Faculty Profile for Dr. Yoichi Miyahara

profile photo for Dr. Yoichi Miyahara
Dr. Yoichi Miyahara
Assistant Professor — Physics
RFM 3214
phone: (512) 245-5583

Biography Section

Biography and Education

Dr. Yoichi Miyahara joined the department of physics, Texas State University in January, 2019 as an assistant professor. He is an experimental physicist with electrical and mechanical engineering background. He obtained his Ph.D. in electrical engineering at Waseda University in Tokyo where he worked on the synthesis and tunneling spectroscopy/scanning tunneling microscopy of various transition metal dichalcogenides. He then worked in the department of microengineering at École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland as a research staff where he developed atomic force microscopes which was specifically designed for nanometer scale metrological dimensional measurements. During that period, he was exposed to various aspects of mechatronics instrumentation ranging from optical interferometry to active magnetic control. After he joined the department of physics at McGill University in Montreal as a research associate, he started to work on the development and applications of advanced scanning probe microscopy techniques that are geared toward material property characterization in nanometer scale such as quantum dots, nanoparticles, nanowires and novel energy materials. His research group is currently working on developing new spectroscopic material characterization techniques with nanometer scale spatial resolution based on mechanical detection of relevant signals such as mechanically detected vibrational spectroscopy and electrometry with ultra-high sensitivity.

Research Interests

My research interest is in the development and applications of advanced scanning probe microscopy techniques that are geared toward material property characterization in nanometer scale such as quantum dots, nanoparticles, nanowires and novel energy materials. We are particularly interested in developing new spectroscopic material characterization techniques with nanometer scale spatial resolution based on mechanical detection of relevant signals. Some of the examples are optical spectroscopy and tunneling spectroscopy by force detection.

Selected Scholarly/Creative Work

  • Schumacher, Z., Rejali, R., Cowie, M., Spielhofer, A., Miyahara, Y., & Grutter, P. (2021). Charge carrier inversion in a doped thin film organic semiconductor island. ACS Nano, 15(6), 10377. https://doi.org/10.1021/acsnano.1c02600
  • Schumacher, Z., Rejali, R., Pachlatko, R., Spielhofer, A., Nagler, P., Miyahara, Y., … Gr\"utter, Peter. (2020). Nanoscale Force Sensing of an Ultrafast Nonlinear Optical Response. Proceedings of the National Academy of Sciences of the United States of America, 117(33), 19773. https://doi.org/10/ghdqg8
  • Roy-Gobeil, A., Miyahara, Y., Bevan, K. H., & Grutter, P. (2019). Fully Quantized Electron Transfer Observed in a Single Redox Molecule at a Metal Interface. Nano Letters, 19(9), 6104–6108. https://doi.org/10.1021/acs.nanolett.9b02032
  • Zhang, Y., Miyahara, Y., Derriche, N., Yang, W., Yazda, K., Capaldi, X., … Reisner, W. (2019). Nanopore Formation via Tip‐Controlled Local Breakdown Using an Atomic Force Microscope. Small Methods, 3(7), 1900147. https://doi.org/10.1002/smtd.201900147
  • Miyahara, Y., Roy-Gobeil, A., & Grutter, P. (2017). Quantum state readout of individual quantum dots by electrostatic force detection. Nanotechnology, 28(6), 064001. https://doi.org/10.1088/1361-6528/aa5261

Selected Grants

  • Miyahara, Yoichi. MRI:Development of a scanning single-electron box electrometer microscope for studying quantum electronic devices and quantum materials, National Science Foundation, Federal, $600000. (Submitted: January 19, 2021, Funded: September 1, 2021 - August 31, 2023). Grant.
  • Betancourt, Tania (Principal), Brittain, William J (Co-Principal), Irvin, Jennifer A (Co-Principal), Theodoropoulou, Nikoleta (Co-Principal), Martin, Benjamin (Co-Principal), Rhodes, Christopher Peter (Co-Principal), Wistey, Mark A (Co-Principal), Miyahara, Yoichi (Co-Principal), Kerwin, Sean Michael (Co-Principal). TxState-UT PREM Center for Intelligent Materials Assembly (CIMA), National Science Foundation, Federal, $3822000. (Funded: July 1, 2021 - June 30, 2027). Grant.
  • Miyahara, Yoichi (Principal). NSF-CAREER: Characterization of quantum dot qubits by scannable mechanical resonator, National Science Foundation, Federal, $503079. (Submitted: August 3, 2020, Funded: February 1, 2021 - January 31, 2026). Grant.
  • Miyahara, Yoichi (Principal). Charge transfer through individual DNA molecules measured by mechanically detected electric charge sensing, Texas State University, $8000. (Submitted: October 19, 2019, Funded: January 2020 - Present). Grant.
  • Zakhidov, Alexander (Principal), Beall, Gary W, Mix, Kenneth D, Miyahara, Yoichi, Jin, Tongdan. Practical Flexible Solar Cells, MWI. Team Solar-Flex, Texas State University, $10000. (Submitted: March 8, 2019). Grant.

Selected Service Activities

Ad-hoc reviewer
Reviwer of limited submission projects for NSF-MRI
October 26, 2021-Present
Principal
Austin Japanese School
June 1, 2020-Present
Reviewer / Referee
Sensors and Actuators A
2003-Present
Reviewer / Referee
National Science Foundation
October 14, 2021-October 15, 2021
Reviewer / Referee
Physical Review B
October 2020-October 2020