English / Japanese


Suguru Ito

Institute for Solid State Physics, University of Tokyo
Prof. Iwao Matsuda group
Ph.D. candidate (2nd grade)

[Contact]
277-8581
A551, Institute for Solid State Physics, 5-1-5, Kashiwanoha, Kashiwa, Chiba, Japan
Phone: +81(0)4-7136-3403
E-mail: s-ito<at>issp.u-tokyo.ac.jp


Education
March 2016: 
Master of Science, Department of Physics, University of Tokyo
• Supervisor: Prof. Iwao Matsuda
• Thesis title: "Studying electronic changes of quantum-well states and surface states of a ultrathin Bi film on the Ge substrate by surface modifications"
March 2014: 
Bachelor of Science, Department of Physics, University of Tokyo


Employment
April 2017 - Present:
Japan Society for the Promotion of Science (JSPS) Research Fellowship for Young Scientists, DC2
April 2014 - Present: 
Advanced Leading Graduate Course for Photon Science (ALPS) fellowship


Grants
[1] Grant-in-Aid for JSPS Research Fellow (No. 17J03534) April 2017 - March 2019
from Japan Society for the Promotion of Science (JSPS)


Publications
[5] S. Ito, B. Feng, M. Arita, T. Someya, W.-C. Chen, A. Takayama, T. Iimori, H. Namatame, M. Taniguchi, C.-M. Cheng, S.-J. Tang, F. Komori, I. Matsuda
"Alkali-metal induced band structure deformation investigated by angle-resolved photoemission spectroscopy and first-principles calculation"

[4] Baojie Feng, Jin Zhang, Suguru Ito, Masashi Arita, Cai Cheng, Lan Chen, Kehui Wu, Fumio Komori, Osamu Sugino, Koji Miyamoto, Taichi Okuda, Sheng Meng, Iwao Matsuda
"Discovery of 2D Anisotropic Dirac Cones"
Advanced Materials 30, 1704025 (2018).

[3] Baojie Feng, Botao Fu, Shusuke Kasamatsu, Suguru Ito, Peng Cheng, Cheng-Cheng Liu, Ya Feng, Shilong Wu, Sanjoy K Mahatha, Polina Sheverdyaeva, Paolo Moras, Masashi Arita, Osamu Sugino, Tai-Chang Chiang, Kenya Shimada, Koji Miyamoto, Taichi Okuda, Kehui Wu, Lan Chen, Yugui Yao, Iwao Matsuda
"Experimental realization of two-dimensional Dirac nodal line fermions in monolayer Cu2Si"
Nature Communications 8, 1007 (2017).

[2] S. Ito, B. Feng, M. Arita, A. Takayama, R.-Y. Liu, T. Someya, W.-C. Chen, T. Iimori, H. Namatame, M. Taniguchi, C.-M. Cheng, S.-J. Tang, F. Komori, K. Kobayashi, T.-C. Chiang, I. Matsuda
"Proving Nontrivial Topology of Pure Bismuth by Quantum Confinement"
• Selected as Editors' Suggestion
• Featured in Research Highlights of Nature Physics (Nature Physics 13, 8 (2017), "Bismuth: Not a trivial matter")

[1] Sh. Yamamoto, M. Taguchi, T. Someya, Y. Kubota, S. Ito, H. Wadati, M. Fujisawa, F. Capotondi, E. Pedersoli, M. Manfredda, L. Raimondi, M. Kiskinova, J. Fujii, P. Moras, T. Tsuyama, T. Nakamura, T. Kato, T. Higashide, S. Iwata, S. Yamamoto, S. Shin, I. Matsuda
“Ultrafast spin-switching of a ferromagnetic alloy at room temperature traced by resonant magneto-optical Kerr effect using a seeded free electron laser” 


Honors
October 25th, 2017:
Best Poster Award, The 8th International Symposium on Surface Science (ISSS-8)
September 22th, 2017:
Student poster ward (division 9), Japanese Physical Society (JPS) autumn meeting
August 27th, 2017: 
IUVSTA-ELESEVIER Student Award, The 33th European Conference on Surface Science (ECOSS-33)
June 16th, 2017: 
Young Researcher Poster Award, The 10th International conference on Ultrafast Surface Dynamics (USD10)
March 14th, 2017: 
DCMP Graduate Student Travel Award, American Physical Society (APS) March Meeting 2017
April 9th, 2016:
Student poster award, The 1st meeting of the Surface Science Society of Japan Kanto office
February 25th, 2016:
Student presentation award, The 35th meeting of The Surface Science Society of Japan


Presentations
(First / presenting author only)
International conferences
(Oral)
[4] Suguru Ito, Masashi Arita, Wei-Chuan Chen, Hirofumi Namatame, Masaki Taniguchi, Cheng-Maw Cheng, Shu-Jung Tang, Fumio Komori, Iwao Matsuda
"Direct observation of a semimetal-to-semiconductor transition in bismuth thin films"
The 8th International Symposium on Surface Science (ISSS-8), Tsukuba, Japan, October 2017

[3] Suguru Ito, Baojie Feng, Masashi Arita, Akari Takayama, Ro-Ya Liu, Takashi Someya, Wei-Chuan Chen, Takushi Iimori, Hirofumi Namatame, Masaki Taniguchi, Cheng-Maw Cheng, Shu-Jung Tang, Fumio Komori, Katsuyoshi Kobayashi, Tai-Chang Chiang, Iwao Matsuda
"Solving mysteries in pure bismuth by quantum confinement"
 The 33th European Conference on Surface Science (ECOSS-33), Szeged, Hungary, August 2017

[2] Suguru Ito, Baojie Feng, Masashi Arita, Akari Takayama, Ro-Ya Liu, Takashi Someya, Wei-Chuan Chen, Takushi Iimori, Hirofumi Namatame, Masaki Taniguchi, Cheng-Maw Cheng, Shu-Jung Tang, Fumio Komori, Katsuyoshi Kobayashi, Tai-Chang Chiang, Iwao Matsuda
"Proving nontrivial topology of pure bismuth by quantum confinement"
American Physical Society (APS) March Meeting 2017, New Orleans, USA, March 2017

[1] S. Ito, B. Feng, M. Arita, A. Takayama, T. Someya, W.-C. Chen, C.-M. Cheng, C.-H. Lin, S. Yamamoto, T. Iimori, H. Namatame, M. Taniguchi, S.-J. Tang, F. Komori, K. Kobayashi, I. Matsuda
“Study of topology in pure Bi by high-resolution angle-resolved photoemission spectroscopy of Bi thin films on the Ge substrate”
20th International Vacuum Congress (IVC-20), Busan, Korea, August 2016

(Poster)
[1] Suguru Ito, Yukiaki Ishida, Susumu Yamamoto, Shik Shin, Iwao Matsuda
"Photo-induced ultrafast potential shift observed at a metal-semiconductor interface of a Bi thin film"
The 10th International conference on Ultrafast Surface Dynamics (USD10), Inzell, Germany, June 2017

International workshop / symposium / seminar
(Oral)
[1] Suguru Ito
"Revealing electronic properties of semimetal bismuth via the systematic modulation on the nanoscale"
Special seminar of SFB 1083, Philipps-Universität Marburg, Marburg, Germany, February 2018

(Poster)
[1] Suguru Ito, Baojie Feng, Masashi Arita, Akari Takayama, Ro-Ya Liu, Takashi Someya, Wei-Chuan Chen, Takushi Iimori, Hirofumi Namatame, Masaki Taniguchi, Cheng-Maw Cheng, Shu-Jung Tang, Fumio Komori, Katsuyoshi Kobayashi, Tai-Chang Chiang, Iwao Matsuda
"Proving nontrivial topology of pure bismuth by quantum confinement"
 Tsinghua University - the University of Tokyo Joint Symposium on Multidiscipline, Beijing, China, April 2017

Domestic conferences (in Japanese)
(Oral)
[5] S. Ito, B. Feng, M. Arita, A. Takayama, T. Someya, W.-C. Chen, C.-M. Cheng, C.-H. Lin, S. Yamamoto, T. Iimori, H. Namatame, M. Taniguchi, T.-C. Chiang, S.-J. Tang, F. Komori, K. Kobayashi, I. Matsuda
"Revealing Bi topology by high-resolution ARPES on quasi-three-dimensinal Bi thin films"
JPS 2016 autumn meeting, 13aAG-6, Kanazawa University, September 2016

[4] Suguru Ito, Yukiaki Ishida, Susumu Yamamoto, Shik Shin, Iwao Matsuda
"Ultrafast relaxation of interface photo voltage and electronic populations in Bi thin film on Ge(111) substrate: time-resolved ARPES"
JPS 2016 annual meeting, 19aBP-9, Tohoku-Gakuin University, March 2016

[3] S. Ito, T. Someya, W.-C. Chen C.-M. Cheng, C.-H. Lin, T. Iimori, B.-J. Feng, A. Takayama, F. Komori, S.-J. Tang, I. Matsuda
"Electron doping and surface potential modulation in K-adsorbed Bi(111) thin film"
The 29th annual meeting of the Japanese Society for Synchrotron Radiation Research, Kashiwanoha Conference Center, January 2016

[2] Suguru Ito, Takashi Someya, Wei-Chuan Chen, Cheng-Maw Cheng, Chung-Huang Lin, Takushi Iimori, Bao-Jie Feng, Akari Takayama, Fumio Komori, Shu-Jung Tang, Iwao Matsuda
"Effects of K adsorption on surface states and quantum well states of Bi thin film"
The 35th meeting of The Surface Science Society of Japan, 1Hp01S, Tsukuba International Congress Center, December 2015

[1] S. Ito, T. Someya, W. C. Chen, C. M. Cheng, C. H. Lin, T. Iimori, B. J. Feng, A. Takayama, F. Komori, S. J. Tang, I. Matsuda 
"The effect of K deposition on Bi/Ge(111) thin films observed by angle-resolved photoelectron spectroscopy"
JPS 2015 autumn meeting, 13aAG-6, Kansai University, September 2015

(Poster)
[3] S. Ito, B. Feng, M. Arita, T. Someya, A. Takayama, W.-C. Chen, T. Iimori, H. Namatame, M. Taniguchi, C.-M. Cheng, S.-J. Tang, F. Komori, I. Matsuda  
"Deformation of band structures via surface electron doping from adsorbed alkali-metal atoms"
 JPS 2017 autumn meeting, 21pPSB-8, Iwate University, September 2017

[2] S. Ito, T. Someya, B.-J. Feng, W.-C. Chen, C.-M. Cheng, M. Arita, A. Takayama, C.-H. Lin, T. Iimori, S. Yamamoto, H. Namatame, M. Taniguchi, F. Komori, S.-J. Tang, I. Matsuda
"Electron doping and surface potential deformation caused by alkali-metal adsorption on Bi thin films"
The 1st meeting of the Surface Science Society of Japan Kanto office, P017S, University of Tokyo, April 2016

[1] Suguru Ito, Toru Hirahara, Dong Yoon Shin, Satoru Ichinokura, Iwao Matsuda, Shuji Hasegawa 
"STM observation of two types (hex/rect) of In/Si(111)-√7×√3 surface superstructures"
JPS 2014 autumn meeting, 9pPSA-84, Chubu University, September 2014