橋坂研究室

※学会発表はこちら　⇒　PRESENTATION

※橋坂研究室メンバーを太字で記載

2024

1. “Coherent electron splitting in interacting chiral edge channels”
   E. Iyoda, T. Shimizu, and M. Hashisaka
   arXiv:2407.11491　arXiv
2. “Mach-Zehnder interference of fractionalized electron-spin excitations”
   T. Shimizu, E. Iyoda, S. Sasaki, A. Endo, S. Katsumoto, N. Kumada, and M. Hashisaka
   arXiv:2407.11490　arXiv
3. “エッジ状態のダイナミクスとエニオン統計”
   橋坂昌幸
   第68回 物性若手夏の学校テキスト, p240-250 (2024).　doi.org/10.57393/natsugaku.2.0_240
4. “On-chip transfer of ultrashort graphene plasmon wavepackets using terahertz electronics”
   K. Yoshioka, G. Bernard, T. Wakamura, M. Hashisaka, K. Sasaki, S. Sasaki, K. Watanabe, T. Taniguchi, and N. Kumada
   Nature Electronics 2024.　doi.org/10.1038/s41928-024-01197-x
5. “Gate-tunable giant superconducting nonreciprocal transport in few-layer Td-MoTe2”
   T. Wakamura, M. Hashisaka, S. Hoshino, M. Bard, S. Okazakki, T. Sasagawa, T. Taniguchi, K. Watanabe, K. Muraki, and N. Kumada
   Physical Review Research 6, 013132-1-13 (2024).　doi.org/10.1103/PhysRevResearch.6.013132



2023

6. “Coherent-incoherent crossover of charge and neutral mode transport as evidence for the disorder-dominated fractional edge phase”
   M. Hashisaka, T. Ito, T. Akiho, S. Sasaki, N. Kumada, N. Shibata, K. Muraki
   Physical Review X 13, 031024-1-15 (2023).　doi.org/10.1103/PhysRevX.13.031024



2022

7. “Fast time-domain current measurement for quantum dot charge sensing using a homemade cryogenic transimpedance amplifier”
   H. Bohuslavskyi, M. Hashisaka, T. Shimizu, T. Akiho, K. Muraki, N. Kumada
   Applied Physics Letters 121, 184003 (2022). 　doi.org/10.1063/5.0118391
8. “Ultrafast intrinsic optical-to-electrical conversion dynamics in graphene photodetector”
   K. Yoshioka, T. Wakamura, M. Hashisaka, K. Watanabe, T. Taniguchi, N. Kumada
   Nature Photonics 16, 718-723 (2022). 　doi.org/10.1038/s41566-022-01058-z



2021

9. “Homemade-HEMT-based transimpedance amplifier for high-resolution shot-noise measurements”
   T. Shimizu, M. Hashisaka, H. Bohuslavskyi, T. Akiho, N. Kumada, S. Katsumoto, and K. Muraki
   Review of Scientific Instruments 92, 124715-1-7 (2021). 　doi.org/10.1063/5.0076196
10. “Time-resolved investigation of plasmon mode along interface channels in integer and fractional quantum Hall regimes”
    C. Lin, M. Hashisaka, T. Akiho, K. Muraki, and T. Fujisawa
    Physical Review B 104, 125304-1-9 (2021). 　doi.org/10.1103/PhysRevB.104.125304
11. “Shot noise in mesoscopic systems: from single particles to quantum liquids”
    K. Kobayashi and M. Hashisaka
    Journal of the Physical Society of Japan 90, 102001-1-47 (2021) (Invited Review Paper). 　doi.org/10.7566/JPSJ.90.102001
12. “Andreev reflection of fractional quantum Hall quasiparticles”
    M. Hashisaka, T. Jonckheere, T. Akiho, S. Sasaki, J. Rech, T. Martin, and K. Muraki
    Nature Communications 12, 2794-1-7 (2021). 　doi.org/10.1038/s41467-021-23160-6
13. “Cryogenic GaAs high-electron-mobility-transistor amplifier for current noise measurements”
    S. Lee, M. Hashisaka, T. Akiho, K. Kobayashi, and K. Muraki
    Review of Scientific Instruments 92, 023910 (2021). 　doi.org/10.1063/5.0036419
14. “Quantized charge fractionalization at quantum Hall Y junctions in the disorder dominated regime”
    C. Lin, M. Hashisaka, T. Akiho, K. Muraki, and T. Fujisawa
    Nature Communications 12, 131-1-7 (2021). 　doi.org/10.1038/s41467-020-20395-7



2020

15. “On-chip coherent frequency-domain THz spectroscopy for electrical transport”
    K. Yoshioka, N. Kumada, K. Muraki, and M. Hashisaka
    Applied Physics Letters 117, 161103 (2020). 　doi.org/10.1063/5.0024089
16. “Suppression of gate screening on edge magnetoplasmons by highly resistive ZnO gate”
    N. Kumada, N.-H. Tu, K.-i. Sasaki, T. Ota, M. Hashisaka, S. Sasaki, K. Onomitsu, and K. Muraki
    Physical Review B 101, 025205 (2020). 　doi.org/10.1103/PhysRevB.101.205205
17. “Two-step breakdown of a local v = 1 quantum Hall state”
    M. Hashisaka, K. Muraki, and T. Fujisawa
    Physical Review B 101, 041303(R) (2020). 　doi.org/10.1103/PhysRevB.101.041303



2019

18. “Charge equilibration in integer and fractional quantum Hall edge channels in a generalized Hall-bar device”
    C. Lin, R. Eguchi, M. Hashisaka, T. Akiho, K. Muraki, and T. Fujisawa
    Physical Review B 99, 195304 (2019). 　doi.org/10.1103/PhysRevB.99.195304
19. “Spectroscopic study on hot-electron transport in a quantum Hall edge channel”
    T. Ota, S. Akiyama, M. Hashisaka, K. Muraki, and T. Fujisawa
    Physical Review B 99, 085310 (2019). 　doi.org/10.1103/PhysRevB.99.085310



2018

20. “Coupling between Quantum Hall Edge Channels on Opposite Sides of a Hall Bar”
    N. H. Tu, M. Hashisaka, T. Ota, Y. Sekine, K. Muraki, T. Fujisawa, and N. Kumada
    Solid State Communications 283, 32-36 (2018). 　doi.org/10.1016/j.ssc.2018.08.007
21. “Tomonaga-Luttinger-Liquid Nature of Edge Excitations in Integer Quantum Hall Edge Channels”
    M. Hashisaka, and T. Fujisawa
    Reviews in Physics 3, 32 (2018). 　doi.org/10.1016/j.revip.2018.07.001
22. “Electronic energy spectroscopy of monochromatic edge magnetoplasmons in the quantum Hall regime”
    T. Ota, M. Hashisaka, K. Muraki, and T. Fujisawa
    Journal of Physics: Condensed Matter 30, 345301 (2018). 　doi.org/10.1088/1361-648X/aad220
23. “Signatures of a non-thermal metastable state in copropagating quantum Hall edge channels”
    K. Itoh, R. Nakazawa, T. Ota, M. Hashisaka, K. Muraki, and T. Fujisawa
    Physical Review Letters 120, 197701 (2018). 　doi.org/10.1103/PhysRevLett.120.197701



2017

24. “朝永・ラッティンジャー液体における電荷・スピン密度波束の観測実験”
    橋坂昌幸, 藤澤利正
    日本物理学会誌, vol. 72, 805 (2017) (表紙掲載).
25. “Two-electron double quantum dot coupled to coherent photon and phonon fields”
    Y. Sato, J. C. H. Chen, M. Hashisaka, K. Muraki, and T. Fujisawa
    Physical Review B 96, 115416 (2017). 　doi.org/10.1103/PhysRevB.96.115416
26. “Charge fractionalization in artificial Tomonaga-Luttinger liquids with controlled interaction strength”
    P. Brasseur, N. H. Tu, Y. Sekine, K. Muraki, M. Hashisaka, T. Fujisawa, and N. Kumada
    Physical Review B 96, 081101(R) (2017). 　doi.org/10.1103/PhysRevB.96.081101
27. “Negative and positive cross-correlations of current noises in quantum Hall edge channels at bulk filling factor v = 1”
    T. Ota, M. Hashisaka, K. Muraki, and T. Fujisawa
    Journal of Physics: Condensed Matter 29, 225302-1 (2017). 　doi.org/10.1088/1361-648X/aa6cc0
28. “Waveform measurement of charge- and spin-density wavepackets in a chiral Tomonaga-Luttinger liquid”
    M. Hashisaka, N. Hiyama, T. Akiho, K. Muraki, and T. Fujisawa
    Nature Physics 13, 559 (2017). 　doi.org/10.1038/nphys4062



2016

29. “局所分数量子ホール系における分数電荷準粒子のトンネル現象”
    橋坂昌幸, 太田智明, 村木康二, 藤澤利正
    固体物理, vol. 51, No. 2, 127 (2016).
30. “Long-lived binary tunneling spectrum in the quantum Hall Tomonaga-Luttinger liquid”
    K. Washio, R. Nakazawa, M. Hashisaka, K. Muraki, Y. Tokura, and T. Fujisawa
    Physical Review B 93, 075304 (2016). 　doi.org/10.1103/PhysRevB.93.075304



2015

31. “Exchange-induced spin blockadein a two-electron double quantum dot”
    D. Imanaka, S. Sharmin, M. Hashisaka, K. Muraki, and T. Fujisawa
    Physical Review Letters 115, 176802 (2015). 　doi.org/10.1103/PhysRevLett.115.176802
32. “Enhanced electron-phonon coupling for a semiconductor charge qubit in a surface phonon cavity”
    J. C. H. Chen, Y. Sato, R. Kosaka, M. Hashisaka, K. Muraki, and T. Fujisawa
    Scientific Reports 5, 15176 (2015). 　doi.org/10.1038/srep15176
33. “An edge magnetoplasmon Mach-Zehnder interferometer”
    N. Hiyama, M. Hashisaka, and T. Fujisawa
    Applied Physics Letters 107, 143101 (2015). 　doi.org/10.1063/1.4932111
34. “Shot-noise evidence of fractional quasiparticle creation in a local fractional quantum Hall state”
    M. Hashisaka, T. Ota, K. Muraki, and T. Fujisawa
    Physical Review Letters 114, 056802 (2015). 　doi.org/10.1103/PhysRevLett.114.056802



2014

35. “Resonant edge magnetoplasmons and their decay in graphene”
    N. Kumada, P. Roulleau, B. Roche, M. Hashisaka, H. Hibino, I. Petkovic, and D. C. Glattli
    Physical Review Letters 113, 26601 (2014). 　doi.org/10.1103/PhysRevLett.113.266601
36. “Spin-dependent tunneling rates for electrostatically defined GaAs quantum dot”
    M. Yamagishi, N. Watase, M. Hashisaka, K. Muraki, and T. Fujisawa
    Physical Review B 90, 035306 (2014). 　doi.org/10.1103/PhysRevB.90.035306
37. “Plasmon transport and its guiding in graphene”
    N. Kumada, R. Dubourget, K. Sasaki, S. Tanabe, H. Hibino, H. Kamata, M. Hashisaka, K. Muraki, and T. Fujisawa
    New Journal of Physics, 16, 063055 (2014). 　doi.org/10.1088/1367-2630/16/6/063055
38. “量子ホール端における電荷密度波のダイナミクス”
    橋坂昌幸, 鎌田大, 藤澤利正, 熊田倫雄, 村木康二
    固体物理, vol. 49, No. 5, 359 (2014).
39. “Cross-correlation measurement of quantum shot noise using homemade transimpedance amplifiers”
    M. Hashisaka, T. Ota, M. Yamagishi, K. Muraki, and T. Fujisawa
    Review of Scientific Instruments 85, 054704 (2014). 　doi.org/10.1063/1.4875588
40. “Fractionalized wave packets from an artificial Tomonaga-Luttinger liquid”
    H. Kamata, N. Kumada, M. Hashisaka, K. Muraki, and T. Fujisawa
    Nature Nanotechnology 9, 177 (2014). 　doi.org/10.1038/nnano.2013.312
41. “Single-electron counting statistics with a finite frequency bandwidth”
    N. Watase, M. Hashisaka, K. Muraki, and T. Fujisawa
    Japanese Journal of Applied Physics 53, 04EJ01 (2014). 　doi.org/10.7567/JJAP.53.04EJ01



2013

42. “Distributed-element circuit model of edge magnetoplasmon transport”
    M. Hashisaka, H. Kamata, N. Kumada, K. Washio, R. Murata, K. Muraki, and T. Fujisawa
    Physical Review B 88, 235409 (2013). 　doi.org/10.1103/PhysRevB.88.235409
43. “Plasmon transport in graphene investigated by time-resolved electrical measurements”
    N. Kumada, S. Tanabe, H. Hibino, H. Kamata, M. Hashisaka, K. Muraki, and T. Fujisawa
    Nature Communications 4, 1363 (2013). 　doi.org/10.1038/ncomms2353



2012

44. “Frequancy conversion of rf edge magnetoplasmons using a quantum point contact”
    M. Hashisaka, R. Murata, K. Muraki, and T. Fujisawa
    Applied Physics Letters 100, 233501 (2012). 　doi.org/10.1063/1.4726136
45. “Distributed electrochemical capacitance evidenced in high-frequency admittance measurements on a quantum Hall device”
    M. Hashisaka, K. Washio, H. Kamata, K. Muraki, and T. Fujisawa
    Physical Review B 85, 155424 (2012). 　doi.org/10.1103/PhysRevB.85.155424
46. “Correlation of 1/f noise between semiconductor point contacts with a common lead”
    M. Yamagishi, M. Hashisaka,K. Muraki, and T. Fujisawa
    Japanese Journal of Applied Physics 51, 02BJ08 (2012). 　doi.org/10.1143/JJAP.51.02BJ08
47. “Shot noise induced by electron-nuclear spin-flip scattering in a non-equilibrium quantum wire”
    K. Chida, M. Hashisaka, Y. Yamauchi, S. Nakamura, T. Arakawa, T. Machida, K. Kobayashi and T. Ono
    Physical Review B 85, 041309(R) (2012). 　doi.org/10.1103/PhysRevB.85.041309



2011

48. “Non-equilibrium transport in a quantum wire in the quantum Hall regime”
    K. Chida, M. Hashisaka, Y. Yamauchi, S. Nakamura, T. Arakawa, T. Machida, K. Kobayashi and T. Ono
    Journal of Physics: Conference Series 334, 012031 (2011). 　doi.org/10.1088/1742-6596/334/1/012031
49. “Time resolved potential measurement at quantum point contacts under irradiation of surface acoustic burst wave”
    T. Fujisawa, K. Nishio, T. Nagase, M. Hashisaka, and K. Muraki
    AIP Conference Proceedings 1399, 269 (2011). 　doi.org/10.1063/1.3666357
50. “Dispersive lineshape of the resistively detected NMR in a quantum wire in the quantum Hall regime”
    K. Chida, M. Hashisaka, Y. Yamauchi, S. Nakamura, T. Arakawa, T. Machida, K. Kobayashi and T. Ono
    AIP Conference Proceedings 1399, 675 (2011). 　doi.org/10.1063/1.3666557
51. “Non-equilibrium fluctuation relation in a quantum coherent conductor”
    S. Nakamura, Y. Yamauchi, M. Hashisaka, K. Chida, K. Kobayashi, T. Ono, R. Leturcq, K. Ensslin, K. Saito, Y. Utsumi, A. C. Gossard
    AIP Conference Proceedings 1399, 329 (2011). 　doi.org/10.1063/1.3666387
52. “Fluctuation theorem and microreversibility in a quantum coherent conductor”
    S. Nakamura, Y. Yamauchi, M. Hashisaka, K. Chida, K. Kobayashi, T. Ono, R. Leturcq, K. Ensslin, K. Saito, Y. Utsumi, A. C. Gossard
    Physical Review B 83, 155431 (2011). 　doi.org/10.1103/PhysRevB.83.155431
53. “Admittance Measurement for a Quantum Point Contact in a Multi-terminal Quantum Hall Device”
    K. Washio, M. Hashisaka, H. Kamata, K. Muraki, and T. Fujisawa
    Japanese Journal of Applied Physics 50, 04DJ04 (2011). 　doi.org/10.1143/JJAP.50.04DJ04
54. “Interferometric detection of edge magnetoplasmons in AlGaAs/GaAs heterostructures”
    M. Hashisaka, K. Washio, H. Kamata, K. Muraki, and T. Fujisawa
    Physica Status Solidi (C) 8, 381 (2011). 　doi.org/10.1002/pssc.201000477



2010

55. “Temperature dependence of the visibility in an electronic Mach-Zehnder interferometer”
    M. Hashisaka, A. Helzel, S. Nakamura, L. Litvin, Y. Yamauchi, K. Kobayashi, T. Ono, H. -P. Tranitz, W. Wegscheider, C. Strunk
    Physica E 42, 1091 (2010). 　doi.org/10.1016/j.physe.2009.11.072
56. “Nonequilibrium Fluctuation Relations in a Quantum Coherent Conductor”
    S. Nakamura, Y. Yamauchi, M. Hashisaka, K. Chida, K. Kobayashi, T. Ono, R. Leturcq, K. Ensslin, K. Saito, Y. Utsumi, A. C. Gossard
    Physical Review Letters 104, 080602 (2010). 　doi.org/10.1103/PhysRevLett.104.080602
57. “Bolometric shot noise detection in coupled quantum contacts”
    M. Hashisaka, Y. Yamauchi, S. Nakamura, S. Kasai, T. Ono, K. Kobayashi
    AIP conference proceedings 1199, 367 (2010). 　doi.org/10.1063/1.3295455
58. “Spin Polarization in a curvature-controlled quantum point contact”
    S. Nakamura, M. Hashisaka, Y. Yamauchi, S. Kasai, T. Ono, K. Kobayashi
    AIP conference proceedings 1199, 451 (2010). 　doi.org/10.1063/1.3295500



2009

59. “Noise measurement system at electron temperature down to 20 mK with combinations of the low pass filters”
    M. Hashisaka, Y. Yamauchi, K. Chida, S. Nakamura, K. Kobayashi, T. Ono
    Review of Scientific Instruments 80, 096105 (2009). 　doi.org/10.1063/1.3227029
60. “Non-equilibrium dephasing in ballistic interferometers”
    Y. Yamauchi, M. Hashisaka, S. Nakamura, K. Chida, S. Kasai, T. Ono, R. Leturcq, K. Ensslin, D. C. Driscoll, A. C. Gossard, K. Kobayashi
    Journal of Physics: Conference Series 193, 012045 (2009). 　doi.org/10.1088/1742-6596/193/1/012045
61. “Conductance anomaly and Fano factor reduction in quantum point contacts”
    S. Nakamura, M. Hashisaka, Y. Yamauchi, S. Kasai, T. Ono, K. Kobayashi
    Physical Review B 79, 201308(R) (2009). 　doi.org/10.1103/PhysRevB.79.201308
62. “Universality of Bias- and Temperature-induced Dephasing in Ballistic Electronic Interferometers”
    Y. Yamauchi, M. Hashisaka, S. Nakamura, K. Chida, S. Kasai, T. Ono, R. Leturcq, K. Ensslin, D. C. Driscoll, A. C. Gossard, and K. Kobayashi
    Physical Review B 79, 161306(R) (2009). 　doi.org/10.1103/PhysRevB.79.161306



2008

63. “Bolometric Detection of Quantum Shot Noise in Coupled Mesoscopic Systems”
    M. Hashisaka, Y. Yamauchi, S. Nakamura, S. Kasai, T. Ono, K. Kobayashi
    Physical Review B 78, 241303(R) (2008). 　doi.org/10.1103/PhysRevB.78.241303
64. “Measurement for quantum shot noise in a quantum point contact at low temperatures”
    M. Hashisaka, Y. Yamauchi, S. Nakamura, S. Kasai, K. Kobayashi, T. Ono
    Journal of Physics: Conference Series 109, 012013 (2008). 　doi.org/10.1088/1742-6596/109/1/012013
65. “Development of a measurement system for quantum shot noise at low temperatures”
    M. Hashisaka, S. Nakamura, Y. Yamauchi, S. Kasai, K. Kobayashi, T. Ono
    Physica Status Solidi (C) 5, 182 (2008). 　doi.org/10.1002/pssc.200776535



2007

66. “Spin-filtering effect of ferromagnetic semiconductor La2NiMnO6”
    M. Hashisaka, D. Kan, A. Masuno, T. Terashima, M. Takano K. Mibu
    Journal of Magnetism and Magnetic Materials 310, 1975 (2007). 　doi.org/10.1016/j.jmmm.2006.11.007
67. “Multiferroic thin film of Bi2NiMnO6 with ordered double-perovskite structure”
    M. Sakai, A. Masuno, D. Kan, M. Hashisaka, K. Takata, M. Azuma, M. Takano, Y. Shimakawa
    Applied Physics Letters 90, 072903 (2007). 　doi.org/10.1063/1.2539575



2006

68. “Epitaxial growth of ferromagnetic La2NiMnO6 with ordered double-perovskite structure”
    M. Hashisaka, D. Kan, A. Masuno, M. Takano, Y. Shimakawa, T. Terashima, K. Mibu
    Applied Physics Letters 89, 032504 (2006). 　doi.org/10.1063/1.2226997



2005

69. “New ferromagnetic ferroelectric Bi2NiMnO6 compound with double-perovskite structure”
    Y. Shimakawa, M. Azuma, K. Takata, M. Hashisaka, D. Kan, A. Masuno, M. Sakai, T. Terashima, K. Mibu, M. Takano
    Proc. In 12th US-Japan Seminar on Dielectric & Piezoelectric Ceramics 203, (2005).