Waseda Institute for Advanced Study (WIAS)Waseda University

Name

OMINATO, Yuya

Degree

Doctor of Science

Status

Assistant Professor

HP (URL)

https://sites.google.com/site/yuyaphys

Research Topic

Theoretical research on transport phenomena of spin and orbital angular momentum in composite atomic layer materials

Recent developments in film deposition technology have made it possible to create various atomic layer materials (two-dimensional materials with a film thickness of one to several atoms). Atomic layer materials have many unique properties not found in conventional materials and are the subject of intensive research. The physical properties of atomic layer materials change qualitatively depending on the number of layers and the stacking of different atomic layer materials. Therefore, many new phenomena and functionalities are expected to be discovered by combining various atomic layer materials, which is of great interest from the two viewpoints of fundamental science and device applications. Our study aims to theoretically predict the physical phenomena that serve as a mechanism to control the rotational motion (spin and orbital angular momentum) of electrons in atomic layer materials and to propose a principle of operation for next-generation devices.

Monthly Spotlight

[Monthly Spotlight] is focusing on a researcher to introduce his/her research.
Proposals for New Operating Principles in Next-Generation Devices

Education and Academic Employment

Education

Academic Employment

Fields of Research Interests

Materials science, Condensed matter physics, Solid-state physics, Transport phenomena

Academic Publications

• Ominato, A. Yamakage, and M. Matsuo, Anisotropic superconducting spin transport at magnetic interfaces, Physical Review B 106, L161406 (2022)
• Ominato, D. Oue, and M. Matsuo, Valley transport driven by dynamic lattice distortion, Physical Review B 105, 195409 (2022)
• Ominato, A. Yamakage, T. Kato, and M. Matsuo, Ferromagnetic resonance modulation in d-wave superconductor/ferromagnetic insulator bilayer systems, Physical Review B 105, 205406 (2022)
• Ominato and M. Matsuo, Quantum Oscillations of Gilbert Damping in Ferromagnetic/Graphene Bilayer Systems, Journal of the Physical Society of Japan 89, 053704 (2020)
• Ominato, J. Fujimoto, and M. Matsuo, Valley-Dependent Spin Transport in Monolayer Transition-Metal Dichalcogenides, Physical Review Letters 124, 166803 (2020)
• Ominato, A. Yamakage, and K. Nomura, Phase Diagram of a Magnetic Topological Nodal Semimetal: Stable Nodal Line in an Easy-Plane Ferromagnet, Journal of the Physical Society of Japan 88, 114701 (2019)
• Ominato, S. Tatsumi, and K. Nomura, Spin-orbit crossed susceptibility in topological Dirac semimetals, Physical Review B 99, 085205 (2019)
• Ominato and K. Nomura, Electric Polarization in Magnetic Topological Nodal Semimetal Thin Films, Condensed Matter 3, 43 (2018)
• Kobayashi, Y. Ominato, and K. Nomura, Helicity-Protected Domain-Wall Magnetoresistance in Ferromagnetic Weyl Semimetal, Journal of the Physical Society of Japan 87, 073707 (2018)
• Ominato and K. Nomura, Spin susceptibility of three-dimensional Dirac-Weyl semimetals, Physical Review B 97, 245207 (2018)
• Ominato, K. Kobayashi, and K. Nomura, Anisotropic magnetotransport in Dirac-Weyl magnetic junctions, Physical Review B 95, 085308 (2017)
• Ominato and M. Koshino, Magnetotransport in Weyl semimetals in the quantum limit: Role of topological surface states, Physical Review B 93, 245304 (2016)
• Ominato and M. Koshino, Quantum transport in three-dimensional Weyl electron system in the presence of charged impurity scattering, Physical Review B 91, 035202 (2015)
• Ominato and M. Koshino, Quantum transport in a three-dimensional Weyl electron system, Physical Review B 89, 054202 (2014)
• Ominato and M. Koshino, Orbital magnetism of graphene nanostructures, Solid State Communications 175, 51 (2013)
• Ominato and M. Koshino, Orbital magnetism of graphene flakes, Physical Review B 87, 115433 (2013)
• Ominato and M. Koshino, Orbital magnetic susceptibility of finite-sized graphene, Physical Review B 85, 165454 (2012)

Other Interests

Driving

Affiliated Academic Organizations

The Physical Society of Japan

Awards

Jan. 2021 Annual performance, top one in UCAS
Jan. 2022 Annual performance, outstanding (top twenty percent) in KITS
Nov. 2022 The 2022 KITS postdoc fellowship