)

46. “Fabrication of 10-nm-scale nanoconstrictions in graphene using atomic force microscopy-based local anodic oxidation lithography”
   Miho Arai, Satoru Masubuchi, Kenji Nose, Yoshitaka Mitsuda and Tomoki Machida
  Japanese Journal of Applied Physics 54, 04DJ06 (2015)

45. “Modulation of Schottky barrier height in graphene/MoS2/metal vertical heterostructure with large current ON-OFF ratio”
  Yohta Sata, Rai Moriya, Takehiro Yamaguchi, Yoshihisa Inoue, Sei Morikawa, Naoto Yabuki, Satoru Masubuchi, and Tomoki Machida
  Japanese Journal of Applied Physics 54, 04DJ04 (2015)

44. “Tunneling transport in a few monolayer-thick WS2/graphene heterojunction”
  Takehiro Yamaguchi, Rai Moriya, Yoshihisa Inoue, Sei Morikawa, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, and Tomoki Machida
  Applied Physics Letters 105, 223109 (2014)

43. “Large current modulation in exfoliated-graphene/MoS2/metal vertical heterostructures”
  R. Moriya, T. Yamaguchi, Y. Inoue, S. Morikawa, Y. Sata, S. Masubuchi, and T. Machida
  Applied Physics Letters 105, 083119 (2014)

42. “Cubic Rashba Spin-Orbit Interaction of a Two-Dimensional Hole Gas in a Strained-Ge/SiGe Quantum Well”
  R. Moriya, K. Sawano, Y. Hoshi, S. Masubuchi, Y. Shiraki, A. Wild, C. Neumann, G. Abstreiter, D. Bougeard, T. Koga, and T. Machida
  Physical Review Letters 113, 086601 (2014)

41. “Cross-sectional transmission electron microscopy analysis of a single self-assembled quantum dot single electron transistor fabricated by atomic force microscope local oxidation”
  R. Moriya, E. Ikenaga, K. Shibata, K. Hirakawa, S. Masubuchi, and T. Machida
  Japanese Journal of Applied Physics 53, 045202 (2014)

40. “Mid-infrared photoresponse of graphene nanoribbon bolometer”
  M. Arai, M. Onuki, S. Masubuchi, R. Moriya and T. Machida
  Japanese Journal of Applied Physics 53, 035101 (2014)

39. “Fabrication and Characterization of High-Mobility Graphene p-n-p Junctions”
  S. Masubuchi, S. Morikawa, M. Onuki, K. Iguchi, K. Watanabe, T. Taniguchi, and T. Machida
  Japanese Journal of Applied Physics 52, 110105 (2013)

38. “Photovoltaic infrared photoresponse of the high-mobility graphene quantum Hall system due to cyclotron resonance”
  S. Masubuchi, M. Onuki, M. Arai, T. Yamaguchi, K. Watanabe, T. Taniguchi, and T. Machida
    Phys. Rev. B 88, 121402(R) (2013)

37. “Electrical spin injection into graphene through monolayer hexagonal boron nitride”
  Takehiro Yamaguchi, Yoshihisa Inoue, Satoru Masubuchi, Sei Morikawa, Masahiro Onuki, Kenji Watanabe,   Takashi Taniguchi, Rai Moriya, and Tomoki Machida
  Applid Physics Express 6, 073001 (2013)

36. “Cross-sectional Transmission Electron Microscopy Analysis of Nanogap Electrode”
  Rai Moriya, Eriko Ikenaga, Satoru Masubuchi, Tomoki Machida
  Jpn. J. Appl. Phys. 52, 055201 (2013)

35. “Spin relaxation in weak localization regime in multilayer graphene spin valves”
  Takehiro Yamaguchi, Rai Moriya, Satoru Masubuchi, Kazuyuki Iguchi,and Tomoki Machida
  Jpn. J. Appl. Phys. 52, 040205 (2013)

34. “Boundary Scattering in Ballistic Graphene”
  S. Masubuchi, K. Iguchi, T. Yamaguchi, M. Onuki, M. Arai, K. Watanabe, T. Taniguchi, and T. Machida
  Phys. Rev. Lett. 109, 036601 (2012)

33. “Tunnel spin injection into graphene using Al2O3 barrier grown by atomic layer deposition on functionalized graphene surface"
  T. Yamaguchi, S. Masubuchi, K. Iguchi, R. Moriya, and T. Machida
  J. Magn. Magn. Mater. 324, 849-852 (2011)

32. “Single-electron switching effect in graphene parallel-coupled double quantum dots”
  M. Arai, S. Masubuchi, and T. Machida
  J. Phys.: Conf. Ser. 334, 012041 (2011)

31. “Observation of quantum Hall effect in mono- and bi-layer graphene using pulse magnet”
  S. Masubuchi, K. Suga, K. Kindo, S. Takeyama, and T. Machida
  J. Phys.: Conf. Ser. 334, 012037 (2011)

30. “Atomic force microscopy based tunable local anodic oxidation of graphene”
  S. Masubuchi, M. Arai, and T. Machida
  Nano Lett. 11, 4542-4546 (2011)

29. “Spatial gradient of dynamic nuclear spin polarization induced by breakdown of the quantum Hall effect”
  M. Kawamura, K. Kono, Y. Hashimoto, S. Katsumoto, and T. Machida
  Phys. Rev. B 83, 041305(R)-1-4 (2011)

28. “Fabrication of single-electron transistor composed of a self-assembled quantum dot and nanogap electrode by atomic force microscope local oxidation”
  R. Moriya, H. Kobayashi, K. Shibata, S. Masubuchi, K. Hirakawa, S. Ishida, Y. Arakawa, and T. Machida
  Appl. Phys. Express 3, 035001-1-3 (2010)

27. “Scanning microscopy of nuclear spin polarization via quantum Hall edge channels”
  T. Nakajima, Y. Kobayashi, S. Komiyama, M. Tsuboi, and T. Machida
  Phys. Rev. B 81, 085322-1-7 (2010)

26. “Strain-induced enhancement of electric quadrupole splitting in resistively detected nuclear magnetic resonance spectrum in quantum Hall systems”
  M. Kawamura, T. Yamashita, H. Takahashi, S. Masubuchi, Y. Hashimoto, S. Katsumoto, and
  T. Machida
  Appl. Phys. Lett. 96, 032102-1-3 (2010)

25. “Spin-related current suppression in a semiconductor-quantum-dot spin-diode structure”
  K. Hamaya, M. Kitabatake, K. Shibata, M. Jung, S. Ishida, T. Taniyama, K Hirakawa,Y. Arakawa,
  and T. Machida
  Phys. Rev. Lett. 102, 236806-1-4 (2009)

24. “Dynamic nuclear polarization induced by breakdown of fractional quantum Hall effect”
  M. Kawamura, M. Ono, Y. Hashimoto, S. Katsumoto, K. Hamaya, and T. Machida
  Phys. Rev. B 79, 193304-1-4 (2009)

23. “Coherent manipulation of nuclear spins in the breakdown regime of integer quantum Hall states”
  M Kawamura, H Takahashi, Y Hashimoto, S Katsumoto and T Machida
  Journal of Physcs: Conference Series,150, 02203-1-4 (2009)

22. “Fabrication of graphene nanoribbon by local anodic oxidation lithography using atomic force microscope”
  S. Masubuchi, M. Ono, K. Yoshida, K. Hirakawa, and T. Machida
  Appl. Phys. Lett. 94, 082107-1-3 (2009)

21. “Tunneling magnetoresistance effect in a few-electron quantum-dot spin valve”
  K. Hamaya, M. Kitabatake, K. Shibata, M. Jung, M. Kawamura, S. Ishida, T. Taniyama, K. Hirakawa,
  Y. Arakawa, and T. Machida
   Appl. Phys. Lett. 93, 222107-1-3 (2008)

20. “Observation of Half-Integer quantum Hall effect in single-layer graphene using pulse magnet ”
  S. Masubuchi, K. Suga, M. Ono, K. Kindo, S. Takeyama, and T. Machida
  J. Phys. Soc. Jpn. 77, 113707 (2008)

19. “Spin transport in a single InAs quantum dot attached to ferromagnetic electrodes”
  T. Machida and K. Hamaya
  Extended Abstracts of the 2008 International Conference on Solid State Device and Materials
  (SSDM2008) pp. 1066-1067 (2008)

18. “Valley-splitting edge-channel transport in a Si/SiGe quantum Hall system”
  K. Sugihara, K. Hamaya, M. Kawamura, K. Sawano, Y. Shiraki, and T. Machida
  Physica E. 40, 1523-1525 (2008)

17. “Dynamic nuclear polarization and Knigaht shift measurements in a breakdown regime of integer quantum Hall effect”
  M. Kawamura, H. Takahashi, S. Masubuchi, Y. Hashimoto, S. Katsumoto, K. Hamaya, and T. Machida
  Physica. E. 40, 1389-1391 (2008)

16. “Oscillatory changes in the tunneling magnetoresistance effect in semiconductor quantum-dot spin valves”
  K. Hamaya, M. Kitabatake, K. Shibata, M. Jung, M. Kawamura, S. Ishida, T. Taniyama, K. Hirakawa,
  Y. Arakawa, and T. Machida
  Phys. Rev. B.77, 081302-1-4 (2008)

15. “Dynamic nuclear polarization in a quantum Hall corbino disk”
  M. Kawamura, H. Takahashi, S. Masubuchi, Y. Hashimoto, S. Katsumoto, K. Hamaya, and T. Machida
  J. Phys. Soc. Jpn 77 023710-1-4 (2007)

14. “Kondo effect in semiconductor quantum dot coupled to ferromagnetic electrodes"
  K. Hamaya, M. Kitabatake, K. Shibata, M. Jung, M. Kawamura, K. Hirakawa, T. Machida, T. Taniyama,
  S .Ishida and Y. Arakawa
  Appl. Phys. Lett. 91. 232105-1-3 (2007)

13. “Electrical coherent control of nuclear spins in a breakdown regime of quantum Hall effect"
  H. Takahashi, M. Kawamura, S. Masubuchi, K. Hamaya, T. Machida, Y. Hashimoto, S. Katsumoto
  Appl. Phys. Lett. 91, 092120-1-3 (2007)

12. “Electric-field control of tunneling magnetoresistance effect in a Ni/InAs/Ni quantum-dot spin valve"
  K. Hamaya, M. Kitabatake, K. Shibata, M. Jung, M. Kawamura, K. Hirakawa, T. Machida, T. Taniyama,
  S. Ishida, and Y. Arakawa   
  Appl. Phys. Lett. 91, 022107-1-3 (2007)

11. “Spin transport through a single self-assembled InAs quantunm dot with ferromagnetic leads"
  K. Hamaya, S. Masubuchi, M. Kawamura, T. Machida, M. Jung, K. Shibata, K. Hirakawa, T. Taniyama,
  S. Ishida, and Y.Arakawa
  Appl. Phys. Lett. 90, 053108-1-3 (2007)

10. “Spin-dependent nonlocal resistance in Si/SiGe quantum Hall conductor"
  K. Hamaya, K. Sugihara, H. Takahashi, S. Masubuchi, M. Kawamura,T. Machida, K. Sawano, and
  Y. Shiraki
  Phys. Rev. B 75, 033307-1-4 (2007)

9. “Electrical polarization of nuclear spins in a breakdown regime of quantum Hall effect”
  M. Kawamura, H. Takahashi, K. Sugihara, S. Masubuchi, K. Hamaya, and T. Machida
  Appl. Phys. Lett. 90, 022102-1-3 (2007)

8. “Electrical polarization of nuclear spins in a breakdown regime of quantum Hall effect”
  M. Kawamura, H. Takahashi, K. Sugihara, S. Masubuchi, K. Hamaya, and T. Machida
  Appl. Phys. Lett. 90, 022102-1-3 (2007)

7. “Local detection of Knight shift around quantum-Hall edge channels using resistively- detected NMR”
  S. Masubuchi, K. Hamaya, and T. Machida
  Phy. Stat. Sol.(C)3, 4268-4271 (2006)

6. “Estimation of dynamic nuclear polarization in quantum-Hall devices using tilted magnetic fields”
  S. Masubuchi, K. Hamaya, and T. Machida
  Phy. Stat. Sol.(C)3, 4284-4287 (2006)

5. “Spin dependence of edge-channel transport in silicon-based quantum Hall system”
  K. Hamaya, S. Masubuchi, K. Sawano, Y, Shiraki, and T. Machida
  Phy. Stat. Sol.(C)3, 4251-4254 (2006)

4. “Gate-controlled nuclear magnetic resonance in an AlGaAs/GaAs quantum Hall device”
  S. Masubuchi, K. Hamaya, and T. Machida
  Appl. Phys Lett. 89, 202111 (2006)

3. “Knight shift detection using gate-induced decoupling of the hyperfine interaction in quantum Hall edge channels" 
  S. Masubuchi, K. Hamaya, and T. Machida
  Appl. Phys Lett. 89, 062108-1-3 (2006)

2. “Estimation of electrically-pumped dynamic nuclear polarization in quantum Hall device using titled magnetic fields "
  S. Masubuchi, K. Hamaya, and T. Machida
  Jpn. J. Appl. Phys. 45, L522-L524 (2006)

1.“Spin-dependent edge-channel transport in a Si/SiGe quantum Hall system”
  K. Hamaya, S. Masubuchi, K. Hirakawa, S. Ishida, Y. Arakawa, K. Sawano, Y. Shiraki, and T. Machida
  Phys. Rev. B 73, 121304R (2006)