NAKAMURA SACHIKO
Organization
Faculty of Sciences Department of Physics Associate Professor
Research Institute of Superconductor Science and Systems
（Joint Appointment）
School of Sciences Department of Physics（Joint Appointment）
Graduate School of Sciences Department of Physics（Joint Appointment）
Title
Associate Professor
Contact information
Profile
I study linear and nonlinear optical responses of superconductors using terahertz time-domain spectroscopy, and try to develop related spectroscopic techniques.
External link
ORCID
Degree
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Ph.D. in Physics
Research History
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2013–2014 東京大学理学系研究科物理学専攻 2014–2020 東京大学低温センター研究開発部門 2020–2022 東京大学低温科学研究センター研究開発部門
Research Interests・Research Keywords
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Research theme：Terahertz time-domain spectroscopy on superconductors and development of spectroscopic techniques.
Keyword：terahertz spectroscopy, superconductors, low temperature
Research period： 2022.11
Awards
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Best Poster Award
2017.8 LT28 poster award committee Best Poster Award in the 28th International Conference on Low Temperature Physics (LT28)
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学修奨励賞
2008.3 東京大学理学部
Papers
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Picosecond Trajectory of Two-Dimensional Vortex Motion in FeSe0.5Te0.5 Visualized by Terahertz Second Harmonic Generation Reviewed International journal
Sachiko Nakamura, Haruki Matsumoto, Hiroki Ogawa, Tomoki Kobayashi, Fuyuki Nabeshima, Atsutaka Maeda, and Ryo Shimano
Physical Review Letters 133 036004 2024.7
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Nonreciprocal Terahertz Second-Harmonic Generation in Superconducting NbN under Supercurrent Injection Reviewed International journal
Sachiko Nakamura, Kota Katsumi, Hirotaka Terai, Ryo Shimano
Physical Review Letters 125 ( 9 ) 097004-1 - 097004-5 2020.8
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Infrared Activation of the Higgs Mode by Supercurrent Injection in Superconducting NbN Reviewed International journal
Sachiko Nakamura, Yudai Iida, Yuta Murotani, Ryusuke Matsunaga, Hirotaka Terai, Ryo Shimano
Physical Review Letters 122 257001-1 - 257001-5 2019.6
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Possible quantum liquid crystal phases of helium monolayers Reviewed International journal
S. Nakamura, K. Matsui, T. Matsui, Hiroshi Fukuyama
PHYSICAL REVIEW B 94 ( 18 ) 2016.11
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Jun Usami, Ryo Toda, Sachiko Nakamura, Tomohiro Matsui, Hiroshi Fukuyama
Journal of Low Temperature Physics 208 ( 5-6 ) 457 - 466 2022.1 （ ISSN:0022-2291 ）
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Specific heat, thermal conductivity, and magnetic susceptibility of cyanate ester resins – An alternative to commonly used epoxy resins Reviewed
95 76 - 81 2018.10
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Characterization of Pyrolytic Graphite Sheet: A New Type of Adsorption Substrate for Studies of Superfluid Thin Films Reviewed
Sachiko Nakamura, Daisuke Miyafuji, Ryo Toda, Tomohiro Matsui, Hiroshi Fukuyama
Journal of Low Temperature Physics 192 ( 5-6 ) 1 - 16 2018.5
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4He permeation and H2O uptake of cyanate ester resins-an alternative to commonly used epoxy resins at low temperature Reviewed
Sachiko Nakamura, Takenori Fujii, Shoji Matsukawa, Masayuki Katagiri, Hiroshi Fukuyama
Journal of Physics: Conference Series 969 ( 1 ) 2018.4
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Low temperature transport properties of pyrolytic graphite sheet Reviewed
Sachiko Nakamura, Daisuke Miyafuji, Takenori Fujii, Tomohiro Matsui, Hiroshi Fukuyama
CRYOGENICS 86 118 - 122 2017.9
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Experimental Apparatus to Search for Supersolidity in Monolayer He on Graphite Reviewed
Y. Kubota, R. Toda, M. Kamada, S. Nakamura, T. Matsui, Hiroshi Fukuyama
JOURNAL OF LOW TEMPERATURE PHYSICS 175 ( 1-2 ) 160 - 166 2014.4
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Preliminary heat capacity and vapor pressure measurements of 2D 4He on ZYX graphite Reviewed
S. Nakamura, K. Matsui, T. Matsui, Hiroshi Fukuyama
Journal of Low Temperature Physics 171 ( 5-6 ) 711 - 717 2013.6
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Millikelvin LEED apparatus: a feasibility study Reviewed
K. Matsui, S. Nakamura, T. Matsui, Hiroshi Fukuyama
26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5 400 ( PART 4 ) 2012.12
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New Heat-Capacity Measurements of the Possible Order-Disorder Transition in the 4/7-phase of 2D Helium Reviewed
S. Nakamura, K. Matsui, T. Matsui, Hiroshi Fukuyama
26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5 400 ( PART 3 ) 2012.12
Presentations
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Observation of a low energy collective mode in FeSe by terahertz third-harmonic generation International conference
H. Matsumoto, S. Nakamura, H. Ogawa, T. Kobayashi, F. Nabeshima, A. Maeda, R. Shimano
MPI-UBC-UTokyo Workshop 2023 2023.12
Professional Memberships
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THE PHYSICAL SOCIETY OF JAPAN
Committee Memberships
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Organizer Domestic
2023.4 - 2024.3
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日本物理学会九州支部 庶務 Domestic
2023.4 - 2024.3
Academic Activities
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Local Organizing Committee International contribution
QFS2018 (International Symposium of Quantum Fluids and Solids) （ Japan ） 2018.7
Research Projects
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高強度サブテラヘルツ波パルスで操る超伝導ナノ磁気構造ダイナミクス
2021 - 2024
戦略的創造研究推進事業 (文部科学省)
Authorship：Principal investigator Grant type：Contract research
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Grant number：20K14408 2020 - 2022
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Early-Career Scientists
Nakamura Sachiko
Authorship：Principal investigator Grant type：Scientific research funding
Supercurrents are dissipationless flows of superconducting electrons that break both time-reversal and space-inversion symmetries. Therefore, superconductors under supercurrent injection exhibit specific electromagnetic responses known as nonreciprocal transport phenomena, resulting from the symmetry breaking.
In this project, we investigated nonlinear optical responses of superconductors by observing the transmitted terahertz (THz) pulses for high-intensity and narrowband THz irradiations under three methods of supercurrent injection: (1) direct injection of a DC supercurrent, (2) dynamical induction of a transient current using THz pulses, and (3) static induction of a shielding current using weak magnetic fields. -
電流注入法による超伝導ヒッグスモードの観測方法の確立とその応用
Grant number：18K13496 2018 - 2019
日本学術振興会 科学研究費助成事業 若手研究
Authorship：Principal investigator Grant type：Scientific research funding
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2次元中性フェルミ粒子系の磁性と超流動
Grant number：15H03684 2015 - 2018
日本学術振興会 科学研究費助成事業 基盤研究(B)
Authorship：Collaborating Investigator(s) (not designated on Grant-in-Aid) Grant type：Scientific research funding
Class subject
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物理学ゼミナールB
2024.12 - 2025.2 Winter quarter
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物理学ゼミナール（R2以前入学者用）
2024.10 - 2025.3 Second semester
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物理学ゼミナールA
2024.10 - 2024.12 Fall quarter
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物性物理学Ⅲ
2024.4 - 2024.9 First semester
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力学概論
2024.4 - 2024.9 First semester
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最先端物理学A
2024.4 - 2024.7 Spring quarter
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物理学ゼミナールB
2023.12 - 2024.2 Winter quarter
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物理学総合実験（電子回路技術）
2023.10 - 2023.12 Fall quarter
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力学概論
2023.4 - 2023.9 First semester
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物理学特別講義１２
2023.4 - 2023.9 First semester
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最先端物理学B
2023.4 - 2023.9 First semester
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物理学総合実験（電子回路技術）
2023.4 - 2023.6 Spring quarter
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物理学入門ⅡB
2022.12 - 2023.2 Winter quarter
FD Participation
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2024.7 Role：Participation Title：九州大学アクティブラーニング教室 「物理学における反転授業の実践例」 （文部科学省教育関係共同利用拠点事業）
Organizer：[Undergraduate school/graduate school/graduate faculty]
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2024.2 Role：Participation Title：【物理学科FD】大学院の魅力創造に向けて
Organizer：Undergraduate school department
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2023.4 Role：Participation Title：令和５年度 第１回全学ＦＤ（新任教員の研修）The 1st All-University FD (training for new faculty members) in FY2023
Organizer：University-wide
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2023.3 Role：Participation Title：【物理学科FD】物理数学の教育と効果的な演習に向けて
Organizer：Undergraduate school department