Researcher Database

（Last updated : 2023-01-15 21:36:35）

TAKIZAWA MASARU

Department / Course College of Science and Engineering Department of Physical Sciences

Title / Position Professor

Other Affiliations
1.	Research Organization of Science and Technology SR Center
2.	Graduate School of Science and Engineering

Academic background
1.	～2008/03	Doctorial Course │ Department of Physics │ School of Science │ The University of Tokyo │ Completed
2.	2008 Degree Acquisition	│ The University of Tokyo Ph.D. (Science)
3.	～2003/03	Department of Physics │ School of Science │ The University of Tokyo │ Graduated

Business career
1.	2019/04/01	Professor │ Department of Physical Sciences, Faculty of Science and Engineering, │
2.	2015/04/01 ～ 2019/03/31	Associate Professor │ Department of Physical Sciences, Faculty of Science and Engineering, │
3.	2013/04/01 ～ 2015/03/31	Assistant Professor │ Department Physical Sciences,Faculty of Science and Engineering │
4.	2008/04/01 ～ 2013/03/31	postdoctoral fellow │ Research Organization of Science and Engineering │ Ritsumeikan University

Research activities
1.		The Japan Society of Applied Physics
2.		The Surface Science Society of Japan
3.		The Physical Society of Japan
4.		The Japanese Society for Synchrotron Radiation Research

Subject of research
1.	Synchrotron-radiation excitation physics

Research summary
Synchrotron-radiation excitation physics We are exploring functional materials through atomic-orbital-controlled excitation by synchrotron radiation (SR) in the SR Center. SR is very powerful light ranging from infrared light to ultraviolet light to x-ray. At the SR center in this campus, we easily access this useful light. Selecting an appropriate light through a beam line from SR, an element-specific excitation is realized, such as C, N, O in organic materials, Si in semiconductors, Mn, Fe, Co, Ni in magnetic devices, and so on. So, we can obtain the information of the element we want to know in the functional materials. In addition, a polarization of SR light leads to an atomic-orbital-specific excitation. This enables us to know the orientation of the functional atomic-orbital.

Present specialized field
Condensed matter physics I, Condensed matter physics II (Keyword：synchrotron radiation photoelectron spectroscopy, X-ray absorption spectroscopy, electronic state analysis, chemical state analysis, atomic orbital analysis, molecular orientation analysis)

Papers
1.	2022/12	Improvement in the polishing characteristics of titanium-based materials using electrochemical mechanical polishing │ Surf. Interfaces │ 35,pp.102490-1-10 (Co-authored)
2.	2021/10	Electronic state changes of Cu nanoparticles on rutile TiO₂(110) by O₂ and CO exposure │ J. Electron Spectrosc. Relat. Phenom. │ 252,pp.147123-1-5 (Co-authored)
3.	2021/02	Evaluating influences of impurities on hydrogen production in the reaction of Si with water using Si sludge │ Int. J. Hydrogen Energy │ 46,pp.7722-7732 (Co-authored)
4.	2020/01	Non-chemical fluorination of hexagonal boron nitride by high-energy ion irradiation │ Nanotechnology │ 31,pp.125705-1-9 (Co-authored)
5.	2019/05	Growth of graphene on SiO₂ with hexagonal boron nitride buffer layer │ Appl. Surf. Sci. │ 475,pp.6-11 (Co-authored)
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Academic conference presentation
1.	2022/09	Electronic state analysis of Li metal surfaces (The 22nd International Vacuum Congress IVC-22)
2.	2021/12	Chemical state analysis of diamond surface polished by Ultraviolet-Ray Aided Machining (The 9th International Symposium on Surface Science)
3.	2021/12	Formation of Si-hydroxide during Si-water reaction (The 9th International Symposium on Surface Science)
4.	2021/11	Growth mode and electronic state analyses of Cu nanoparticles on HOPG surfaces (The 9th International Symposium on Surface Science)
5.	2019/10	Chemical state analysis of oxidizing graphene on porous alumina (12th International Symposium on Atomic Level Characterizations for New Materials and Devices '19)
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