Member

Professor
OHTA, Hiromichi (太田 裕道)
hiromichi.ohta(at)es.hokudai.ac.jp hiromichi.ohta1971(at)gmail.com

Room: (N20W10, Sapporo) Research Institute for Electronic Science 3F 03-108-2
TEL & FAX: +81-11-706-9428
keywords: Oxide thermoelectrics, Transparent oxide semiconductor devices, Electric field thermopower modulation, Solid state electrochemical devices, Thermal transistors
orcid0000-0001-7013-0343

Materials Science

PROFILE
Associate Professor
KATAYAMA, Tsukasa (片山 司)
katayama(at)es.hokudai.ac.jp

Room: Research Institute for Electronic Science 3F 03-108-1
TEL & FAX: +81-11-706-9430
keywords: Multiferroics, Flexible oxide thin films, Ferroelectric oxide thin films
orcid0000-0003-2010-3966

PROFILE
Assistant Professor
MAGARI, Yusaku (曲 勇作)
magari.yusaku(at)es.hokudai.ac.jp

Room: (N20W10, Sapporo) Research Institute for Electronic Science 3F 03-107
TEL & FAX : 011-706-9432
keywords: Oxide semiconductors, thin film transistors, flexible devices, Schottky devices
orcid0000-0001-9655-4283

PROFILE
Postdoctoral Research Fellow
JEONG, Ahrong
ahrong.jeong(at)es.hokudai.ac.jp

Room: Research Institute for Electronic Science 3F 03-106
TEL: +81-11-706-9433 / FAX: +81-11-706-9432
keywords: Functional oxide materials, Thermoelectrics, TEM, Film materials, Solid-state electrochemical thermal transistors
orcid0000-0002-8040-7331

PROFILE
Administrative Assistant (Secretary)
OZAKI, Mamiko (尾﨑 麻美子)
mamiko.ozaki(at)es.hokudai.ac.jp

Room: Research Institute for Electronic Science 3F 03-107

TEL: +81-11-706-9431

Ph. D student 5th (China Scholarship Council)
WU, Yuzhang (呉 宇璋)
wuyz1913(at)foxmail.com

Room: Research Institute for Electronic Science 3F 03-106
TEL: +81-11-706-9433 / FAX: +81-11-706-9432
keywords: Transparent oxide semiconductor devices, Electric field thermopower modulation
orcid0000-0002-6173-4994

PROFILE
Ph. D student 3rd (Hokkaido University DX Doctoral Fellowship)
BIAN, Zhiping (卞 志平)
bianzhiping96(at)gmail.com

Room: Research Institute for Electronic Science 3F 03-106
TEL: +81-11-706-9433 / FAX: +81-11-706-9432
keywords: Solid-state electrochemical thermal transistors
orcid0000-0002-8958-5783

PROFILE
Ph. D student 2nd (Hokkaido University DX Doctoral Fellowship)
KANG, Kungwan (강경완)
kkwjjang2(at)gmail.com

Room: Research Institute for Electronic Science 3F 03-106
TEL: +81-11-706-9433 / FAX: +81-11-706-9432
keywords: Oxide single crystals, Thermoelectrics
orcid0000-0001-5547-8034

PROFILE
Ph. D student 1st (Hokkaido University DX Doctoral Fellowship)
ZHOU, Weikun(周 瑋琨 )
zhouweikun1998(at)gmail.com

Room: Research Institute for Electronic Science 3F 03-106
TEL: +81-11-706-9433 / FAX: +81-11-706-9432
keywords: Flexible oxide thin films
orcid0000-0002-5350-4953

PROFILE
Master's student 2nd
YOSHIMURA, Mitsuki (吉村 充生)
yoshimura.mitsuki.a9(at)elms.hokudai.ac.jp

Room: Research Institute for Electronic Science 3F 03-106
TEL: +81-11-706-9433 / FAX: +81-11-706-9432
keywords: Solid-state electrochemical thermal transistors
orcid0009-0005-2233-7063

PROFILE
  • MARUNOUCHI, Ko
    MARUNOUCHI, Ko
    Master's student 2nd
  • SADAHIRA, Hikaru
    SADAHIRA, Hikaru
    Master's student 1st
  • CHEN, Diwen
    CHEN, Diwen
    Master's student 1st
  • MITSUYA, Ren
    MITSUYA, Ren
    Master's student 1st
  • Shoma Akatsuka
    Shoma Akatsuka
    Undergraduate 4th grade
  • Takuma Kubota
    Takuma Kubota
    Undergraduate 4th grade
  • Rion Muraki
    Rion Muraki
    Undergraduate 4th grade

ALMNI

  • Staff (Professor, Postdoc) [ -2024.4 ]

     

  • Ph.D Thesis (including students who go on to be the postdoc) [ -2023.3 ]
    • 2024.3
    • GONG, Lizhikun (China Scholarship Council)

    • Currently: Postdoc at Wuhan University
    • “Synthesis and Functionality of Freestanding Perovskite Oxide Sheets using Amorphous Oxide Protection Layer”  Flexible oxide thin films, Ferroelectric oxide thin films  Achievement list

    • 2023.4
    • YANG, Hui (China Scholarship Council)

    • Currently a Lecturer at Shenzhen Technology University, China
    • “TBA”  Transparent oxide semiconductors, Thin film transistors  Achievement list

    • 2023.3
    • CHEN, Binjie (MEXT Scholarship)

    • Currently: Wuzhen lab (Zhejiang), specially appointed associate researcher
    • “Study on the epitaxial strain effects on optoelectronic properties of functional oxides with rutile structure”  Strain effect of rutile structured oxides, Multiferroics  Thesis   Achievement list  publons

    • 2022.3

    • YANG, Qian (JSPS, DC2)

    • Currently a Lecturer at Jiangsu University, China
    • “Solid-State Electrochemical Protonation/Redox Reaction Induced Control of Physical Properties of SrCoOx and SrFeOx”  Electrochemical devices  Thesis   Achievement list  publons

    • 2021.9

    • KIM, Gowoon (JSPS, DC2)

    • Currently SAMSUNG ELECTRO-MECHANICS
    • “Study on the heat and electron transport properties of tungsten oxide films with various atomic arrangements”  Thermoelectrics, Tungsten oxide films  Thesis   Achievement list  publons

    • 2021.9

    • WEI, Mian (China Scholarship Council)

    • Currently a Lecturer at School of Materials, Henan University, China
    • “Study on the optoelectronic properties of transparent oxide semiconductor ASnO3 (A = Ba, Sr, and Ca) epitaxial thin films”  Transparent Oxide Semiconductor  Thesis   Achievement list  publons

    • 2020.10

    • LIANG, Dou-dou (China Scholarship Council)

    • Currently a Lecturer at School of Integrated circuit, Ludong University, China
    • “TBA”  Thermoelectrics, Transparent Oxide Semiconductor Thin Film Transistor  Achievement list  China Scholarship Council (Ph.D student, USTB, Special Research Student), publons  ORCiD: 0000-0002-4112-2069

    • 2020.3

    • ONOZATO, Takaki (JSPS, DC1)

    • Currently SONY
    • “Development of electrochromic transistors using amorphous tungsten oxide thin film as the active layer”   Electrochemical materials and devices  Thesis   Achievement list  publons

    • 2019.3

    • ZHANG, Yuqiao (China Scholarship Council)

    • “Study on the thermoelectric properties of SrTiO3 – SrNbO3 solid solutions using the epitaxial thin films and the artificial superlattices” Thermoelectric materials Thesis  JSPS Postdoctoral Fellow, ORCiD: 0000-0001-7579-4923

     

  • Master's Thesis (including students who go on to the next stage of education) [ -2023.3 ]
    • 2024.3
    • LIU, Yaoming

    • “Ferroelectric and dielectric properties of millimeter-size Ba1–xSrxTiO3 flexible epitaxial sheets”  Multiferroic materials  Achievement list

    • 2022.3

    • YU, Rui

    • “Ferroelectric and dielectric properties of millimeter-size Ba1–xSrxTiO3 flexible epitaxial sheets”  Ferroelectric oxide thin films  Achievement list

    • 2022.3

    • WU, Liao

    • “High-Temperature Thermoelectric properties of Ba1/3CoO2 Epitaxial Films”  Thermoelectric materials  Achievement list

    • 2022.3

    • FUJIMOTO, Takashi

    • “Electric Field Thermopower Modulation Analyses of the Effective Thickness InGaO3(ZnO)m Thin Film Transistors”  Transparent oxide semiconductors  Achievement list

    • 2021.3

    • TAKASHIMA, Yugo

    • “Fabrication and Thermoelectric Properties of Ba1/3CoO2 Epitaxial Films”  Thermoelectric materials  Achievement list

    • 2021.3

    • GONG, Lizhikun

    • “Fabrication and Characterization of Deep Ultraviolet Transparent Oxide Semiconductor
      SrSnO3 Thin Film Transistor”  Transparent oxide semiconductors   Ph.D

    • 2020.3

    • SATO, Koichi

    • “Effect of lattice distortion on heat/electron transport properties of transparent semiconductor (Ba1−xSrx)SnO3 solid solution thin films”  Transparent oxide semiconductors  Achievement list

    • 2020.3

    • SUGO, Kenyu

    • “Thermoelectric properties of band insulator SrTiO3 – Mott insulator LaTiO3 solid solution epitaxial films” Thermoelectric materials  Achievement list

    • 2019.9

    • WU, Yuzhang

    • “Conduction of heat across InGaO3(ZnO)m natural superlattices” Reactive Solid-Phase Epitaxy, Phonon engineering  Ph.D

    • 2019.3

    • OYAMADA, Tatsuro

    • “Study on current-induced effective magnetic fields in ferromagnetic oxide La0.67Sr0.33MnO3 heterostructures” Spintronic devices  Achievement list

    • 2019.3

    • NEZU, Yukio

    • “Study on the thermal conductivity of layered cobalt oxides, AxCoO2 (Ax=Na0.8, Ca0.3, Sr0.3) epitaxial films” Thermoelectric materials  Achievement list

    • 2018.9

    • WEI, Mian

    • “Study of the origin of mobility suppression in a transparent oxide semiconductor, La-doped BaSnO3” Transparent oxide semiconductors  Ph.D

    • 2017.3

    • ONOZATO, Takaki

    • “Room temperature fabrication of a novel memory device utilizing reversible changes of color and conductivity” Electrochemical materials and devices  Ph.D

    • 2017.3

    • SUZUKI, Yuki

    • “Improvement of magnetic- & conducting memory device with strontium cobaltite thin film active layer” Electrochemical materials and devices  Achievement list

    • 2016.3

    • ENDO, Kenji

    • “Research on electrochromic devices utilizing protonation of vanadium dioxide thin film” Electrochemical materials and devices  Achievement list

     

  • Graduation Thesis (including students who go on to the next stage of education) [ -2024.3 ]
    • 2024.3
    • SADAHIRA, Hikaru

    • “Development of Indium Hydroxide-based PLD Target for High-mobility Oxide Thin Film Transistors” Master’s course
    • CHEN, Diwen

    • “Origin of performance degradation for a thermoelectric oxide Ba1/3CoO2 above 600 °C” Master’s course
    • MITSUYA, Ren

    • “Fabrication of BiFeO3 freestanding sheets”    Master’s course
    • 2023.3
    • SAITO, Susumu

    • “Resistance change characteristics of Fe-doped Zr oxyfluoride”
    • TATSUMI, Syohei

    • “Fabrication and thermoelectric properties of Ba1/3CoO2 sintered ceramics”
    • MARUNOUCHI, Ko

    • “Ga and Al doping effect on ferroelectric properties of BaTiO3 epitaxial films”    Master’s course
    • YOSHIMURA, Mitsuki

    • “Effect of Solid Electrolyte Thickness on the Thermal Transistor Characteristics”   Master’s course
    • 2022.3
    • KOBAYASHI, Tatsuya

    • “Investigation of synthesis methods for R3+OF (R = Sc and Y) oxyfluoride thin films”
    • SATO, Rio

    • “Ferroelectric and magnetic properties of hexagonal ErFeO3 epitaxial films”
    • LIU, Yaoming

    • “Optoelectronic properties of rutile SnO2 epitaxial films grown on M-plane sapphire substrate”    Master’s course finished
    • YOSHIDA, Kengo

    • “Thermal conductivity of La-doped BaSnO3 films”
    • 2021.3
    • OHKURA, Takuma

    • “Conductivity modulation of SrFeOx thin film using solid-state electrochemical reaction”  Electrochemical materials and devices   Master’s course in another department
    • KWON, Youngha

    • “Heat Conduction of Natural Oxide Superlattice InGaO3(ZnO)m Single-Crystalline Film”   Thermal management   Master’s course in the University of Tokyo
    • 2020.3
    • IGUCHI, Rion

    • “Fabrication and characterization of amorphous Ir0.15Sn0.85O2 films for electrochromic devices”  Electrochemical materials and devices
    • SAKAI, Takaki

    • “Study on interaction between spin-orbit torque and domain walls in a Pt/SrRuO3/SrTiO3 structure”  Spintronic devices
    • FUJIMOTO, Takashi

    • “Effect of heat treatment on the microstructure and electron transport properties of lightly La-doped BaSnO3 films”  Transparent Oxide Semiconductors  Master’s course finished
    • 2019.3
    • HASHIMOTO, Taiki

    • “The planar Hall effect in ferromagnetic oxide La1-xSrxMnO3 (x = 0.33, 0.45) thin films” Spintronic devices
    • 2018.3
    • SATO, Koichi

    • “Current induced effective magnetic field of the SrRuO3/La0.67Sr0.33MnO3/SrTiO3 heterostructure” Spintronic devices  Master’s course finished
    • OZAWA, Ryosuke

    • “Temperature dependence of current induced magnetic domain wall motion of a ferromagnetic oxide SrRuO3Spintronic devices
    • SATO, Takeshi

    • “Fabrication and thermoelectric properties of n-type Bi2Te2.7Se0.3 thin films by pulsed laser deposition” Thermoelectric materials
    • ZENSYO, Haruki

    • “Effect of substrate crystal on the crystallization and electron transport properties of transparent oxide semicondutor La-doped BaSnO3 thin films” Transparent Oxide Semiconductors
    • YOKOI, Naoki

    • “Development of high temperature thermoelectric properties measurement equipment for thin films” Thermoelectric materials
    • 2017.3
    • NEZU, Yukio

    • “Solid-phase epitaxial film growth of homologous phase SrnNbnO3n+2 Solid-Phase Epitaxy  Master’s course finished
    • OYAMADA, Tatsuro

    • “Observation of current induced effective magnetic field of La0.67Sr0.33MnO3/SrTiO3 heterostructure” Spintronic devices  Master’s course finished
    • SHIMADA, Jun

    • “Interactions between current and domain wall in ferromagnetic oxide SrRuO3Spintronic devices
    • 2016.3
    • TAKOSHIMA, Kensuke

    • “Fabrication and characterization of La0.7Sr0.3Mn1-xRuxO3 epitaxial films with easy magnetization directions perpendicular to the film – toward high-performance magnetic domain wall motion device -” Spintronic devices
    • 2015.3
    • SAKAGAMI, Akiyasu

    • “Magnetization reversal by local magnetic field in ferromagnetic La0.67Sr0.33MnO3Spintronic devices
    • SUZUKI, Yuki

    • “Fabrication of solid-state ferromagnetic SrCoO3-δ thin film transistor” Electrochemical materials and devices  Master’s course finished
    • HIRONO, Misako

    • “Fabrication of all-solid-state electrochromic WO3 thin film transistors” Electrochemical materials and devices
    • 2014.3
    • ENDO, Kenji

    • “Electric field & hydrogenation induced insulator-metal transition and thermopower modulation of VO2 thin films” Electrochemical materials and devices  Master’s course finished
    • KOBAYASHI, Yusuke

    • “Giant thermopower modulation of SrTiO3 single crystalline thin films” Thermoelectric materials

     

  • Foreign scholar / Visiting Scholar (Short stay) [ -2024.3 ]
    • [2023.7.18-8.2]
    • NOH, Junho & LEE, Hwangyu

    • (Korea, SKKU)
    • [2019.9.26-12.20]
    • KRAHL, Fabian

    • (Finland, Aalto University, Prof. Maarit Karppinen)
    • [2019.9.1-10.30]
    • TAO, Ang

    • (Shenyang National Laboratory for Materials Science, Prof. Chunlin Chen)
    • [2018.9.20-10.6 ]
    • KIM, Hyunjung

    • (Pusan National University, Prof. JEEN, Hyoung Jeen’s Lab.) JSPS-NRF Bilateral Joint Research
    • [2018.9.20-10.6 ]
    • LEE, Joonhyuk

    • (Pusan National University, Prof. JEEN, Hyoung Jeen’s Lab.) JSPS-NRF Bilateral Joint Research
    • [2018.6.17-7.3]
    • LEE, Hahoon

    • (Seoul National University, Prof. CHAR, Kookrin’s Lab.) Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials
    • [2018.3.19-2018.4.19 ]
    • TAM, Jason

    • (University of Toronto, Prof. ERB, Uwe’s Lab.)
    • [2018.3.4-18]
    • ZHANG, Jianbing

    • (Tsinghua University, Prof. Pu Yu’s Lab.) Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials
    • [2018.1.14-22]
    • AHN, Eunyoung

    • (Pusan National University, Prof. JEEN, Hyoung Jeen’s Lab.)
    • [2018.1.14-29]
    • KIM, Gowoon

    • (Pusan National University, Prof. JEEN, Hyoung Jeen’s Lab.)
    • [2017.9.10-9.23 ]
    • LEE, Joonhyuk

    • (Pusan National University, Prof. JEEN, Hyoung Jeen’s Lab.)
    • [2017.9.10-9.23 ]
    • KIM, Gowoon

    • (Pusan National University, Prof. JEEN, Hyoung Jeen’s Lab.) Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials
    • [ 2017.9.10-9.23 ]
    • LEE, Soogil

    • (KAIST) Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials
    • [ 2017.6.20-2017.8.21 ]
    • TAM, Jason

    • (University of Toronto, Prof. ERB, Uwe’s Lab.) JSPS summer program
    • [ 2016.10.23-2016.11.5 ]
    • KIM, Eun Sung

    • (SKKU, Prof. KIM, Sung Wng’s Lab.) Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials
    • [ 2016.10.16-20.16.10.29 ]
    • WOO, Sungmin

    • (SKKU, Prof. CHOI, Woo Seok’s Lab.) Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials
    • [ 2016.9.25-2016.10.8 ]
    • CHIU, Shao Pin

    • (NCTU, Prof. LIN, Juhn-Jong’s Lab.) Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials

     

  • Nagoya University (supervisor: Prof. Kunihito Koumoto) (OB and OG) [ 2003.10-2013.3 ]
    • Dr. Shingo Ohta

    • Study on electron-doped SrTiO3 as oxide thermoelectric materials [2003.10-2006.3] Ph.D.
    • Mr. Takashi Nomura

    • Study on electron-doped TiO2 as oxide thermoelectric materials [2003.10-2005.3] M.E.
    • Dr. Kenji Sugiura

    • Study on epitaxial film growth and thermoelectric properties of layered oxides [2003.10-2009.3] Ph.D.
    • Mr. Atsushi Mizutani

    • Study on epitaxial film growth and peeling off of layered oxides [2004.4-2007.3] M.E.
    • Mr. Keisuke Kato

    • Study on thermoelectric properties of electron-doped SrTiO3 [2004.4-2007.3] M.E.
    • Mr. Masahiro Yamamoto

    • Study on thermoelectric properties of electron-doped ATiO3 [2004.4-2007.3] M.E.
    • Ms. Yoriko Mune

    • Study on fabrication and thermoelectric properties of SrTiO3-based artificial superlattices [2005.4-2008.3] M.E.
    • Ms. Yuki Nakanishi

    • Study on the phonon-drag thermopower of SrTiO3-based artificial superlattices [2005.4-2008.3] M.E.
    • Mr. Daisuke Kurita

    • Study on single crystalline SrTiO3-based transistors [2005.4-2008.3] M.E.
    • Mr. Kosuke Uchida

    • Study on SrTiO3-based thin-film transistors [2007.4-201.3] M.E.
    • Mr. Yuki Nagao

    • Study on TiO2-based thin-film transistors [2007.4-2010.3] M.E.
    • Dr. Akira Yoshikawa

    • Study on KTaO3-based thin-film transistors [20078.4-2011.3] M.E.
    • Mr. Atsushi Kume

    • Study on thermoelectric properties of LaAlO3/SrTiO3 heterointerfaces [2008.4-2011.3] M.E.
    • Mr. Taku Mizuno

    • Study on the physical properties modulation of functional oxides using the porous insulator with water [2009.4-2012.3] M.E.
    • Mr. Hirotaka Koide

    • Study on electric field thermopower modulation of amorphous transparent oxide semiconductor based thin film transistors [2009.4-2012.3] M.E.
    • Mr. Noriyuki Aoki

    • Study on solid electrolyte for solid-state lithium batteries [2010.4-2013.3] M.E.