2. Member

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 (정아롱)
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: Solid-state electrochemical thermal transistors, Oxide thermoelectric materials, Transmission electron microscopy
orcid0000-0002-8040-7331

PROFILE
Ph. D student 3rd (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 2nd (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
Ph. D student 1st (Hokkaido University EXEX Doctoral Fellowship)
KONG, Hyeonjun (공현준)
hjkong1113(@)gmail.com

Room: Research Institute for Electronic Science 3F 03-106
TEL: +81-11-706-9433 / FAX: +81-11-706-9432
keywords: Oxide thin-film transistors, electric field thermopower modulation, Thermal transistors
orcid0009-0004-0358-2162

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
Master's student 2nd
MARUNOUCHI, Ko（丸野内 洸）
komarunouchi(at)eis.hokudai.ac.jp

Room: Research Institute for Electronic Science 3F 03-106
TEL: +81-11-706-9433 / FAX: +81-11-706-9432
keywords: Oxyfluoride thin films
orcidXXXX-XXXX-XXXX-XXXX

PROFILE
Master's student 1st
SADAHIRA, Hikaru (定平 光）
sadahira.hikaru.d3(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: Oxide semiconductor thin-film transistors
orcidXXXX-XXXX-XXXX-XXXX

PROFILE
  • CHEN, Diwen
    Master's student 1st
  • MITSUYA, Ren
    Master's student 1st
  • Shoma Akatsuka
    Undergraduate 4th grade
  • Takuma Kubota
    Undergraduate 4th grade
  • Rion Muraki
    Undergraduate 4th grade
  • NISHIDA Ikki
    Undergraduate 3rd grade
  • KASAI Yuki
    Undergraduate 3rd grade
  • TAKEDA Daito
    Undergraduate 3rd grade
  • ORIMO Reo
    Undergraduate 3rd grade

ALMNI

  • Staff (Professor, Postdoc) [ -2024.4 ]

     

  • Ph.D Thesis (including students who go on to be the postdoc) [ -2024.9 ]

    2024.9

    BIAN, Zhiping (Hokkaido University DX (EXEX) Doctoral Fellowship)

    Currently: Micron Memory Japan

    “Study on the Solid-State Electrochemical Thermal Transistors with High Electrical Conductivity Active Layers”  Solid-state electrochemical thermal transistors  Achievement list

    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   Thesis    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 SrRuO3” Spintronic 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 SrRuO3” Spintronic 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 La0.67Sr0.33MnO3” Spintronic 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) [ -2024.5 ]
    • [2024.3.26-5.2]

    • TENAGUILLO, Miguel Ángel

    • (Spain, CONSEJO SUPERIOR DE INVESTIGACIONES CIENTÍFICAS (CSIC))
    • [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.