PORTFOLIO
Functional nanomaterials labratory
Recent activities
2024.1.9-10
Joined a two-days CREST/Presto camp for "Exploring Innovative Materials in Unknown Search Space" at Shonan village center
2024.1.1
Happy new year. Follow your intuition.
2023.12.23
A new paper entitled "Soft Magnetostrictive Materials: Enhanced Magnetostriction of Fe‐Based Nanocrystalline Alloys via Ga Doping" as a co-auther in
Scripta Materialia 242 (2024), 115956 is available online.
2023.10.26
Published a new paper entitled "Visualization of the Magnetostriction Mechanism in Fe-Ga Alloy Single Crystal Using Dimensionality Reduction Techniques" as a co-auther in
IEEE Transactions on Magnetics, (2023), 59, 11.
2023.9.27-29
Oral presentation entitled "Towards Sustainable Cooling: Elastocaloric Effects and Phase Transition Characteristics of Superelastic Ni-Ti Alloys" at the session of Development of Mechanics of Functional Materials and Structures toward Sustainable Society at M&M2023 conference at Tsukuba University.
2023.9.1
Published a new paper as "Research in the U.S. during the COVID-19 Pandemic" in the Ceramics 'Crossroad', by the Japanese Society of Ceramics, Volume 58, Issue 9, 2023 (September 1, 2023).
2023.9.1
Published a review new paper as "Combinatorial Synthesis of Highly Corrosion-Resistant Nanocrystalline Alloys," in the "Materia" by The Japan Institute of Metals and Materials, Volume 62, Issue 9, 2023, pp. 600-605.
2023.8.7
Published a new paper as a co-auther entitled "Origin of negative anisotropic magnetoresistance effect in Fe0.75Co0.25 single-crystal thin films upon Ir addition" in
Physical Review Materials, 7 (2023) 084401.
2023.7.17-20
Attended JAFOE (Japan Association of the Foundations of Engineering) 2023 as a general participant and presented our research entitled "Sustainable energy harvesting using functional magnetic materials"
2023.7.15
Published a new paper as a co-auther entitled "Strain measurement based on Magnetic Barkhausen noise for thin films" in Microelectronic Engineering, 279 (2023) 112057.
2023.4.28
Published a new paper as the first auther entitled "Tuning the Temperature Range of Superelastic Ni-Ti Alloys for Elastocaloric Cooling via Thermal Processing" in Journal of Physics: Energ, 5 (2023) 024020.
2023.2.28
Awarded a JSPS Grant-in-Aid for Early-Career Scientists (2nd) with a title of Designing magnetic heterostructures with tunable magnetoelastic coupling (No. 23K13636).
2022.11.22
Keynote speech, "Design of large and sensitive magnetostrictive composites for vibration energy harvesters" at international symposium,
"Integrated Nanocomposites for Thermal and Kinetic Energy Harvesting (INTAKE) Seminar 2022".
2022.10.01
Started JST ACT-X project,
"Iron-loss analysis of nanocrystalline magnetostrictive composite using magnetic Barkhausen noise" for 2.5 yrs.
2022.8.10
Newly opened my new website. Still some pages are under construction.
2022.4.1
Started new position, project assisitant professor at Tokyo University of Science
Assigned to JST CREST project (Head: Dr. Iwasaki), "Exploring Innovative Materials in Unknown Search Space"
Assigned to MEXT power electric project (Head: Prof. Okamoto), "Creation of ultra-low-loss magnetic materials"
2022.3.7
Returned to Japan from College Park, US.
2021.4.6
Started visiting researcher at University of Maryland, College Park, US
2020.4.1
Awarded a JSPS Grant-in-Aid for Early-Career Scientists
2019.4.1
Started as a JSPS postdoctoral fellow at Nagoya University
2019.3.26
Recieved Ph.D. degree in Materials Science and Engineering from Yokohama National University
2016.7.1
Awarded a Toden memorial fellowship
2016.3.31
Finished Master's program at Yokohama National University
2014.3.31
Finished Bachelor's program at Yokohama National University
2009.3.31
Graduated from Chigusa high school, Aichi
Introduction
Brief biography
tyamazaki, Ph.D. is an adjunct assistant professor at Tokyo University of Science with an academic mission of multi-scale design for high-performance magnetic materials. He specializes in magnetic analysis using machine learning and synchrotron radiation. In 2019, He received his Ph.D. in Materials Science and Engineering from Yokohama National University, where his research focused on magnetostrictive materials with a new metallographic analysis using magnetic Barkhausen noise. As a JSPS Postdoctoral researcher for three years at Nagoya University, Japan, and the University of Maryland, US, he developed a measurement method combining his magnetic analysis technique, combinatorial thin-film synthesis, and machine learning algorithm. He currently leads his research of magnetic Barkhausen noise analysis and new nanocrystalline magnetic materials supported by the JSPS KAKENHI for Young Scientists since April 2020 and the JST ACT-X since October 2022.
Research area / keywords
My research mission is to design, model, develop the high-performance magnetic functional materials such as soft/ hard magnets, multi-ferroic materials, magnetoelastic materials and ferromagnetic shape memory alloys.
- Solid-state physics
- Magnetism
- Materials science and engineering
- Nanotechnology
- Magnetic domain/ microstructure
- Sintered alloys/ Thin films/ nanoparticles
- soft/hard magnets
- Synchrotron X-ray analysis
- Micromagnetic simulation
- Interpretable & unsupervised Machine learning
- Persistent homology
E-mail to me
takahiro.yamazaki (at) rs.tus.ac.jp | rd070672 (at) gmail.com
Skills
Hard skills
- Magnetron sputtering
- Wet mixing method
- Photolithography
- Wafer process
- SEM
- EBSD
- TEM
- FIB
- SQUID
- VSM
- XRD
- AFM
- 3D printer
- SPring-8/KEK
- XAFS/EXAFS
- XMCD
Soft skills
- VAPS
- Wien2k
- Quantum espresso
- AkaiKKR
- Mumax3
- OOMMF
- Ubermag
- COMSOL
- Wien2k
- Quantum espresso
- AkaiKKR
- Solidworks
- Linux/Ubuntu
- Python
- C++
- HTML/PHP
- CSS
- Markdown
- Git
- VSCode
- OriginPro
- ImageJ
- Notion
- Illustrator
Work experiences
-
Oct. 2022 - Mar. 2025:
Project researcher (JST CREST/INNOPEL)
Department of Materials Science and Technology, Tokyo University of Science, Japan (Prof. Kotsugi)
- Theme: Machine learning-based analysis for low-loss soft magnets -
Jul. 2021 - Present:
Visiting Researcher
Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science (NIMS) (Group leader: Dr. T. Ohkubo) -
Apr. 2022 - Mar. 2027:
Project assistant professor
Department of Materials Science and Technology, Tokyo University of Science, Japan (Prof. Kotsugi)
- Theme (my own): Design of multifunctional nanocrystalline composites
- Theme (JST CREST): Exploring Innovative Materials in Unknown Search Space
- Theme (MEXT Power.elect.): Creation of ultra-low-loss magnetic materials -
Apr. 2021 - present:
Postdoctoral/visiting Researcher
Department of Materials Science and Engineering, the University of Maryland, College Park, US (Prof. Takeuchi)
- Theme: Microstructural improvement for NiTi elastocaloric alloys -
Apr. 2019 - Mar. 2022:
JSPS research fellowship (PD)
Department of Micro-Nano Mechanical Science and Engineering, Nagoya University, Japan (Prof. Hata)
- Theme: Conbinatorial synthesis of magnetic thin films
Education
-
Apr. 2016 - Mar. 2019:
Ph.D. in Materials Science
- Department of Materials Science and Engineering, Yokohama National University, Japan
- Supervised by Prof. Wataru Nakao
- Thesis: Magnetic Barkhausen noise in FeCo magnetostrictive alloys -
Apr. 2014 - Mar. 2016:
MA in Physics
- Department of Physics, Electrical and Computer Engineering, Yokohama National University, Japan
- Supervised by Prof. Yuko Ichiyanagi
- Thesis: Magnetic hyperthermia using magnetic nanoparticles -
Apr. 2010 - Mar. 2014:
BA in Physics
- Department of Physics, College of Engineering, Yokohama National University, Japan
- Supervised by Prof. Masatomo Uehara
- Thesis: Doping effect on the new delafossite-type superconductors
Professional Memberships
Current Membership
- The Magnetics Society of Japan (MSJ)
- The Japan Society of Mechanical Engineers (JSME)
- The Iron and Steel Institute of Japan (ISIJ)
Past Membership
- The Physical Society of Japan (JPS)
- Japan Society of Applied Physics (JSAP)
- The Society of Nano Science and Technology