| Interface roughness scattering in GaAs/AlAs quantum wells H Sakaki, T Noda, K Hirakawa, M Tanaka, T Matsusue Applied physics letters 51 (23), 1934-1936, 1987 | 873 | 1987 |
| Mobility of the two-dimensional electron gas at selectively doped n-type Al x Ga 1− x As/GaAs heterojunctions with controlled electron concentrations K Hirakawa, H Sakaki Physical Review B 33 (12), 8291, 1986 | 430 | 1986 |
| Intrinsic electron accumulation layers on reconstructed clean InAs (100) surfaces M Noguchi, K Hirakawa, T Ikoma Physical review letters 66 (17), 2243, 1991 | 308 | 1991 |
| Bound-to-continuum intersubband photoconductivity of self-assembled InAs quantum dots in modulation-doped heterostructures SW Lee, K Hirakawa, Y Shimada Applied Physics Letters 75 (10), 1428-1430, 1999 | 305 | 1999 |
| Tunneling spectroscopy of Andreev energy levels in a quantum dot coupled to a superconductor RS Deacon, Y Tanaka, A Oiwa, R Sakano, K Yoshida, K Shibata, ... Physical review letters 104 (7), 076805, 2010 | 235 | 2010 |
| Fabrication of graphene nanoribbon by local anodic oxidation lithography using atomic force microscope S Masubuchi, M Ono, K Yoshida, K Hirakawa, T Machida Applied Physics Letters 94 (8), 2009 | 212 | 2009 |
| Energy relaxation of two‐dimensional electrons and the deformation potential constant in selectively doped AlGaAs/GaAs heterojunctions K Hirakawa, H Sakaki Applied physics letters 49 (14), 889-891, 1986 | 207 | 1986 |
| Single-photon detector in the microwave range O Astafiev, S Komiyama, T Kutsuwa, V Antonov, Y Kawaguchi, ... Applied physics letters 80 (22), 4250-4252, 2002 | 149 | 2002 |
| MEMS reconfigurable metamaterial for terahertz switchable filter and modulator Z Han, K Kohno, H Fujita, K Hirakawa, H Toshiyoshi Optics express 22 (18), 21326-21339, 2014 | 147 | 2014 |
| Machine-learning-optimized aperiodic superlattice minimizes coherent phonon heat conduction R Hu, S Iwamoto, L Feng, S Ju, S Hu, M Ohnishi, N Nagai, K Hirakawa, ... Physical Review X 10 (2), 021050, 2020 | 144 | 2020 |
| Far‐infrared emission spectroscopy of hot two‐dimensional plasmons in Al0.3Ga0.7As/GaAs heterojunctions K Hirakawa, K Yamanaka, M Grayson, DC Tsui Applied physics letters 67 (16), 2326-2328, 1995 | 138 | 1995 |
| Kondo universal scaling for a quantum dot coupled to superconducting leads C Buizert, A Oiwa, K Shibata, K Hirakawa, S Tarucha Physical review letters 99 (13), 136806, 2007 | 131 | 2007 |
| Dispersive terahertz gain of a nonclassical oscillator: Bloch oscillation in semiconductor superlattices N Sekine, K Hirakawa Physical review letters 94 (5), 057408, 2005 | 130 | 2005 |
| Mobility modulation of the two-dimensional electron gas via controlled deformation of the electron wave function in selectively doped AlGaAs-GaAs heterojunctions K Hirakawa, H Sakaki, J Yoshino Physical review letters 54 (12), 1279, 1985 | 127 | 1985 |
| Charge-sensitive infrared phototransistors: Characterization by an all-cryogenic spectrometer T Ueda, Z An, K Hirakawa, S Komiyama Journal of Applied Physics 103 (9), 2008 | 125 | 2008 |
| Terahertz conductivity and possible Bloch gain in semiconductor superlattices Y Shimada, K Hirakawa, M Odnoblioudov, KA Chao Physical review letters 90 (4), 046806, 2003 | 125 | 2003 |
| Phase coherence length of electron waves in narrow AlGaAs/GaAs quantum wires fabricated by focused ion beam implantation T Hiramoto, K Hirakawa, Y Iye, T Ikoma Applied physics letters 54 (21), 2103-2105, 1989 | 116 | 1989 |
| Concentration of electrons in selectively doped GaAlAs/GaAs heterojunction and its dependence on spacer‐layer thickness and gate electric field K Hirakawa, H Sakaki, J Yoshino Applied physics letters 45 (3), 253-255, 1984 | 109 | 1984 |
| Gate-Tunable Large Negative Tunnel Magnetoresistance in Ni–C60–Ni Single Molecule Transistors K Yoshida, I Hamada, S Sakata, A Umeno, M Tsukada, K Hirakawa Nano letters 13 (2), 481-485, 2013 | 107 | 2013 |
| Spin transport through a single self-assembled InAs quantum dot with ferromagnetic leads K Hamaya, S Masubuchi, M Kawamura, T Machida, M Jung, K Shibata, ... Applied physics letters 90 (5), 053108, 2007 | 107 | 2007 |
