Album
Presentation Award
Ms. Mitsuki Yoshimura received the award “第59回 応用物理学会北海道支部学術講演会発表奨励賞”, which was held January 6-7, 2024.
吉村充生, 李 好博, 卞 志平, ジョンアロン, 曲 勇作, 田中秀和, 太田裕道, “LaNiO3薄膜を活性層とする全固体熱トランジスタの作製”, 第59回 応用物理学会北海道支部 / 第20回 日本光学会北海道支部 合同学術講演会, 北海道大学, 札幌市, 2024.1.6 – 7.
HU-PNU Mini Symposium on Functional Materials Science
HU-PNU Mini Symposium on Functional Materials Science was held in RIES, Hokkaido University as the event of the BK21 program at Pusan National University. (January 11th, 2024)
2023
MRM 2023 in Kyoto
We attended the Advanced Materials Research GRAND MEETING, MRM2023 held in Kyoto December 11-16, 2023.
HU-SNU Joint Symposium Satellite Session
We held the 26th HU-SNU Joint Symposium Satellite Session from November 2nd to 3rd.
FMS 2023
It was a wonderful workshop. We attended the FMS 2023 held in Busan, Korea, from June 19th to 22nd.
Business trip to Jiangsu University
Prof. Ohta visited IQST, Jiangsu University on invitation from Prof. Yuqiao Zhang (May 28 – June 1). The ex-students who are doing research in China gathered like a reunion.
Buiness trip to Pusan National University
Ms. Mitsuki Yoshimura (M1) visited Pusan National University on invitation from Prof. Hyoungjeen Jeen (Physics, Pusan National University) for one week (2023.5.16-23).
Farewell party & welcome party
We had a farewell party and a welcome party (2023.4.7). Ms. Hui Yang (Doctoral student at Beijing Jiaotong University), who spent one year as a visiting scholar at the Research Institute for Electronic Science, Hokkaido University, will return to China after completing her research period. Also, as of April 1st, Dr. Ahrong Jeong has joined as a postdoctoral researcher. In addition, Mr. Hikaru Sadahira, Mr. Diwen Chen, and Mr. Ren Mitsuya have joined us.
Dean’s Award for Academic Achievement
Ms. Mitsuki Yoshimura received the Dean’s Award for Academic Achievement, from the School of Engineering, Hokkaido University. The “Dean’s Award” is given to students of the School of Engineering who have excellent academic performance, who are excellent in character, and who are role models for other students. This is a very prestigious award, with one student from each course being awarded to 4th-year undergraduate students.
Ms. Mitsuki Yoshimura
Degree conference ceremony Spring 2023
Degree conference ceremony Spring 2023 has been held. Dr. Binjie Chen received his diploma. Mr. Rui Yu received his Master’s degree. (2023.03.23)
Dr. Binjie Chen
Mr. Rui Yu
Presentation Award
Mr. Yaoming Liu received the award “第58回 応用物理学会北海道支部学術講演会発表奨励賞”, which was held January 7-8, 2023.
Y. Liu, B. Chen, H. Ohta, T. Katayama, “Antiferroic-to-ferroic phase transitions in spin and charge of hexagonal TbFeO3 film”, 第58回応用物理学会北海道支部/第19回日本光学会北海道支部合同学術講演会, 室蘭工業大学（北海道札幌市）, 2023.1.7-8.
The award ceremony, IDW ’22
Outstanding Poster Paper Award
Prashant Ghediya (AMDp1-1)
Electric field thermopower modulation analyses of effective channel thickness of amorphous InGaO3(ZnO)m thin film transistors
Best Student Paper Award
Hui Yang (AMD2-3)
Electric field thermopower modulation analyses of transistor characteristics of high-mobility In-Sn-Zn-O thin film transistors
(Left) Dr. Prashant Ghediya, (Right) Ms. Hui Yang (2023.2.24)
Prof. Hyoungjeen Jeen visit us
Prof. Hyoungjeen Jeen, Dean of the Department of Physics, Pusan National University, South Korea, visited our laboratory (2023.2.14). The photo was taken when Prof. Jeen paid a courtesy visit to Director Ijiro of Research Institute for Electronic Science, Hokkaido University. Until now, we have conducted joint research between two laboratories, exchanged students, and mainly held workshops between two countries, but I hope that we will be able to collaborate on a larger scale in the future.
Left: Prof. Kuniharu Ijiro (Director of RIES), Center: Prof. Hyoungjeen Jeen (Dean of the Department of Physics, Pusan National University), Right: Prof. Hiromichi Ohta (Deputy Director of RIES)
Best Paper Award
Ms. Hui Yang, a Visiting scholar of RIES & Ph.D. candidate received the Best Paper Award at Thin Film Materials & Devices Meeting.
Hui Yang, Yuqiao Zhang, Yasutaka Matsuo, Yusaku Magari, and Hiromichi Ohta, ” Thermopower Modulation Analyses of High-mobility Transparent Amorphous Oxide Semiconductor InSnZnOx Thin-Film Transistors”, 薄膜材料デバイス研究会 第19回研究集会 in 京都, 龍谷大学響都ホール（京都府京都市）, 2022年11月17日-18日.
Hakata on a business trip
January 9th-12th, we participated in the 7th International Conference on Advanced in Functional Materials (AFM 2023) in Hakata.
2022
Poster award
Ms. Hui Yang, a Visiting scholar of RIES & Ph.D. candidate, Beijing Jiaotong University, and Mr. Binjie Chen, a third-year doctoral student, received the Poster Award at The 23rd RIES-Hokudai International Symposium. (2022.12.06)
Hui Yang, Yuqiao Zhang, Yasutaka Matsuo, Yusaku Magari, and Hiromichi Ohta, “Origin of High-Mobility in Transparent Oxide Semiconductor Thin Film Transistors toward Super High-Definition Displays”, The 23rd RIES-Hokudai International Symposium 拓 [Taku], Sapporo, Japan, December 5-6, 2022.
Binjie Chen, Hiromichi Ohta, “Room Temperature Insulator-to-Metal Transition of Strained VO2/TiO2 Multilayered Films
“, The 23rd RIES-Hokudai International Symposium 拓 [Taku], Sapporo, Japan, December 5-6, 2022.
Welcome party
Ms. Ahrong Jeong (Kyushu University) will do research on thermoelectric materials for a week at a Network Joint Research Center for Materials and Devices (Young Scientists Research Program). We welcomed her on the 1st day. (November 28, 2022)
Excellent presentation award
Ms. Hui Yang (Visiting scholar of RIES & Ph.D. candidate, Beijing Jiaotong University) and Ms. Mitsuki Yoshimura (4th year, Undergraduate, Faculty of Engineering, Hokkaido University) received the Excellent Presentation Award from the Ceramics Society of Japan, Tohoku-Hokkaido Branch (November 11, 2022). Ms. Yang joined our laboratory this April and Ms. Yoshimura just began her research this April.
Hui Yang, Yuqiao Zhang, Yasutaka Matsuo, Yusaku Magari, and Hiromichi Ohta, “Thermopower Modulation Analyses of High-mobility InSnZnOx Thin-Film Transistors”, 令和4年度日本セラミックス協会東北北海道支部研究発表会, 伝国の杜（山形県米沢市）, 2022年11月10日-11日
吉村充生, 楊 倩, 卞 志平, ジョヘジュン, 太田裕道, “全固体熱トランジスタに及ぼす固体電解質厚さの影響”, 令和4年度日本セラミックス協会東北北海道支部研究発表会, 伝国の杜（山形県米沢市）, 2022年11月10日-11日.（ポスター）
Kyoto on a business trip
November 17th-18th, we participated in the 19th meeting of the Thin Film Materials and Devices in Kyoto.
Welcome party
Welcome party of Mr. KANG Kungwan was held at an izakaya (2022.10.22)
Group photo for the English press release
(From left to right: Prof. Matsuo, Ms. Hui Yang, Prof. Magari, and Prof. Ohta)
Japan Society of Applied Physics & Birthday Party
The students kindly held the birthday party of the professor, as well as the wrap-up party of the Japan Society of Applied Physics held at Tohoku University Kawauchi Campus (2022.9.21)
Visitor
Profs. Hidekazu Tanaka and Haobo Li visited our laboratory. (2022.8.4)
Degree conference ceremony Spring 2022
Degree conference ceremony Spring 2022 has been held on March 24th, 2022. Ms. Qian Yang received her Ph.D. diploma. Mr. Liao Wu and Mr. Takashi Fujimoto received their master’s degrees. At the same time, Dr. Qian Yang received the Dean’s Award from Prof. Haseyama, dean of Graduate School of Information Science and Technology.
Dr. Qian Yang will be a Lecturer at Jiangsu University, China.
JSAP Young Scientist Presentation Award
Dr. Mian Wei (OG, currently a Lecturer at the School of Materials, Henan University, China) has been awarded the “JSAP Young Scientist Presentation Award“.
M. Wei, L. Gong, R. Yu, H.J. Cho, H. Ohta, T. Katayama, “Single-Crystalline La:SrSnO3 Conductive Sheet with Wide Bandgap of 4.2 eV”, 第82回 応用物理学会秋季学術講演会, online, 2021.9.10-
Two doctoral course students won Otsuka Memorial Award
Ms. Gowoon Kim (Ph.D., September 2021) and Ms. Qian Yang (Ph.D., March 2022) received Otsuka Memorial Award (March 17, 2022). Otsuka Memorial Award is awarded to excellent female students who are willing to be researchers.
Dr. Gowoon Kim
Dr. Qian Yang
After finishing the doctoral course, Dr. Gowoon Kim became the researcher in Samsung Electromechanics. Dr. Qian Yang becomes a Lecturer at Jiangsu University, China. Hope for their further success!
About Otsuka Memorial Award
https://reed.synfoster.hokudai.ac.jp/en/carrer/charange-support/
Matsumoto-Hatori Award
Dr. Xi Zhang won the 51st Matsumoto-Hatori Award, Research Institute for Electronic Science, Hokkaido University (2022.2.14)
2021
Ms. Qian Yang won the Student Award
at The 18th Thin Film Materials & Devices Meeting, which was held online, November 11-12, 2021.
Qian Yang, Joonhyuk Lee, Hyoungjeen Jeen, Hai Jun Cho, and Hiromichi Ohta, “Solid-State Electrochemical Protonation Induced Phase Transition from SrCoO2.5 into HxSrCoO2.5 (x = 1, 1.5 and 2)”, The 18th Thin Film Materials & Devices Meeting, online, November 11-12, 2021.
Degree conference ceremony Fall 2021
Degree conference ceremony Fall 2021 has been held and Dr. Gowoon Kim and Dr. Mian Wei received their diploma. (2021.09.24) Dr. Kim received a diploma as the representative of the Graduate School of Information Science and Technology. At the same time, she received the Dean’s Award.
Dr. Mian Wei will be an Assistant Professor at Henan University, China
AM-FPD ’20 PAPER AWARD
AM-FPD ’20 PAPER AWARD: AMFPD-ECS Japan Section Young Researcher Award, Yugo Takashima, Hokkaido Univ., Japan, “(4-3) Fabrication and Characterization of Ba1/3CoO2 Epitaxial Films Exhibiting Thermoelectric ZT = 0.12 at Room Temperature”, June 29, 2021
Dr. Yuqiao Zhang has promoted
Dr. Yuqiao Zhang, a JSPS Research Fellow, has promoted to a specially appointed professor at Jiangsu University, China (2021.4.13).
After completing the master’s program (supervisor: Professor Bo-Ping Zhang) at the University of Science and Technology Beijing, China, Mr. Zhang studied as a research student at RIES, Hokkaido University for half a year as a research student. He enrolled in the doctoral program at the Graduate School of Information Science and Technology, Hokkaido University. As a result of three years of research on oxide thermoelectric materials, he has made various research achievements which were published in journals including Nature Communications, and after obtaining his doctoral degree at Ohta Lab as the 1st one, he was hired as a JSPS Research Fellow. He will perform a lot of good research at Jiangsu University.
Master’s degree
Mr. Yugo Takashima and Mr. Lizhikun Gong received their master’s degree (information science). Takashima-kun will enter a famous automobile company and Gong-kun go on to doctoral course student as a CSC scholar (2021.3.25)
Matsumoto-Hatori Award
Dr. Yu-Qiao Zhang won the 50th Matsumoto-Hatori Award, Research Institute for Electronic Science, Hokkaido University (2021.2.18)
Online Workshop
Online Workshop of Network Joint Research Center for Materials and Devices, January 27th, 2021 Online (closed)
Group photo (2021.1.22)
2020
Degree conference ceremony Spring 2020
Takaki Onozato received his Ph.D. (2020.3.25).
Presentation Award at The 55th Japan Society of Applied Physics Hokkaido Branch Meeting
Ms. Dou-dou Liang won the Presentation Award at The 55th Japan Society of Applied Physics Hokkaido Branch Meeting, which was held in Hokkaido University, January 11-12, 2020.
Dou-dou Liang, Yu-qiao Zhang, Hai Jun Cho, and Hiromichi Ohta, “Electric field thermopower modulation analyses of the operation mechanism of transparent amorphous SnO2 thin film transistor”, The 55th Japan Society of Applied Physics Hokkaido Branch Meeting, Hokkaido University, January 11-12, 2020.
Lake Placid
12th International Workshop on Oxide Surfaces (IWOX-XII), Jan 5 – 10, 2020, Hosted at Crowne Plaza Lake Placid, NY USA
2019
International Workshop
The 3rd Workshop on Functional Materials Science (2019.12.18-20)
Outside back cover
Image figure of Ms. Qian Yang’s (楊倩) paper has been published in Adv. Mater. Interfaces as the outside back cover (2019.12.6)
MRS Boston
Ms. Gowoon Kim received a poster award nomination at the 2019 MRS Fall Meeting.
Gowoon Kim, Hai Jun Cho, Yu-Miin Sheu, Hiromichi Ohta, “Electrical, optical and thermal transport properties of oxygen deficient amorphous WOx (2.5 < x < 3) films”, 2019 MRS Fall Meeting & Exhibit, Boston, MA, December 1-6, 2019.
The 20th RIES-HOKUDAI International Symposium
Mr. Yugo Takashima (M1) awarded the poster award at The 20th RIES-HOKUDAI International Symposium 稀 (2019.12.3).
Yugo Takashima, Takaki Onozato, Hai Jun Cho, and Hiromichi Ohta, “Thermal conductivity of layered cobalt oxide epitaxial films with different crystallographic orientation”, The 20th RIES-HOKUDAI International Symposium, Hokkaido University, Sapporo, Japan, December 2-3, 2019. (Poster)
Mitacs Award for Outstanding Innovation — International
Dr. Jason Tam (University of Toronto, Professor Uwe Erb group) awarded “Mitacs Award for Outstanding Innovation — International” (November 26th, 2019). He studied with us as the scholar of JSPS Summer Program (2017.6.20-2017.8.21). After that he published the following paper and received his Ph.D degree from University of Toronto.
Jason Tam, Bin Feng, Yuichi Ikuhara, Hiromichi Ohta*, Uwe Erb*, “Crystallographic orientation – surface energy – wetting property relationships of rare earth oxides”, J. Mater. Chem. A 6, 18384-18388 (2018).
Group photo
Group photo (November 27, 2019)
Welcome party
Welcome party (Mr. OKURA, Takuma, Mr. KWON, Youngha, Mr. YOSHIDA, Kengo) + celebration of recent presentation awards (November 22, 2019)
16th Meeting of Thin Film Materials & Devices Meeting
Ms. Dou-dou Liang and Mr. Kenyu Sugo won Student Award at 16th Meeting of Thin Film Materials & Devices Meeting, which was held in Kyoto, November 8-9, 2019.
Ceramics Society of Japan Tohoku-Hokkaido Branch
Award ceremony at 2019 Meeting of the Ceramics Society of Japan Tohoku-Hokkaido Branch (November 9th, 2019). Ms. Qian Yang (right end) awarded the Excellent Presentation Award.
TOEO-11
Ms. Mian Wei won The Best Poster Award (Gold) at 11th International Symposium on Transparent Oxide and Related Materials for Electronics and Optics (TOEO-11), which was held in Nara, October 7-9, 2019.
New Deep-Ultraviolet Transparent Oxide Semiconductor, La-doped SrSnO3
M. Wei1,*, A. Sanchela2, B. Feng3, Y. Ikuhara3, H. Cho1,2, and H. Ohta1,2
1IST-Hokkaido Univ., 2RIES-Hokkaido Univ., 3Univ. Tokyo
11th International Symposium on Transparent Oxide and Related Materials for Electronics and Optics, Oct. 7-9, 2019, Nara, Japan
Welcome party
2019.9.27
Wrap-up party after oral presentations at the JSAP 2019 Fall Meeting held in Hokkaido University
This time, we presented 11 oral talks.
[18p-E214-12] Y. Wu, H.J. Cho, B. Feng, M. Mikami, W. Shin, Y. Ikuhara, K. Saito, and H. Ohta, “Anisotropic Heat Transport of Natural Superlattice Oxide, InGaO3(ZnO)m”
[19a-E307-5] Y. Takashima, T. Onazato, H.J. Cho, and H. Ohta, “Anisotropy of Thermal Conductivity for Epitaxial Films of Layered Oxides”
[19a-E307-6] Yuqiao Zhang, Hai Jun Cho, Kenyu Sugo, Masashi Mikami, Sungmin Woo, Myung-Chul Jung, Woosuck Shin, Woo Seok Choi, Myung Joon Han, and Hiromichi Ohta, “High and Low Thermal Conductivity Phase Boundary in SrTiO3 – SrNbO3 Solid-Solution System”
[19a-E307-7] Kenyu Sugo, Yuqiao Zhang, Hai Jun Cho, Hiromichi Ohta, “Thermoelectric properties of Sr1−xLaxTiO3 solid solution epitaxial films”
[19p-E311-12] G. Kim, H.J. Cho, B. Feng, Y. Ikuhara, H. Ohta, “Electron and heat transports of oxygen deficient WOx (2.83 < x < 3) epitaxial films”
[20p-B31-1] Takaki Onozato, Hai Jun Cho and Hiromichi Ohta, “Fast operation of a WO3-based solid-state electrochromic flexible transistor” 46th Young Scientist Presentation Award
[20p-B31-2] G. Kim, H.J. Cho, Y-M. Sheu, H. Ohta, “Optical, Electrical, and Thermal Transports of Amorphous WOx (2.5 < x < 3) films”
[20p-B31-3] M. Wei, A. Sanchela, B. Feng, Y. Ikuhara, H.J. Cho, H. Ohta, “High Electrical Conducting Deep-Ultraviolet-Transparent Oxide Semiconductor La-Doped SrSnO3 Exceeding ~3000 S cm−1”
[20p-B31-4] Hai Jun Cho, Bin Feng, Takaki Onozato, Mian Wei, Anup V. Sanchela, Yuichi Ikuhara, Hiromichi Ohta, “Investigation of transport property reductions in epitaxial La-doped BaSnO3 films”
[20p-C310-11] Q. Yang, H.J. Cho, H. Jeen, H. Ohta, “Electrochemical Oxidation and Electron Transports of SrCoO2.5 Epitaxial Films”
[20p-C310-12] Q. Yang, H.J. Cho, J. Lee, B. Feng, Y. Ikuhara, H. Jeen, H. Ohta, “Thermopower of Brownmillerite SrCoO2.5 Epitaxial Films Grown on Various Substrates”
Mr. Takaki Onozato won 46th Young Scientist Presentation Award (2019.9.18)
Celebration party for passing the entrance exam
2019.8.30
One day trip
One day trip to Syakotan (Sea urchin donburi & Cape Kamui) and Otaru (Otaru Winery) (July 6th, 2019)
Seminar by Prof. Norbert Koch
Seminar: Prof. Norbert Koch(Humboldt-Universität zu Berlin) http://www-sms2.physik.hu-berlin.de//
Degree conference ceremony Spring 2019
Yu-qiao Zhang received his Ph.D. today (2019.3.25) He attended the graduation ceremony as the representative student and he received an award from the dean of the division of Information Science and Technology.
Matsumoto-Hatori Award
Prof. Hai Jun Cho won 48th Matsumoto-Hatori Award, Research Institute for Electronic Science, Hokkaido University (2019.2.22)
Ski & Snowboad
Enjoyed Skiing & Snowboarding in Sapporo Kokusai Snow Resort (2018.2.18)
Visitor
Prof. Yu-Miin Sheu (National Chiao Tung University, Taiwan) visited our lab. (2019.1.9)
2018
The year-end party
RISTORANTE PIZZERIA Dalsegno (2018.12.26)
19th RIES-Hokudai International Symposium
19th RIES-Hokudai International Symposium held in Jyozankei Hot Spring Spa (2018.12.11-12)
Welcome party
November 16th, 2018
2016
Farewell party
Farewell party of Mr. Sungmin Woo
Mr. Sungmin Woo (16-29, Oct. from SKKU, Korea, Supervisor: Prof. Woo Seok Choi) and Dr. Wunsung Kim (23 Oct.-5 Nov. from SKKU, Korea, Supervisor: Prof. SungWng Kim) visited our lab as a visiting researcher. They measured temperature dependence of thermopower of their thin film samples.
Farewell ceremony of the Secretary
Farewell ceremony of the Secretary, Ms. Yoshida. (30 September, 2016)
Group photo
2016 member (13 May, 2016)
Genghis Khan
Prof. Norbert Koch (Humboldt-Universität zu Berlin, Germany) and Prof. Steffen Duhm (Soochow University, China) visited us (2016.4.1).
Farewell party
Farewell party for Mr. Kenji ENDO and Dr. Shota KATAYAMA (2016.3.24)
Welcome party
Welcome & Farewell Party for Hokkaido University International Students (2016.2.16)
2015
Group photo
2015 member (8 April, 2015)
2014
International Workshop
We organized The 1st Korea-Japan Bilateral Workshop on Functional Materials Science -Thermoelectrics, Spintronics, Low-dimensional Materials, and Soft Matter- in RIES, Hokkaido University on 1st August, 2014.
Workshop date: 1st August, 2014
Workshop venue: RIES, Hokkaido University, N20W10, Kita, Sapporo 001-0020, Japan
Language: English
Farewell party
Farewell party of our postdoc researcher, Dr. Ning Li & “BONENKAI 2013”, which is a party where we say farewell to the past year.(20 Dec. 2013)
Prof. Anke Weidenkaff
Prof. Anke Weidenkaff (Universität Stuttgart) stopped at our laboratory (December 9th, 2013).
1-day tour
We did fly fishing as the lab recreation. We went to Kiroro to see the autumn foliage as well. (6 October, 2013)
Sea urchin bowl tour
Sea urchin bowl tour [Kamui Cape] (30 June, 2013)
RIES festival
RIES festival (8 June, 2013)
Group photo
2013 member (8 April, 2013)
2012
Moving from Nagoya U. to Hokkaido U. (September 2012)
An emergency maintenance of our excimer laser, COMPex 120, has been finished at the end of last year. After that we have started thin film growth. Growth condition of super ITO, ZnO and SrTiO3 has been optimized. (January, 2012)