Quantum Transport Phenomena in Twist-Controlled van der Waals Tunnel Junctions

• Project/Area Number: 19H01820
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
• Research Institution: The University of Tokyo
• Principal Investigator: Masubuchi Satoru 東京大学, 生産技術研究所, 特任准教授 (50596195)
• Project Period (FY): 2019-04-01 – 2023-03-31
• Project Status: Completed (Fiscal Year 2022)
• Budget Amount: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000); Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2020: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2019: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
• Keywords: グラフェン / 原子層 / ファンデルワールスヘテロ接合 / 二次元結晶 / トンネル輸送 / トンネル伝導 / トンネル接合

Outline of Research at the Start

フェルミ面トポロジーの変化点では、電子状態密度にvan Hove特異点が形成され、マクロな固体電子物性量に相転移が生じる。本研究では、面直電場によりトポロジーが変調可能な三層グラフェンに着目し、単層グラフェンと結晶方位をずらして重ねたTwistedトンネル接合により、運動量空間において互いのバンド構造がシフトしたトンネル素子を作製する。運動量保存による共鳴トンネルを利用し、輸送特性測定によって、エネルギー(E)・運動量(k)・スピン(σ)・ランダウ準位の観点から、三層グラフェンのバンドトポロジーを明らかにする。

Outline of Final Research Achievements

In this study, we fabricated twist-controlled van der Waals tunneling devices with a band structure shift in momentum space. By measuring the resonant tunneling with momentum conservation, we determined the energy (E), momentum (k), electronic density of states of two-dimensional materials; trilayer graphene, twisted bilayer graphene, and multilayer transition metal chalcogenides.

Academic Significance and Societal Importance of the Research Achievements

結晶方位をTwistして積み重ねることが可能な材料には、グラフェン以外にも多様な原子層物質が存在する。これまで原子層物質のバンド構造を決定するために用いられてきた面内輸送特性測定では、フェルミ面近傍の情報しか得られず、角度分解光電子分光では、エネルギー(10 meV)・運動量(0.01Å-1)分解能が限られ、走査型トンネル分光は運動量空間の分解能が無かった。本研究では、単一の固体素子内の電気伝導測定のみによって、エネルギー(1meV)・運動量(0.001 1/Å)の両方向で高い分解能が実現する技術を確立した。二次元結晶を舞台とした多様な新奇電子物性探求が可能となった。

Research Products

• [Journal Article] All-dry flip-over stacking of van der Waals junctions of 2D materials using polyvinyl chloride (2022)
  • Author(s): Onodera Momoko、Wakafuji Yusai、Hashimoto Taketo、Masubuchi Satoru、Moriya Rai、Zhang Yijin、Watanabe Kenji、Taniguchi Takashi、Machida Tomoki
  • Journal Title: Scientific Reports Volume: 12 Issue: 1 Pages: 21963-21963
  • DOI: 10.1038/s41598-022-26193-z
  • Peer Reviewed / Open Access
• [Journal Article] Evaluation of polyvinyl chloride adhesion to 2D crystal flakes (2022)
  • Author(s): Wakafuji Yusai、Onodera Momoko、Masubuchi Satoru、Moriya Rai、Zhang Yijin、Watanabe Kenji、Taniguchi Takashi、Machida Tomoki
  • Journal Title: npj 2D Materials and Applications Volume: 6 Issue: 1 Pages: 44-44
  • DOI: 10.1038/s41699-022-00323-7
  • Peer Reviewed / Open Access
• [Journal Article] Dry Pick-and-flip Assembly of van der Waals Heterostructures for Microfocus Angle-resolved Photoemission Spectroscopy (2022)
  • Author(s): S. Masubuchi, M. Sakano, Y. Tanaka, Y. Wakafuji, T. Yamamoto, S. Okazaki, K. Watanabe, T. Taniguchi, J. Li, H. Ejima, T. Sasagawa, K. Ishizaka, and T. Machida
  • Journal Title: Scientific Reports Volume: 12 Issue: 1 Pages: 10936-10936
  • DOI: 10.1038/s41598-022-14845-z
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Resonant Tunneling between Quantized Subbands in van der Waals Double Quantum Well Structure Based on Few-Layer WSe2 (2022)
  • Author(s): Kinoshita Kei、Moriya Rai、Okazaki Shota、Zhang Yijin、Masubuchi Satoru、Watanabe Kenji、Taniguchi Takashi、Sasagawa Takao、Machida Tomoki
  • Journal Title: Nano Letters Volume: 22 Issue: 12 Pages: 4640-4645
  • DOI: 10.1021/acs.nanolett.2c00396
  • Peer Reviewed
• [Journal Article] Defect-assisted tunneling spectroscopy of electronic band structure in twisted bilayer graphene/hexagonal boron nitride moire superlattices (2022)
  • Author(s): Seo Yuta、Masubuchi Satoru、Onodera Momoko、Moriya Rai、Zhang Yijin、Watanabe Kenji、Taniguchi Takashi、Machida Tomoki
  • Journal Title: Applied Physics Letters Volume: 120 Issue: 20 Pages: 203103-203103
  • DOI: 10.1063/5.0084996
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Subband-resolved momentum-conserved resonant tunneling in monolayer graphene/h-BN/ABA-trilayer graphene small-twist-angle tunneling device (2022)
  • Author(s): Seo Yuta、Masubuchi Satoru、Onodera Momoko、Zhang Yijin、Moriya Rai、Watanabe Kenji、Taniguchi Takashi、Machida Tomoki
  • Journal Title: Applied Physics Letters Volume: 120 Issue: 8 Pages: 083102-083102
  • DOI: 10.1063/5.0080215
  • Peer Reviewed
• [Journal Article] Switchable out-of-plane shift current in ferroelectric two-dimensional material CuInP2S6 (2022)
  • Author(s): Zhang Yijin、Taniguchi Rei、Masubuchi Satoru、Moriya Rai、Watanabe Kenji、Taniguchi Takashi、Sasagawa Takao、Machida Tomoki
  • Journal Title: Applied Physics Letters Volume: 120 Issue: 1 Pages: 013103-013103
  • DOI: 10.1063/5.0074371
  • Peer Reviewed
• [Journal Article] Resonant Tunneling Due to van der Waals Quantum-Well States of Few-Layer WSe2 in WSe2/h-BN/p+-MoS2 Junction (2021)
  • Author(s): Kei Takeyama, Rai Moriya, Shota Okazaki, Yijin Zhang, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Takao Sasagawa, and Tomoki Machida
  • Journal Title: Nano Letters Volume: 21 Issue: 9 Pages: 3929-3934
  • DOI: 10.1021/acs.nanolett.1c00555
  • Peer Reviewed
• [Journal Article] Probing many-body interactions in the cyclotron resonance of h-BN/bilayer graphene/h-BN (2021)
  • Author(s): Rai Moriya, Sabin Park, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Tomoki Machida
  • Journal Title: Phys. Rev. B Volume: 104 Issue: 24 Pages: 245137-245137
  • DOI: 10.1103/physrevb.104.245137
  • Peer Reviewed
• [Journal Article] Recent Progress in the Assembly of van der Waals Heterostructures (2020)
  • Author(s): 増渕 覚、町田 友樹
  • Journal Title: Butsuri Volume: 75 Issue: 9 Pages: 550-558
  • DOI: 10.11316/butsuri.75.9_550
  • NAID: 130007940685
  • ISSN: 0029-0181, 2423-8872
  • Year and Date: 2020-09-05
  • Peer Reviewed
• [Journal Article] Dark-state impact on the exciton recombination of WS2 monolayers as revealed by multi-timescale pump-probe spectroscopy (2020)
  • Author(s): Kuroda Takashi、Hoshi Yusuke、Masubuchi Satoru、Okada Mitsuhiro、Kitaura Ryo、Watanabe Kenji、Taniguchi Takashi、Machida Tomoki
  • Journal Title: Physical Review B Volume: 102 Issue: 19 Pages: 195407-195407
  • DOI: 10.1103/physrevb.102.195407
  • Peer Reviewed / Open Access
• [Journal Article] Emergence of orbital angular moment at van Hove singularity in graphene/h-BN moire superlattice (2020)
  • Author(s): Moriya Rai、Kinoshita Kei、Crosse J. A.、Watanabe Kenji、Taniguchi Takashi、Masubuchi Satoru、Moon Pilkyung、Koshino Mikito、Machida Tomoki
  • Journal Title: Nature Communications Volume: 11 Issue: 1 Pages: 1-6
  • DOI: 10.1038/s41467-020-19043-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Carbon annealed HPHT-hexagonal boron nitride: Exploring defect levels using 2D materials combined through van der Waals interface (2020)
  • Author(s): Onodera Momoko、Isayama Miyako、Taniguchi Takashi、Watanabe Kenji、Masubuchi Satoru、Moriya Rai、Haga Taishi、Fujimoto Yoshitaka、Saito Susumu、Machida Tomoki
  • Journal Title: Carbon Volume: 167 Pages: 785-791
  • DOI: 10.1016/j.carbon.2020.05.032
  • Peer Reviewed
• [Journal Article] Low-temperature p-type ohmic contact to WSe2 using p+-MoS2/WSe2 van der Waals interface (2020)
  • Author(s): Takeyama Kei、Moriya Rai、Watanabe Kenji、Masubuchi Satoru、Taniguchi Takashi、Machida Tomoki
  • Journal Title: Applied Physics Letters Volume: 117 Issue: 15 Pages: 153101-153101
  • DOI: 10.1063/5.0016468
  • Peer Reviewed
• [Journal Article] Cyclotron Resonance Study of Monolayer Graphene under Double Moire Potentials (2020)
  • Author(s): Onodera Momoko、Kinoshita Kei、Moriya Rai、Masubuchi Satoru、Watanabe Kenji、Taniguchi Takashi、Machida Tomoki
  • Journal Title: Nano Letters Volume: 20 Issue: 6 Pages: 4566-4572
  • DOI: 10.1021/acs.nanolett.0c01427
  • Peer Reviewed
• [Journal Article] Selective etching of hexagonal boron nitride by high-pressure CF4 plasma for individual one-dimensional ohmic contacts to graphene layers (2020)
  • Author(s): Seo Yuta、Masubuchi Satoru、Watanabe Eisuke、Onodera Momoko、Moriya Rai、Watanabe Kenji、Taniguchi Takashi、Machida Tomoki
  • Journal Title: Applied Physics Letters Volume: 117 Issue: 24 Pages: 243101-243101
  • DOI: 10.1063/5.0022557
  • Peer Reviewed
• [Journal Article] Assembly of van der Waals heterostructures: exfoliation, searching, and stacking of 2D materials (2020)
  • Author(s): Momoko Onodera, Satoru Masubuchi, Rai Moriya, Tomoki Machida
  • Journal Title: Japanese Journal of Applied Physics Volume: 59 Issue: 1 Pages: 010101-010101
  • DOI: 10.7567/1347-4065/ab5ee0
  • NAID: 210000157739
  • Peer Reviewed / Open Access
• [Journal Article] 3D Manipulation of 2D Materials Using Microdome Polymer (2020)
  • Author(s): Yusai Wakafuji, Rai Moriya, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Tomoki Machida
  • Journal Title: Nano Letters Volume: 20 Issue: 4 Pages: 2486-2486
  • DOI: 10.1021/acs.nanolett.9b05228
  • Peer Reviewed
• [Journal Article] Deep-learning-based image segmentation integrated with optical microscopy for automatically searching for two-dimensional materials (2020)
  • Author(s): Satoru Masubuchi, Eisuke Watanabe, Yuta Seo, Shota Okazaki, Takao Sasagawa, Kenji Watanabe, Takashi Taniguchi, Tomoki Machida
  • Journal Title: npj 2D Materials and Applications Volume: 4 Issue: 1 Pages: 1-1
  • DOI: 10.1038/s41699-020-0137-z
  • Peer Reviewed / Open Access
• [Journal Article] Dry release transfer of graphene and few-layer h-BN by utilizing thermoplasticity of polypropylene carbonate (2019)
  • Author(s): Kei Kinoshita, Rai Moriya, Momoko Onodera, Yusai Wakafuji, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Tomoki Machida
  • Journal Title: npj 2D Materials and Applications Volume: 3 Issue: 1 Pages: 1-1
  • DOI: 10.1038/s41699-019-0104-8
  • Peer Reviewed / Open Access
• [Journal Article] Carbon-Rich Domain in Hexagonal Boron Nitride: Carrier Mobility Degradation and Anomalous Bending of the Landau Fan Diagram in Adjacent Graphene (2019)
  • Author(s): Momoko Onodera, Kenji Watanabe, Miyako Isayama, Miho Arai, Satoru Masubuchi, Rai Moriya, Takashi Taniguchi, Tomoki Machida
  • Journal Title: Nano letters Volume: 19 Issue: 10 Pages: 7282-7282
  • DOI: 10.1021/acs.nanolett.9b02879
  • Peer Reviewed
• [Journal Article] Detection of cyclotron resonance using photo-induced thermionic emission at graphene/MoS2 van der Waals interface (2019)
  • Author(s): Yusai Wakafuji, Rai Moriya, Sabin Park, Kei Kinoshita, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Tomoki Mach
  • Journal Title: Applied Physics Letters Volume: 115 Issue: 14 Pages: 143101-143101
  • DOI: 10.1063/1.5119932
  • Peer Reviewed
• [Journal Article] Rhenium dinitride: Carrier transport in a novel transition metal dinitride layered crystal (2019)
  • Author(s): Onodera Momoko、Kawamura Fumio、Cuong Nguyen Thanh、Watanabe Kenji、Moriya Rai、Masubuchi Satoru、Taniguchi Takashi、Okada Susumu、Machida Tomoki
  • Journal Title: APL Materials Volume: 7 Issue: 10 Pages: 101103-101103
  • DOI: 10.1063/1.5118713
  • NAID: 120007127637
  • Peer Reviewed / Open Access
• [Journal Article] Photo-Nernst detection of cyclotron resonance in partially irradiated graphene (2019)
  • Author(s): Kei Kinoshita, Rai Moriya, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Tomoki Machida
  • Journal Title: Applied Physics Letters Volume: 115 Issue: 15 Pages: 153102-153102
  • DOI: 10.1063/1.5119722
  • Peer Reviewed
• [Journal Article] Momoko Onodera, Miho Arai, Satoru Masubuchi, Kei Kinoshita, Rai Moriya, Kenji Watanabe, Takashi Taniguchi, Tomoki Machida (2019)
  • Author(s): Momoko Onodera, Miho Arai, Satoru Masubuchi, Kei Kinoshita, Rai Moriya, Kenji Watanabe, Takashi Taniguchi, Tomoki Machida
  • Journal Title: Nano letters Volume: 19 Issue: 11 Pages: 8097-8097
  • DOI: 10.1021/acs.nanolett.9b03280
  • Peer Reviewed
• [Journal Article] Hexagonal boron nitride synthesized at atmospheric pressure using metal alloy solvents: Evaluation as a substrate for 2D materials (2019)
  • Author(s): Momoko Onodera, Takashi Taniguchi, Kenji Watanabe, Miyako Isayama, Satoru Masubuchi, Rai Moriya, Tomoki Machida
  • Journal Title: Nano Letters Volume: 20 Issue: 1 Pages: 735-735
  • DOI: 10.1021/acs.nanolett.9b04641
  • Peer Reviewed
• [Presentation] 折り畳みグラフェン/h-BN素子の作製と磁場反転接合の実現 (2023)
  • Author(s): 若藤 祐斉,守谷 頼, 増渕 覚,張 奕勁,渡邊 賢司,谷口 尚,町田 友樹
  • Organizer: 第70回応用物理学会春季学術講演会
• [Presentation] 共鳴トンネル効果を用いたツイスト2層WSe2の価電子帯Γ点バンドの検出 (2023)
  • Author(s): 木下 圭,守谷 頼,岡崎 尚太,張 奕勁,増渕 覚,渡邊 賢司,谷口 尚,笹川 崇男,町田 友樹
  • Organizer: 第70回応用物理学会春季学術講演会
• [Presentation] グラフェン/C-doped h-BN接合における欠陥アシストトンネル過程 (2023)
  • Author(s): 瀬尾 優太,辻 悠基,木下 圭,小野寺 桃子,張 奕勁,増渕 覚,守谷 頼,渡邊 賢司,谷口 尚,町田 友樹
  • Organizer: 第70回応用物理学会春季学術講演会
• [Presentation] ツイスト2層WSe2におけるバンド構造のツイスト角依存性の直接観測 (2023)
  • Author(s): 山本崇人, 坂野昌人, 赤塚俊輔, 岡崎尚太, 笹川崇男, 渡邊賢司, 谷口尚, 北村未歩, 堀場弘司, 菅原克明, 相馬清吾, 佐藤宇史, 組頭広志, 篠北啓介, 松田一成, 増渕覚, 町田友樹, 石坂香子, 三石夏樹
  • Organizer: 日本物理学会２０２３年春季大会
• [Presentation] 時間分解X線回折測定によるVTe2における超高速格子変調ダイナミクスの観測 (2023)
  • Author(s): 鈴木剛, 久保田雄也, 三石夏樹, 赤塚俊輔, 古賀淳平, 坂野昌人, 増渕覚, 田中良和, 大隅寛幸, 玉作賢治, 矢橋牧名, 高橋英史, 石渡晋太郎, 町田友樹, 松田巌, 石坂香子, 岡﨑浩三
  • Organizer: 日本物理学会２０２３年春季大会
• [Presentation] 時間分解X線回折測定によるVTe2における超高速格子変調ダイナミクスの観測 (2023)
  • Author(s): 鈴木剛, 久保田雄也, 三石夏樹, 赤塚俊輔, 古賀淳平, 坂野昌人, 増渕覚, 田中良和, 大隅寛幸, 玉作賢治, 矢橋牧名, 高橋英史, 石渡晋太郎, 町田友樹, 松田巌, 石坂香子, 岡﨑浩三
  • Organizer: 第36回日本放射光学会年会・放射光科学合同シンポジウム
• [Presentation] Defect-assisted resonant tunneling in graphene/carbon-doped hexagonal boron nitride junctions (2023)
  • Author(s): Yuta Seo,Yuki Tsuji,Kei Kinoshita,Momoko Onodera,Satoru Masubuchi,Rai Moriya,Yijin Zhang,Kenji Watanabe,Takashi Taniguchi,Tomoki Machida
  • Organizer: APS March Meeting
  • Int'l Joint Research
• [Presentation] Observation on the odd-even layer-number effect in WTe2 with laser-based micro-ARPES (2023)
  • Author(s): Masato Sakano,Satoru Masubuchi,Yuma Tanaka,Shota Okazaki,Takuya Nomoto,Atsushi Oshima,Kenji Watanabe,Takashi Taniguchi,Ryotaro Arita,Takao Sasagawa,Tomoki Machida,Kyoko Ishizaka
  • Organizer: APS March Meeting
  • Int'l Joint Research
• [Presentation] Breaking of spatial inversion symmetry in anti-parallel-stacked ReSe2 (2023)
  • Author(s): Shunsuke Akatsuka,Masato Sakano,Takato Yamamoto,Takuya Nomoto,Ryotaro Arita,Ryoga Murata,Takao Sasagawa,Kenji Watanabe,Takashi Taniguchi,Miho Kitamura,Koji Horiba,Katsuaki Sugawara,Seigo Souma,Takafumi Sato,Hiroshi Kumigashira,Keisuke Shinokita,Kazunari Matsuda,Satoru Masubuchi,Tomoki Machida,Kyoko Ishizaka
  • Organizer: APS March Meeting
  • Int'l Joint Research
• [Presentation] 粘着テープ自動剥離装置を用いたグラフェンメカニカル劈開条件の最適化 (2022)
  • Author(s): 若藤 祐斉,増渕 覚,神谷 啓介,小野寺 桃子,張 奕勁,守谷 頼,町田 友樹
  • Organizer: 第８３回応用物理学会秋期学術講演会
• [Presentation] 二次元強誘電体CuInP2S6における面直バルク光起電力効果 (2022)
  • Author(s): 張 奕勁,谷口 黎,増渕 覚,守谷 頼,渡邊 賢司,谷口 尚,笹川 崇男,町田 友樹
  • Organizer: 第８３回応用物理学会秋期学術講演会
• [Presentation] 4層WSe2のサブバンド間共鳴トンネルにおけるツイスト角度依存性 (2022)
  • Author(s): 木下 圭,守谷 頼,岡崎 尚太,張 奕勁,増渕 覚,渡邊 賢司,谷口 尚,笹川 崇男,町田 友樹
  • Organizer: 第８３回応用物理学会秋期学術講演会
• [Presentation] バルクp+-MoS2/h-BN/バルクp+-MoS2トンネル接合における負性微分抵抗の観測 (2022)
  • Author(s): 川崎 盛矢,木下 圭,守谷 頼,張 奕勁,増渕 覚,渡邊 賢司,谷口 尚,笹川 崇男,町田 友樹
  • Organizer: 第８３回応用物理学会秋期学術講演会
• [Presentation] ツイスト二層WTe2の対称性制御とレーザー角度分解光電子分光・SHG観測 (2022)
  • Author(s): 神谷 啓介,張 奕勁,山本 崇人,坂野 昌人,篠北 啓介,岡崎 尚太,増渕 覚,渡邊 賢司,谷口 尚,笹川 崇男,松田 一成,石坂 香子,町田 友樹
  • Organizer: 第８３回応用物理学会秋期学術講演会
• [Presentation] グラフェン量子輸送特性を通したh-BN結晶評価 (2022)
  • Author(s): 小野寺 桃子,渡邊 賢司,諫山 都子,増渕 覚,守谷 頼,芳賀 太史,谷口 尚,斎藤 晋,町田 友樹
  • Organizer: 第８３回応用物理学会秋期学術講演会
• [Presentation] グラフェン/C-doped h-BN接合での欠陥アシストトンネル (2022)
  • Author(s): 瀬尾 優太,辻 悠基,小野寺 桃子,張 奕勁,増渕 覚,守谷 頼,渡邊 賢司,谷口 尚,町田 友樹
  • Organizer: 第８３回応用物理学会秋期学術講演会
• [Presentation] 超高速時間分解電子顕微鏡によるツイスト2層WSe2の超高速格子ダイナミクスの研究 (2022)
  • Author(s): 中村飛鳥, 千足勇介, 下志万貴博, 田中佑磨, 坂野昌人, 増渕覚, 町田友樹, 渡邊賢司, 谷口尚, 石坂香子
  • Organizer: 日本物理学会２０２２年秋季大会
• [Presentation] 180度ツイスト2層ReSe2における空間反転対称性の破れと電子状態 (2022)
  • Author(s): 赤塚俊輔, 坂野昌人, 山本崇人, 野本拓也, 有田亮太郎, 村田陵河, 笹川崇男, 渡邊賢司, 谷口尚, 北村未歩, 堀場弘司, 菅原克明, 相馬清吾, 佐藤宇史, 組頭広志, 篠北啓介, 松田一成, 増渕覚, 町田友樹, 石坂香子
  • Organizer: 日本物理学会２０２２年秋季大会
• [Presentation] Investigation of phonon Poiseuille flow in purified graphite crystals (2022)
  • Author(s): Huang Xin,Yangyu Guo,Yunhui Wu,Satoru Masubuchi,Kenji Watanabe,Takashi Taniguchi,Zhongwei Zhang,Sebastian Volz,Tomoki Machida,Masahiro Nomura
  • Organizer: 第69回応用物理学会春季学術講演会
• [Presentation] Tunneling photo-thermoelectric effect under cyclotron resonance in graphene-based van der Waals heterojunction (2022)
  • Author(s): Sabin Park,Rai Moriya,Seo Yuta,Yijin Zhang,Satoru Masubuchi,Kenji Watanabe,Takashi Taniguchi,Tomoki Machida
  • Organizer: 第69回応用物理学会春季学術講演会
• [Presentation] ツイスト単層/二層グラフェンにおけるトポロジカルエッジ伝導の観測 (2022)
  • Author(s): 金田譲, 増渕覚, 中辻直斗, 越野幹人, 張奕勁, 守谷頼, 渡邊賢司, 谷口尚, 町田友樹
  • Organizer: 一般社団法人 日本物理学会 第77回年次大会（2022年）
• [Presentation] Anomalous hysteresis in dual-gate h-BN/WTe₂/h-BN van der Waals junction devices (2021)
  • Author(s): Xiaohan Yang,Yijin Zhang,Eisuke Watanabe,Satoru Masubuchi,Rai Moriya,Shota Okazaki,Takao Sasagawa,Mina Maruyama,Susumu Okada,Kenji Watanabe,Takashi Taniguchi,Tomoki Machida
  • Organizer: 第82回応用物理学会秋季学術講演会
• [Presentation] 4層WSe₂の伝導帯サブバンドを利用した共鳴トンネル効果 (2021)
  • Author(s): 木下 圭,守谷 頼,岡崎 尚太,張 奕勁,増渕 覚,渡邊 賢司,谷口 尚,笹川 崇男,町田 友樹
  • Organizer: 第69回応用物理学会春季学術講演会
• [Presentation] 複数層WSe₂のサブバンド準位における共鳴トンネル効果の観測 (2021)
  • Author(s): 竹山 慶,守谷 頼,岡崎 尚太,張 奕勁,増渕 覚,渡邊 賢司,谷口 尚,笹川 崇男,町田 友樹
  • Organizer: 第82回応用物理学会秋季学術講演会
• [Presentation] 4層WSe₂/h-BN二重量子井戸における共鳴トンネル効果 (2021)
  • Author(s): 木下 圭,守谷 頼,岡崎 尚太,張 奕勁,増渕 覚,渡邊 賢司,谷口 尚,笹川 崇男,町田 友樹
  • Organizer: 第82回応用物理学会秋季学術講演会
• [Presentation] 家庭用 PVC ラップを用いた二次元層状ヘテロ構造の作製 (2021)
  • Author(s): 若藤 祐斉,守谷 頼,小野寺 桃子,増渕 覚,渡辺 賢司,谷口 尚,町田 友樹
  • Organizer: 第82回応用物理学会秋季学術講演会
• [Presentation] ツイスト二層/二層WTe₂における電子状態の観測 (2021)
  • Author(s): 坂野昌人, 田中佑磨, 増渕覚, 岡崎尚太, 野本拓也, 山本崇人, 渡邊賢司, 谷口尚, 有田亮太郎, 笹川崇男, 町田友樹, 石坂香子
  • Organizer: 一般社団法人 日本物理学会2021年秋季大会
• [Presentation] ランダウ量子化二層グラフェンのサイクロトロン共鳴における多体効果 (2021)
  • Author(s): 守谷 頼,朴 士彬,増渕 覚,渡邊 賢司,谷口 尚,町田 友樹
  • Organizer: 第82回応用物理学会秋季学術講演会
• [Presentation] ツイスト積層二層グラフェンにおけるサイクロトロン共鳴吸収の観測 (2021)
  • Author(s): 小野寺 桃子,瀬尾 優太,増渕 覚,守谷 頼,渡邊 賢司,谷口 尚,越野 幹人,町田 友樹
  • Organizer: 第82回応用物理学会秋季学術講演会
• [Presentation] Twisted二層グラフェン/h-BNモアレ超格子での非局所負抵抗の観測 (2021)
  • Author(s): 瀬尾 優太,増渕 覚,守谷 頼,渡邊 賢司,谷口 尚,町田 友樹
  • Organizer: 第82回応用物理学会秋季学術講演会
• [Presentation] Detection of cyclotron resonance using bulk-contacted graphene device (2021)
  • Author(s): Sabin Park,Rai Moriya,Yuta Seo,Yijin Zhang,Satoru Masubuchi,Kenji Watanabe,Takashi Taniguchi,Tomoki Machida
  • Organizer: 第82回応用物理学会秋季学術講演会
• [Presentation] Twisted二層グラフェンvdWトンネル素子での電気伝導測定 (2021)
  • Author(s): 瀬尾 優太,増渕 覚,守谷 頼,渡邊 賢司,谷口 尚,町田 友樹
  • Organizer: 第82回応用物理学会秋季学術講演会
• [Presentation] Transfer method in the liquid phase for two-dimensional materials (2021)
  • Author(s): Yusai Wakafuji, Rai Moriya, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Tomoki Machida
  • Organizer: The 12th Recent Progress in Graphene and Two-dimensional Materials Research Conference
  • Int'l Joint Research
• [Presentation] Resonant tunneling and negative differential resistance in fewlayer WSe₂/h-BN/p⁺-MoS₂ van der Waals junctions (2021)
  • Author(s): Tomoki Machida, Kei Takeyama, Rai Moriya, Yijin Zhang, Satoru Masubuchi,Shota Okazaki, Takao Sasagawa, Kenji Watanabe, and Takashi Taniguchi
  • Organizer: The 12th Recent Progress in Graphene and Two-dimensional Materials Research Conference
  • Int'l Joint Research
• [Presentation] Quantum Hall photo-thermoelectric effect in inner contact graphene device (2021)
  • Author(s): Sabin Park, Rai Moriya, Yuta Seo, Yijin Zhang, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, and Tomoki Machida
  • Organizer: The 12th Recent Progress in Graphene and Two-dimensional Materials Research Conference
  • Int'l Joint Research
• [Presentation] Large orbital angular moment at van Hove singularity in graphene/h-BN moire superlattice probed by magneto thermoelectric measurement (2021)
  • Author(s): Rai Moriya, Kei Kinoshita, J. A. Crosse, Kenji Watanabe, Takashi Taniguchi,Satoru Masubuchi, Pilkyung Moon, Mikito Koshino, and Tomoki Machida
  • Organizer: The 12th Recent Progress in Graphene and Two-dimensional Materials Research Conference
  • Int'l Joint Research
• [Presentation] Cyclotron resonance absorption in monolayer graphene under double moire potentials (2021)
  • Author(s): Momoko Onodera, Kei Kinoshita, Rai Moriya, Satoru Masubuchi, Kenji Watanabe,Takashi Taniguchi, and Tomoki Machida
  • Organizer: The 12th Recent Progress in Graphene and Two-dimensional Materials Research Conference
  • Int'l Joint Research
• [Presentation] 単層WTe2の電気伝導における強誘電的ヒステリシス (2021)
  • Author(s): 渡邉 瑛介、増渕 覚、張 奕勁、岡崎 尚太、笹川 崇男、渡邊 賢司、谷口 尚、町田 友樹
  • Organizer: 第68回応用物理学会春季学術講演会
• [Presentation] 液相中における二次元層状物質転写手法の開発 (2021)
  • Author(s): 若藤 祐斉、守谷 頼、増渕 覚、渡邊 賢司、谷口 尚、町田 友樹
  • Organizer: 第68回応用物理学会春季学術講演会
• [Presentation] 原子層1T'-MoTe2における電子状態の観測と層数依存性 (2021)
  • Author(s): 田中佑磨, 増渕覚, 坂野昌人, 野本拓也, 有田亮太郎, 岡崎尚太, 笹川崇男, 渡邊賢司, 谷口尚, 武田和大, 大池広志, 賀川史敬, 町田友樹, 石坂香子
  • Organizer: 日本物理学会第76回年次大会
• [Presentation] Twisted二層グラフェン/h-BN接合における特異な電場スクリーニング (2021)
  • Author(s): 瀬尾 優太、増渕 覚、守谷 頼、渡邊 賢司、谷口 尚、越野 幹人、町田 友樹
  • Organizer: 第68回応用物理学会春期学術講演会
• [Presentation] ツイスト二層/二層グラフェンの第二電荷中性点における磁気抵抗振動の電場変調 (2021)
  • Author(s): 金田譲, 増渕覚, 越野幹人, 渡邊賢司, 谷口尚, 町田友樹
  • Organizer: 日本物理学会第76回年次大会
• [Presentation] グラフェン/h-BNモアレ超格子における電子の軌道角運動量の観測 (2021)
  • Author(s): 守谷 頼、木下 圭、Crosse J. A.、渡邊 賢司、谷口 尚、増渕 覚、Moon Pilkyung、越野 幹人、町田 友樹1,5
  • Organizer: 第68回応用物理学会春季学術講演会
• [Presentation] 高圧CF4プラズマによるh-BNの選択エッチングとグラフェン素子作製 (2021)
  • Author(s): 瀬尾 優太、増渕 覚、渡邉 瑛介、小野寺 桃子、守谷 頼、渡邊 賢司、谷口 尚、町田 友樹
  • Organizer: 第68回応用物理学会春季学術講演会
• [Presentation] 複数層WSe2のサブバンド準位における共鳴トンネル効果の観測 (2021)
  • Author(s): 竹山 慶、守谷 頼、岡崎 尚太、張 奕勁、増渕 覚、渡邊 賢司、谷口 尚、笹川 崇男、町田 友樹
  • Organizer: 第68回応用物理学会春季学術講演会
• [Presentation] グラフェンのキャリア輸送特性をプローブとしたh-BN結晶の評価 (2020)
  • Author(s): 小野寺桃子, 渡邊賢司, 諌山都子, 増渕覚, 守谷頼, 谷口尚, 町田友樹
  • Organizer: 第81回応用物理学会秋季学術講演会 2020年
• [Presentation] p+-MoS2/WSe2接合を用いたWSe2への低温オーミック電極の実現 (2020)
  • Author(s): 竹山慶, 守谷頼, 増渕覚, 渡邊賢司, 谷口尚, 町田友樹
  • Organizer: 第81回応用物理学会秋季学術講演会 2020年
• [Presentation] 原子層WTe2における電子状態の観測と層数依存性, (2020)
  • Author(s): 田中佑磨, 増渕覚, 坂野昌人, 大島敦史, 野本拓也, 有田亮太郎, 岡崎尚太, 笹川崇男, 渡邊賢司 , 谷口尚, 町田友樹, 石坂香子
  • Organizer: 第81回応用物理学会秋季学術講演会 2020年, オンライン開催 (2020).
• [Presentation] 二重モアレグラフェンにおけるサイクロトロン共鳴吸収, (2020)
  • Author(s): 小野寺桃子, 木下圭, 守谷頼, 増渕覚, 渡邊賢司, 谷口尚, 町田友樹,
  • Organizer: 日本物理学会2020年秋季大会, オンライン開催 (2020).
• [Presentation] 原子層WTe2における層数依存した電子状態の観測 (2020)
  • Author(s): 田中佑磨, 増渕覚, 坂野昌人, 大島敦史, 野本拓也, 有田亮太, 岡崎尚太, 笹川崇男, 渡邊賢司, 谷口尚, 町田友樹, 石坂香子,
  • Organizer: 日本物理学会2020年秋季大会, オンライン開催 (2020)
• [Presentation] Mid-infrared photoresponse due to cyclotron resonance absorption in graphene/h-BN van der Waals heterostructures (2020)
  • Author(s): T. Machida, M. Onodera, S. Masubuchi, K. Kinoshita, R. Moriya, K. Watanabe, and T. Taniguchi
  • Organizer: SSDM2020, All-VIRTUAL conference (2020).
  • Int'l Joint Research
• [Presentation] Degenerately Doped p+-MoS2as a High Work Function Electrode Material in van der Waals Heterostructure (2020)
  • Author(s): R. Moriya, K. Takeyama, S. Masubuchi, K. Watanabe, T. Taniguchi, and T. Machida
  • Organizer: SSDM2020, All-VIRTUAL conference (2020)
  • Int'l Joint Research
• [Presentation] Deep-learning-assisted robotic assembly of van der Waals superlattices (2020)
  • Author(s): S. Masubuchi, E. Watanabe, Y. Seo, M. Onodera, S. Okazaki, T. Sasagawa, K. Watanabe, T. Taniguchi, and T. Machida
  • Organizer: SSDM2020, All-VIRTUAL conference (2020)
  • Int'l Joint Research
• [Presentation] Evaluation of hexagonal boron nitride crystals in terms of an insulating building block of van der Waals heterostructures (2020)
  • Author(s): M. Onodera, K. Watanabe, M. Isayama, S. Masubuchi, R. Moriya, T. Taniguchi, and T. Machida
  • Organizer: SSDM2020, All-VIRTUAL conference (2020)
  • Int'l Joint Research
• [Presentation] Robotic assembly of two-dimensional crystals to build van der Waals superlattices (2020)
  • Author(s): Satoru Masubuchi
  • Organizer: 2021 International Meeting on Thin Film Interfaces and Composite Crystals
  • Int'l Joint Research / Invited
• [Presentation] 深層学習を活用したファンデルワールス超格子の自動作製 (2020)
  • Author(s): 増渕覚, 町田友樹
  • Organizer: 第39回電子材料シンポジウム
  • Invited
• [Presentation] Robotic searching and assembly of two-dimensional crystals to build van der Waals superlattices (2020)
  • Author(s): S. Masubuchi
  • Organizer: MRS Fall Meeting
  • Int'l Joint Research / Invited
• [Presentation] ファンデルワールス超格子の自動作製：ロボットによる二次元層状物質の劈開・探索・積層 (2020)
  • Author(s): 増渕覚
  • Organizer: 産業科学ナノテクノロジーセンター若手セミナー、「物質科学と機械学習」
  • Invited
• [Presentation] グラフェン量子輸送特性から見たh-BN結晶中不純物過多領域の影響評価 (2020)
  • Author(s): 小野寺 桃子、渡邊 賢司、諌山 都、増渕 覚、守谷 頼、谷口 尚、町田 友樹
  • Organizer: 第67回応用物理学会春季学術講演会
• [Presentation] p+-MoS2を用いたWSe2へのvdWコンタクト作製 (2020)
  • Author(s): 竹山 慶、守谷 頼、増渕 覚、渡邊 賢司、谷口 尚、町田 友樹
  • Organizer: 第67回応用物理学会春季学術講演会
• [Presentation] WTe2ファンデルワールスヘテロ接合素子における量子輸送特性 (2020)
  • Author(s): 渡邉 瑛介、増渕 覚、張 奕勁、岡崎 尚太、笹川 崇男、渡邊 賢司、谷口 尚、町田 友樹
  • Organizer: 第67回応用物理学会春季学術講演会
• [Presentation] 原子層WTe2のフレーク試料作製とARPESによるバンド構造の観測 (2020)
  • Author(s): 田中佑磨，増渕覚，坂野昌人，大島敦，岡崎尚太，笹川崇男， 渡邊賢司，谷口尚，町田友樹，石坂香子
  • Organizer: 日本物理学会 第75回年次大会
• [Presentation] 二次元層状物質の自動劈開・探索・積層によるファンデルワールス超格子の作製 (2019)
  • Author(s): 増渕覚
  • Organizer: 2019年度夏学期 駒場 物性セミナー
  • Invited
• [Presentation] Machine-learning autonomous robotic searching and assembly of two-dimensional crystals to build van der Waals superlattices (2019)
  • Author(s): Satoru Masubuchi
  • Organizer: RPGR2019 (Recent Progress of Graphene and 2D materials 2019)
  • Int'l Joint Research / Invited
• [Presentation] Cyclotron resonance absorption in trilayer graphene (2019)
  • Author(s): Momoko Onodera, Miho Arai, Satoru Masubuchi, Kei Kinoshita, Rai Moriya, Kenji Watanabe, Takashi Taniguchi, Tomoki Machida
  • Organizer: Compound Semiconductor Week 2019 [CSW2019]
  • Int'l Joint Research
• [Presentation] “マイクロポリマードームを用いた二次元層状物質の操作 ～うごかす、はがす、おりたたむ～” (2019)
  • Author(s): 若藤 祐斉、守谷 頼、増渕 覚、渡辺 賢司、谷口 尚、町田 友樹
  • Organizer: 第80回応用物理学会秋季学術講演会
• [Presentation] Subband-resolved resonant tunneling in trilayer graphene/h-BN/graphene van der Waals heterostructures (2019)
  • Author(s): Yuta Seo, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, and Tomoki Machida
  • Organizer: Graphene Week 2019
  • Int'l Joint Research
• [Presentation] Electrical tuning of cyclotron resonance magnetic field in a dual-gated trilayer graphene/h-BN vdW heterostructrue (2019)
  • Author(s): Momoko Onodera, Miho Arai, Satoru Masubuchi, Kei Kinoshita, Rai Moriya, Kenji Watanabe, Takashi Taniguchi, and Tomoki Machida
  • Organizer: RPGR2019 (Recent Progress of Graphene and 2D materials 2019)
  • Int'l Joint Research
• [Presentation] Dry Release Transfer of Graphene and Few-layer h-BN by utilizing Thermoplasticity of Polypropylene Carbonate for Fabricating van der Waals Heterostructures (2019)
  • Author(s): Rai Moriya, Kei Kinoshita, Momoko Onodera, Yusai Wakafuji, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, and Tomoki Machida
  • Organizer: RPGR2019 (Recent Progress of Graphene and 2D materials 2019)
  • Int'l Joint Research
• [Presentation] Transport properties of graphene on h-BN grown with an alloy solvent at atmospheric pressure (2019)
  • Author(s): Momoko Onodera, Takashi Taniguchi, Kenji Watanabe, Satoru Masubuchi, Tomoki Machida
  • Organizer: RPGR2019 (Recent Progress of Graphene and 2D materials 2019)
  • Int'l Joint Research
• [Presentation] Subband-resolved resonant tunneling in trilayer graphene/h-BN/graphene heterostructures (2019)
  • Author(s): Yuta Seo, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, Tomoki Machida
  • Organizer: RPGR2019 (Recent Progress of Graphene and 2D materials 2019)
  • Int'l Joint Research
• [Presentation] Influence of C-rich domain in h-BN on the carrier transport in graphene/h-BN van der Waals heterostructures (2019)
  • Author(s): Momoko Onodera, Kenji Watanabe, Miyako Isayama, Miho Arai, Satoru Masubuchi, Takashi Taniguchi, Tomoki Machida
  • Organizer: RPGR2019 (Recent Progress of Graphene and 2D materials 2019)
  • Int'l Joint Research
• [Presentation] Cyclotron Resonance-induced Thermionic Emission in Graphene/MoS2 van del Waals Schottky Junctions (2019)
  • Author(s): Yusai Wakafuji, Rai Moriya, Sabin Park, Kei Kinoshita, Satoru Masubuchi, Kenji Watanabe, Takashi Taniguchi, and Tomoki Machida
  • Organizer: RPGR2019 (Recent Progress of Graphene and 2D materials 2019)
  • Int'l Joint Research
• [Presentation] Influence of the carbon-rich domain in hexagonal boron nitride on transport properties of adjacent graphene (2019)
  • Author(s): Momoko Onodera, Kenji Watanabe, Miyako Isayama, Satoru Masubuchi, Rai Moriya , Takashi Taniguchi , and Tomoki Machida
  • Organizer: 第58回 フラーレン・ナノチューブ・グラフェン総合シンポジウム (FNTG学会)
• [Book] グラフェンから広がる二次元物質の新技術と応用 ～世界の動向、CVD合成、転写積層、量子物性、センサ・デバイス、THz応用～ (2020)
  • Author(s): 吾郷浩樹、齋藤理一郎
  • Total Pages: 558
  • Publisher: (株)エヌ・ティー・エス