Wave phonon engineering based on monolayer NEMS functionalized using sub-nanometer ion beam

• Project/Area Number: 20K20442
• Project/Area Number (Other): 19H05520 (2019)
• Research Category: Grant-in-Aid for Challenging Research (Pioneering)
• Allocation Type: Multi-year Fund (2020); Single-year Grants (2019)
• Review Section: Medium-sized Section 28:Nano/micro science and related fields
• Research Institution: Japan Advanced Institute of Science and Technology
• Principal Investigator: 水田 博 北陸先端科学技術大学院大学, 先端科学技術研究科, 教授 (90372458)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Project Status: Completed (Fiscal Year 2023)
• Budget Amount: ¥25,740,000 (Direct Cost: ¥19,800,000、Indirect Cost: ¥5,940,000); Fiscal Year 2023: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2022: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2021: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2020: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2019: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
• Keywords: NEMS / グラフェン / ナノイオンビーム / 熱フォノン / 熱整流素子 / ナノメッシュ / 波動性フォノン / 熱ダイオード / 熱トランジスタ / サブナノイオンビーム

Outline of Research at the Start

宙吊りにしたグラフェンを用いたNEMS（ナノ電子機械システム）上に、フォノンの波動性が支配的となるシングルナノメータのフォノニック結晶(GPnC)構造や非対称チャネル構造を形成し【波動性ナノフォノニック工学】創生を狙う。ビーム径～0.3 nmの集束ヘリウムイオンビームで種々のナノ孔形状・配列を有するGPnCを作製し、フォノンバンドギャップ帯域およびゾーン・フォールディングによるフォノン群速度低下を制御する。これにより、熱整流素子、熱ナビゲータ、およびアクチュエーション電界でGPnC特性を機械的に変調する熱フォノンスイッチなど、波動性熱フォノン制御を可能とする革新的機能デバイスを開発する。

Outline of Annual Research Achievements

R４年度で構築したEBによるナノフォノニック構造形成技術により、宙吊りグラフェンのチャネル半面に並列状のナノリボンを形成した非対称構造を作製し、その詳細な特性評価を行った。チャネル全体の長さLを500 nm、幅Wを 1200 nmに固定した上で、並列ナノリボンの幅Wnr：30～150 nm、間隔Dnrを112～204 nmと変化させて素子を作製した。熱流を担うフォノン伝導が準弾道的となるように全体のチャネル長Lをグラフェンのフォノン平均自由行程MFP～775 nmより短く設計した。試作した素子を系統的に評価した結果、リボン幅Wnrが90 nmより狭い極細ナノリボン並列チャネル構造（本数は５本）に対して、室温で熱整流性を観測することに成功した。熱整流率はナノリボン幅を細くするほど増大し、Wnr = 30 nmの素子では室温で40%を超える熱整流率が得られた。また、熱整流率の温度依存性については、これまでに得られた結果と同様に低温で増大する傾向が観測された。今回の並列ナノリボン構造で室温動作が実現された要因としては、極細ナノリボンチャネル幅方向での熱フォノン閉じ込め効果に加えて、ドライエッチングで形成したナノリボン内部に炭素原子の点欠陥が導入され、熱フォノン局在化の増長が加わったと解釈される。
一方、R４年度までに作製・評価した非対称ナノメッシュチャネル構造における熱整流のメカニズム解明においては、原子スケールでナノ形状（エッジおよびナノ孔）を考慮した非平衡分子動力学(NEMD)シミュレーションを実施した。これにより、ナノメッシュ領域のフォノン状態密度に熱フォノン局在ピークが生じ、ナノメッシュ内に高温の熱フォノンが選択的に束縛されることがわかった。これによって、熱バイアスの極性に依存して、チャネル内の温度分布の反転対称性が崩れることが見出された。

Research Products

• [Journal Article] Raman spectroscopy of doubly aligned bilayer graphene (2024)
  • Author(s): Kareekunnan Afsal、Akabori Masashi、Watanabe Kenji、Taniguchi Takashi、Mizuta Hiroshi
  • Journal Title: Applied Physics Letters Volume: 124 Issue: 9
  • DOI: 10.1063/5.0191121
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Nonlinearity and temperature dependence of CVD graphene nanoelectromechanical resonator (2023)
  • Author(s): de Moraes Nogueira Alexandro、Enomoto Shohei、Muruganathan Manoharan、Kareekunnan Afsal、Islam Mohammad Razzakul、Akabori Masashi、Mizuta Hiroshi
  • Journal Title: Japanese Journal of Applied Physics Volume: 63 Issue: 2 Pages: 02SP13-02SP13
  • DOI: 10.35848/1347-4065/ad0505
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Anomalous Random Telegraph Signal in Suspended Graphene with Oxygen Adsorption: Implications for Gas Sensing (2023)
  • Author(s): de Moraes Nogueira Alexandro、Kareekunnan Afsal、Akabori Masashi、Mizuta Hiroshi、Muruganathan Manoharan
  • Journal Title: ACS Applied Nano Materials Volume: 6 Issue: 18 Pages: 17140-17148
  • DOI: 10.1021/acsanm.3c03348
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Characterisation and modelling of nonlinear resonance behaviour on very-high-frequency silicon nanoelectromechanical resonators (2023)
  • Author(s): Ben Fang、Fernando James、Ou Jun-Yu、Dupre Cecilia、Ollier Eric、Hassani Faezeh Arab、Mizuta Hiroshi、Tsuchiya Yoshishige
  • Journal Title: Micro and Nano Engineering Volume: 19 Pages: 100212-100212
  • DOI: 10.1016/j.mne.2023.100212
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Machine learning identification of atmospheric gases by mapping the graphene-molecule van der waals complex bonding evolution (2023)
  • Author(s): Osazuwa G. Agbonlahor, Manoharan Muruganathan, Amit Banerjee, Hiroshi Mizuta
  • Journal Title: Sensors and Actuators B: Chemical Volume: 380 Pages: 133383-133383
  • DOI: 10.1016/j.snb.2023.133383
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Sub 0.5 Volt Graphene-hBN van der Waals Nanoelectromechanical Switches (2022)
  • Author(s): Manoharan Muruganathan, Ngoc Huynh Van, Marek E. Schmidt, and Hiroshi Mizuta
  • Journal Title: Advanced Functional Materials Volume: 32 Issue: 52 Pages: 2209151-2209151
  • DOI: 10.1002/adfm.202209151
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Carbon molecular sieve-functionalized graphene sensors for highly sensitive detection of ethanol (2022)
  • Author(s): Sankar Ganesh Ramaraj, Manoharan Muruganathan, Osazuwa G. Agbonlahor, Hisashi Maki, Yosuke Onda, Masashi Hattori, Hiroshi Mizuta
  • Journal Title: Carbon Volume: 190 Pages: 359-365
  • DOI: 10.1016/j.carbon.2022.01.023
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Current effect on suspended graphene nanoribbon studied using in?situ transmission electron microscopy (2022)
  • Author(s): Liu Chunmeng、Zhang Jiaqi、Ganesh Ramaraj Sankar、Zhang Xiaobin、Muruganathan Manoharan、Mizuta Hiroshi、Oshima Yoshifumi
  • Journal Title: Applied Surface Science Volume: 573 Pages: 151563-151563
  • DOI: 10.1016/j.apsusc.2021.151563
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Thermal rectification on asymmetric suspended graphene nanomesh devices (2021)
  • Author(s): Fayong Liu, Manoharan Muruganathan, Yu Feng, Shinichi Ogawa, Yukinori Morita, Chunmeng Liu, Jiayu Guo, Marek Schmidt and Hiroshi Mizuta
  • Journal Title: Nano Futures Volume: 5 Issue: 4 Pages: 045002-045002
  • DOI: 10.1088/2399-1984/ac36b5
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Revisiting the Mechanism of Electric Field Sensing in Graphene Devices (2021)
  • Author(s): Afsal Kareekunnan, Tatsufumi Agari, Ahmed M. M. Hammam, Takeshi Kudo, Takeshi Maruyama, Hiroshi Mizuta, and Manoharan Muruganathan
  • Journal Title: ACS Omega Volume: 6 Issue: 49 Pages: 34086-34091
  • DOI: 10.1021/acsomega.1c05530
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Dose-dependent Milling Efficiencies of Helium and Nitrogen Beams in PMMA (2021)
  • Author(s): Gunter Ellrott, Shinichi Ogawa, Munenori Uno, Yukinori Morita, Manoharan Muruganathan, Maria Kolesnik-Gray, Vojislav Krstic, Hiroshi Mizuta
  • Journal Title: Microelectronic Engineering Volume: 249 Pages: 111621-111621
  • DOI: 10.1016/j.mee.2021.111621
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Room-temperature negative magnetoresistance of helium-ion-irradiated defective graphene in the strong Anderson localization regime (2021)
  • Author(s): Iwasaki Takuya、Nakamura Shu、Agbonlahor Osazuwa G.、Muruganathan Manoharan、Akabori Masashi、Morita Yoshifumi、Moriyama Satoshi、Ogawa Shinichi、Wakayama Yutaka、Mizuta Hiroshi、Nakaharai Shu
  • Journal Title: Carbon Volume: 175 Pages: 87-92
  • DOI: 10.1016/j.carbon.2020.12.076
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Adsorbed Molecules as Interchangeable Dopants and Scatterers with a van der Waals Bonding Memory in Graphene Sensors (2020)
  • Author(s): Osazuwa G. Agbonlahor, Manoharan Muruganathan, Tomonori Imamura and Hiroshi Mizuta
  • Journal Title: ACS Sensors Volume: 5 Issue: 7 Pages: 2003-2009
  • DOI: 10.1021/acssensors.0c00403
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Design of Graphene Phononic Crystals for Heat Phonon Engineering (2020)
  • Author(s): Haque Mayeesha Masrura, Afsal Kareekunnan, Fayong Liu, Sankar Ganesh Ramaraj, Gunter Ellrott, Ahmmed M. M. Hammam, Manoharan Muruganathan and Hiroshi Mizuta
  • Journal Title: Micromachines Volume: 11 Issue: 7 Pages: 655-655
  • DOI: 10.3390/mi11070655
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Conductance Tunable Suspended Graphene Nanomesh by Helium Ion Beam Milling (2020)
  • Author(s): Fayong Liu, Zhongwang Wang, Soya Nakano, Shinichi Ogawa, Yukinori Morita, Marek Schmidt, Mayeesha Haque, Manoharan Muruganathan and Hiroshi Mizuta
  • Journal Title: Micromachines Volume: 11 Issue: 4 Pages: 387-387
  • DOI: 10.3390/mi11040387
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Modulation of twisted bilayer CVD graphene interlayer resistivity by order of magnitude based on in-situ annealing (2019)
  • Author(s): Jothiramalingam Kulothungan, Manoharan Muruganathan, Hiroshi Mizuta
  • Journal Title: Carbon Volume: 153 Pages: 355-363
  • DOI: 10.1016/j.carbon.2019.07.036
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Quantum Dot Formation in Controllably Doped Graphene Nanoribbon (2019)
  • Author(s): Zhongwang Wang, Yahua Yuan, Xiaochi Liu, Jian Sun, Manoharan Muruganathan and Hiroshi Mizuta
  • Journal Title: ACS Nano Volume: 13 Issue: 7 Pages: 7502-7507
  • DOI: 10.1021/acsnano.9b02935
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Downscaled Graphene Devices for Advanced Sensing and Thermal Engineering (2024)
  • Author(s): H. Mizuta, A. Kareekunnan, M. Muruganathan
  • Organizer: JAIST International symposium on Nano-Materials for Novel Devices
  • Int'l Joint Research / Invited
• [Presentation] Graphene-based devices: From fundamental physics to real-world applications (2023)
  • Author(s): Afsal Kareekunnan
  • Organizer: XXII International Workshop on Physics of Semiconductor Devices
  • Int'l Joint Research / Invited
• [Presentation] Graphene Nano-Electro-Mechanical Device Technology for Extreme Sensing and Nanoscale Thermal Engineering (2023)
  • Author(s): H. Mizuta
  • Organizer: 2023 International Conference on Nano Research and Development (ICNRD-2023)
  • Int'l Joint Research / Invited
• [Presentation] Graphene-based Nanoelectronic Devices and NEMS for extreme sensing and nanoscale thermal engineering (2023)
  • Author(s): H. Mizuta and M. Muruganathan
  • Organizer: The 25th Takayanagi Kenjiro Memorial Symposium
  • Int'l Joint Research / Invited
• [Presentation] Development of thermal rectification on asymmetric defect-engineered graphene device (2023)
  • Author(s): M. Razzakul, A. kareekunnam, H. Mizuta
  • Organizer: 49th International Conference on Micro and Nano Engineering Conference (MNE2023)
  • Int'l Joint Research
• [Presentation] Graphene-based nanoelectronic devices and NEMS for advanced sensing and nanoscale thermal engineering (2023)
  • Author(s): H. Mizuta, A. Kareekunnan, M. Muruganathan
  • Organizer: International Conference on Materials Science, Engineering & Technology, Singapore
  • Int'l Joint Research / Invited
• [Presentation] Graphene Based NEMS and Electric Field Sensor: From Research to Real-World Applications (2023)
  • Author(s): Afsal Kareekunnan, Manoharan Muruganathan, Ngoc Huynh Van, Marek E Schmidt, Takeshi Kudo, Takeshi Maruyama, Hiroshi Mizuta
  • Organizer: Silicon Nanoelectronics Workshop 2023 (SNW 2023)
  • Int'l Joint Research / Invited
• [Presentation] Nonlinearity and temperature dependence of graphene nanoelectromechanical resonator (2023)
  • Author(s): Alexandro de Moraes Nogueira, Shohei Enomoto, Manoharan Muruganathan, Afsal Kareekunnan, Masashi Akabori, Hiroshi Mizuta
  • Organizer: the 9th International Symposium on Organic and Inorganic Materials and Related Nanotechnologies (EM-NANO 2023)
  • Int'l Joint Research
• [Presentation] Edge dependence of current-voltage curves of graphene nanoribbon (2023)
  • Author(s): Chunmeng Liu, Muruganathan Manoharan, Hiroshi Mizuta, Yoshifumi Oshima
  • Organizer: the 9th International Symposium on Organic and Inorganic Materials and Related Nanotechnologies (EM-NANO 2023)
  • Int'l Joint Research
• [Presentation] Observation of Valley Hall effect in non-encapsulated bilayer graphene (2023)
  • Author(s): Teppei Shintaku, Kareekunnan Afsal, Masashi Akabori, Kenji Watanabe, Takashi Taniguchi, Hiroshi Mizuta
  • Organizer: The 64th Fullerenes-Nanotubes-Graphene General Symposium
  • Int'l Joint Research
• [Presentation] 光照射STMによるグラフェンナノデバイスの熱励起電子観測 (2023)
  • Author(s): 川村 亮太, 金 唐逸, Fayong Liu, 玉置 亮, 草場 哲, 水田 博, 片山 郁文, 武田 淳
  • Organizer: 第70回応用物理学会春季学術講演会
• [Presentation] 多層グラフェンのラマンスペクトルの温度依存性と光学フォノン温度 (2023)
  • Author(s): 劉 鋭安, カリクンナン アフサル, 宮田 全展, 水田 博, 小矢野 幹夫
  • Organizer: 第70回応用物理学会春季学術講演会
• [Presentation] hBN-二層グラフェンヘテロ構造を用いたバレーホール効果の観測 (2023)
  • Author(s): 新宅 哲平, カリクンナン アフサル, 赤堀 誠志, 渡邊 賢治, 谷口 尚, 水田 博
  • Organizer: 第70回応用物理学会春季学術講演会
• [Presentation] Low-frequency noise of suspended CVD graphene in oxygen environment (2022)
  • Author(s): Alexandro de Moraes Nogueira, Manoharan Muruganathan, Hiroshi Mizuta
  • Organizer: International Symposium on Empathy and Symbiosis with Nature
  • Int'l Joint Research
• [Presentation] 非対称グラフェンナノメッシュデバイスの熱伝導特性に関する研究 (2022)
  • Author(s): 大園 祥輝, ファヨン リウ, 小川 真一, 森田行則, マノハラン・ムルガナタン, 水田 博
  • Organizer: 自然との共感・共生国際シンポジウム
  • Int'l Joint Research
• [Presentation] 原子層材料によるサイレントボイスセンシング (2022)
  • Author(s): 水田 博
  • Organizer: 自然との共感・共生国際シンポジウム
  • Int'l Joint Research
• [Presentation] Beyond Graphene: TMDC 2D materials for advanced sensing and information processing (2022)
  • Author(s): Afsal Kareekunnan
  • Organizer: International Symposium on Empathy and Symbiosis with Nature
  • Int'l Joint Research
• [Presentation] Research funding trends in Japan and development of Silent Voice Sensing Technology (2022)
  • Author(s): Hiroshi MIZUTA
  • Organizer: NanoFutures 2022
  • Int'l Joint Research / Invited
• [Presentation] Sub-10-nm nanomesh patterned on suspended graphene for nanoscale thermal engineering (2022)
  • Author(s): H. Mizuta, G. Jiayu, Y. Ozono, S. Ogawa, Y. Morita, A. Kareekunnan, M. Muruganathan and F. Liu
  • Organizer: IEEE 16th International Conference on Solid-State and Integrated CIrcuit Technology (ICSICT2022)
  • Int'l Joint Research / Invited
• [Presentation] Sub-10-nm patterning on suspended graphene by using focused He ion beam for heat phonon engineering (2022)
  • Author(s): H. Mizuta, G. Jiayu, Y. Ozono, S. Ogawa, Y. Morita, A. Kareekunnan, M. Muruganathan and F. Liu
  • Organizer: 2nd International Meet and Expo on Nanotechnology (NANOMEET2022)
  • Int'l Joint Research / Invited
• [Presentation] Temperature dependence of CVD graphene nanomechanical resonator (2022)
  • Author(s): Alexandro Nogueira, Shohei Enomoto, Manoharan Muruganathan, Afsal Kareekunnan, Masashi Akabori, Hiroshi Mizuta
  • Organizer: 第83回応用物理学会秋季学術講演会
• [Presentation] Fabrication of MoS2 nanoribbon by direct transfer for in-situ TEM observation (2022)
  • Author(s): Chunmeng Liu, Xiaobin Zhang, Jiaqi Zhang, Muruganathan Manoharan, Hiroshi Mizuta, Yoshifumi Oshima
  • Organizer: The 22nd International Vacuum Congress
  • Int'l Joint Research
• [Presentation] Structure Dependent Current-Voltage Curves of Suspended Graphene Nanoribbon (2022)
  • Author(s): Limi Chen, Chunmeng Liu, Fayong Liu, Kareekunnan Afsal, Manoharan Muruganathan, Hiroshi Mizuta, Yoshifumi Oshima
  • Organizer: The 22nd International Vacuum Congress
  • Int'l Joint Research
• [Presentation] Asymmetric Thermal Transport on Suspended Trapezoidal Graphene Channels (2022)
  • Author(s): Jiayu Guo, Fayong Liu, 小川 真一, 森田 行則, Manoharan Muruganathan, 水田 博
  • Organizer: 第69回応用物理学会春季学術講演会
• [Presentation] Graphene Nano-electro-mechanical device technology for extreme sensing and nanoscale thermal engineering (2021)
  • Author(s): H. Mizuta
  • Organizer: NIMS WEEK 2021
  • Int'l Joint Research / Invited
• [Presentation] Graphene nanomesh for electron and phonon engineering (2021)
  • Author(s): Fayong Liu, Jiayu Guo, Shinichi Ogawa, Yukinori Morita, Marek Schmidt, Manoharan Muruganathan, Hiroshi Mizuta
  • Organizer: The 4th EuFN and FIT4NANO Joint Workshop / Meeting
  • Int'l Joint Research
• [Presentation] Graphene NEMS Technology with He Ion beam Single-Nanometer Patterning for Advanced Sensing and Thermal Engineering (2021)
  • Author(s): H. Mizuta, G. Jiayu, S. Ogawa, Y. Morita, M. Muruganathan and F. Liu
  • Organizer: International Meet & Expo on Nanotechnology (NANOMEET2021)
  • Int'l Joint Research / Invited
• [Presentation] Enhancement of Electric Field Sensitivity in Graphene for Early Lightning Prediction (2021)
  • Author(s): Kareekunnan Afsal, Tatsufumi Agari, Takeshi Kudo, Takeshi Maruyama, Hiroshi Mizuta, and Manoharan Muruganathan
  • Organizer: Silicon Nanoelectronics Workshop 2021
  • Int'l Joint Research
• [Presentation] All-2D Graphene Nano-Electro-Mechanical (NEM) Switch and the Progress of High-Sensitive Electric Field Sensing for Thunder Clouds Movements (2021)
  • Author(s): Manoharan Muruganathan, Afsal Kareekunnan, Tatsufumi Agari, Huynh Van Ngoc, Takeshi Kudo, Takeshi Maruyama, and Hiroshi Mizuta
  • Organizer: The 8th International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies (EM-NANO)
  • Int'l Joint Research / Invited
• [Presentation] Quantum dot formation on suspended graphene nanomesh by helium ion beam milling technology (2021)
  • Author(s): Fayong Liu, Manoharan Muruganathan, Shinichi Ogawa, Yukinori Morita, Zhongwang Wang, Marek Schmidt, Hiroshi Mizuta
  • Organizer: 2021 5th IEEE Electron Devices Technology & Manufacturing Conference (EDTM2021)
  • Int'l Joint Research
• [Presentation] Enhancing Electric Field Sensitivity in Graphene Devices by hBN Encapsulation (2021)
  • Author(s): Afsal Kareekunnan, Tatsufumi Agari, Takeshi Kudo, Takeshi Maruyama, Hiroshi Mizuta, Manoharan Muruganathan
  • Organizer: 第82回応用物理学会秋季学術講演会
• [Presentation] Molecular dynamics study on Asymmetric graphene nanomesh thermal rectifier (2021)
  • Author(s): Fayong Liu, Jiayu Guo, Manoharan Muruganathan, Shinichi Ogawa, Yukinori Morita, Hiroshi Mizuta
  • Organizer: 第82回応用物理学会秋季学術講演会
• [Presentation] High-Performance Graphene Devices and the Detection of Silent Voices from Thunder Clouds (2021)
  • Author(s): Manoharan Muruganathan, Afsal Kareekunnan, Tatsufumi Agari, Huynh Van Ngoc, Takeshi Kudo, Takeshi Maruyama, and Hiroshi Mizuta
  • Organizer: 6th International Conference on Advances in Functional Materials
  • Int'l Joint Research / Invited
• [Presentation] Thermal rectification based on asymmetric nanomesh formed on suspended graphene (2021)
  • Author(s): Fayong Liu，Manoharan Muruganathan，小川 真一，森田 行則，郭 嘉裕，Marek Schmidt，水田 博
  • Organizer: 第68回応用物理学会春季学術講演会
• [Presentation] Observation of charge carrier localization-induced negative magnetoresistance at room temperature in helium-ion-irradiated defective graphene (2020)
  • Author(s): Takuya Iwasaki, Shu Nakamura, Osazuwa Gabriel Agbonlahor, Manoharan Muruganathan, Masashi Akabori, Yoshifumi Morita, Satoshi Moriyama, Shinichi Ogawa, Yutaka Wakayama, Hiroshi Mizuta, Shu Nakaharai
  • Organizer: 2020 International Conference on Solid State Devices and Materials
  • Int'l Joint Research
• [Presentation] Capacitively coupled suspended CVD graphene ribbons for electromechanical device applications (2020)
  • Author(s): Amit Banerjee, Manoharan Muruganathan, Hisashi Maki, Masashi Hattori, Hiroshi Mizuta
  • Organizer: 2020 International Conference on Solid State Devices and Materials
  • Int'l Joint Research
• [Presentation] Thermal rectification phenomenon on suspended half-meshed graphene devices (2020)
  • Author(s): Fayong Liu, Manoharan Muruganathan, Shinichi Ogawa, Yukinori Morita, Zhongwang Wang, Jiayu Guo, Mayeesha Haque, Marek Schmidt, Hiroshi Mizuta
  • Organizer: 2020 International Conference on Solid State Devices and Materials
  • Int'l Joint Research
• [Presentation] Half-meshed and fully-meshed suspended graphene for transport gap engineering (2020)
  • Author(s): Fayong Liu, Manoharan Muruganathan, Shinichi Ogawa, Yukinori Morita, Marek Schmidt, Hiroshi Mizuta
  • Organizer: 2020 IEEE Silicon Nanoelectronics Workshop
  • Int'l Joint Research
• [Presentation] 集束ヘリウムイオンビームによるグラフェンのシングルナノメータ加工と機能デバイス応用 (2020)
  • Author(s): Hiroshi Mizuta, Guo Jiayu, Mayeesha Haque, Marek E. Schmidt, Shinichi Ogawa, Yukinori Morita, Zhongwang Wang, Manoharan Muruganathan and Fayong Liu
  • Organizer: 第21回「イオンビームによる表面・界面の解析と改質」特別研究会
  • Invited
• [Presentation] Negative magnetoresistance of helium-ion-irradiated graphene in the strong Anderson localization regime (2020)
  • Author(s): Takuya Iwasaki, Manoharan Muruganathan, Masashi Akabori, Yoshifumi Morita,Satoshi Moriyama, Shinichi Ogawa, Yutaka Wakayama, Hiroshi Mizuta, Shu Nakaharai
  • Organizer: 第81回応用物理学会秋季学術講演会
• [Presentation] Graphene nanomesh patterned by helium ion beam milling towards the application of quantum devices (2020)
  • Author(s): F. Liu , M. Manoharan , S. Ogawa , Y. Morita , Z. Wang , M. Schmidt , H. Mizuta
  • Organizer: 第81回応用物理学会秋季学術講演会
• [Presentation] Helium Ion Beam Induced Stress on Graphene Cantilever (2020)
  • Author(s): Ahmed Hammam, Shinichi Ogawa, Yukinori Morita, AMIT BANERJEE, Manoharan Muruganathan, Hiroshi Mizuta
  • Organizer: 第81回応用物理学会秋季学術講演会
• [Presentation] Helium Ion Beam Milling for Chiral Nanostructures (2020)
  • Author(s): Guenter Ellrott, Shinichi Ogawa, Yukinori Morita, Manoharan Muruganathan, Vojislav Krstic, Hiroshi Mizuta
  • Organizer: 第67回応用物理学会春季学術講演会
• [Presentation] Transport properties of large-area fully & half meshed suspended graphene (2020)
  • Author(s): F. Liu, S. Nakano, M. Haque, Z. Wang, M. Schmidt, S. Ogawa, Y. Morita, M. Manoharan, H. Mizuta
  • Organizer: 第67回応用物理学会春季学術講演会
• [Presentation] Fabrication and characterization of asymmetric suspended trapezoid graphene (2020)
  • Author(s): S. Nakano, F. Liu, H. Mayeesha, M. Muruganathan, H. Mizuta
  • Organizer: 第67回応用物理学会春季学術講演会
• [Presentation] Valley Hall Effect in Ungated Bilayer Graphene (2019)
  • Author(s): Kareekunnan Afsal, Manoharan Muruganathan, Hiroshi Mizuta
  • Organizer: Recent Progress in Graphene & 2D Materials Research
  • Int'l Joint Research
• [Presentation] Valley Hall Effect in Unbiased Bilayer Graphene (2019)
  • Author(s): Kareekunnan Afsal, Manoharan Muruganathan, Hiroshi Mizuta
  • Organizer: The 21st International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures
  • Int'l Joint Research
• [Presentation] グラフェンナノデバイスによる超高感度環境・生体ガスセンシング技術と熱制御技術の現状と展望 (2019)
  • Author(s): 水田 博, G. Agbonlahor, 宮下 寛也, 古川 篤, F. Liu, M. Haque, 中野 颯也, M. Muruganathan, 槇 恒, 恩田 陽介, 服部 将志, 下舞 賢一, 関根 嘉香
  • Organizer: 北陸産業活性化フォーラム
  • Invited
• [Presentation] グラフェンNEMSとナノイオンビーム加工技術：サブサーマルスイッチング・極限センシング・熱フォノン制御への応用 (2019)
  • Author(s): 水田 博
  • Organizer: 2019年2回極限ナノ造形・構造物性研究会
  • Invited
• [Book] Graphene Nanoelectromechanical Switch: Ultimate Downscaled NEM Actuators to Single-Molecule and Zeptogram Mass Sensors, Convergence of More Moore, More than Moore and Beyond Moore: Materials, Devices, and Nanosystems, Deleonibus, Simon, ed. (2021)
  • Author(s): M. Muruganathan, and H. Mizuta
  • Total Pages: 41
  • Publisher: Jenny Stanford Publishing
  • ISBN: 9789814877121
• [Remarks] グラフェンナノメッシュデバイスを用いたナノスケール熱制御の研究
  • URL: https://www.jaist.ac.jp/ms/labs/mizuta-lab/post-4.html
• [Remarks] Nanoscale thermal engineering
  • URL: https://www.jaist.ac.jp/ms/labs/mizuta-lab/english/post-4.html
• [Remarks] グラフェンナノメッシュデバイスを用いたナノスケール熱制御の研究
  • URL: http://www.jaist.ac.jp/ms/labs/mizuta-lab/post-4.html