Mini Workshop on Oxide Thermo-Iontronics

Mini Workshop on Oxide Thermo-Iontronics

October 15th, 2025 - Sapporo, Japan

The mini-workshop will be held at Hokkaido University, Sapporo, Japan. The goal of this workshop is to discuss current functional oxide materials toward thermo-iontronics applications. The growth, characterization, material design, and property prediction and optimization of functional oxide materials will be discussed to bring together researchers, scientists, and students to exchange ideas and foster collaborations. We are looking forward to meeting you in Sapporo!

Organizers of the mini-workshop on oxide thermo-iontronics

Date: October 15th, 2025

Venue: Research Institute for Electronic Science 1F Conference Room, Hokkaido University (N20W10, Kita, Sapporo 001-0020, Japan) (43.083620967395, 141.33669415861152)

Registration fee: Free of charge

Note: Registration is required and it will be closed when the number of attendees reaches 40

program

08:40 - 08:55 Reception

(MC: Prof. Ahrong Jeong)

08:55 - 09:00 Welcome address: Prof. Hiromichi Ohta (Director of RIES, Hokkaido University)

(Chair: Prof. Hiromichi Ohta)

09:00 - 09:30 Prof. Hyoungjeen Jeen (Physics, Pusan National University)

"Selective Reduction in Epitaxial SrFe0.5Co0.5O2.5 and Its Reversibility"

09:30 - 10:00 Prof. Hidekazu Tanaka (SANKEN, University of Osaka)

"Hydrogen Induced Quantum Phase Transition in Transition Metal Oxide Thin Films"

10:00 - 10:30 Prof. Kaya Kobayashi (RIES, Hokkaido University)

"Alternate Stacking and Modulation of Insulating Layers in Layered Superconductors"

10:30 - 10:45 Break

(Chair: Prof. Kaya Kobayashi)

10:45 - 11:00 Yeongdeuk Mun (Physics, Pusan National University)

"Real Time Probing of Oxygen-Driven Structural Changes in PrBaCo2O5+δ"

11:00 - 11:15 Hyeyun Chung (Physics, Pusan National University)

"Study of Redox Reactions in Epitaxial PBCO Films"

11:15 - 11:30 Haruka Zaizen (SANKEN, University of Osaka)

"Synthesis of Epitaxial LaNiO3 Thin Film on Zirconia Buffered Si Substrate and Hydrogenation-Induced Thermal Switching"

11:30 - 11:45 Kenta Nakanishi (SANKEN, University of Osaka)

"Epitaxial Growth of EuNiO3 Thin Film for High-Speed Proton Diffusion"

11:45 - 13:15 Lunch break

(Chair: Prof. Hyoungjeen Jeen)

13:15 - 13:45 Prof. Ahrong Jeong (RIES, Hokkaido University)

"High-Performance Solid-State Electrochemical Thermal Switches Based on Oxide Active Layers"

13:45 - 14:15 Prof. Haobo Li (SANKEN, University of Osaka)

"Exploration and Ionic Manipulation of Layered Perovskites"

14:15 - 14:45 Prof. Tsukasa Katayama (RIES, Hokkaido University)

"Exploration of Synthesis Methods for Oxyfluoride Films Toward Novel Ferroelectric Systems"

14:45 - 15:00 Break

(Chair: Prof. Hidekazu Tanaka)

15:00 - 15:15 Kungwan Kang (RIES, Hokkaido University)

"Decomposition Behavior of a Ba1/3CoO2 at High-Temperatures and Its Impact on the Electron Transport Properties"

15:15 - 15:30 Mitsuki Yoshimura (RIES, Hokkaido University)

"Do 4f Electrons Contribute to Thermal Conductivity in Rare Earth Oxides?"

15:30 - 16:00 Prof. Yohei Yomogida (RIES, Hokkaido University)

"Preparation and Properties of Structure-Controlled Nanotubes"

16:00 - 16:30 Prof. Takuto Soma (IMRAM, Tohoku University)

"Late Transition Metal Perovskite Oxides: Ligand Hole Metallic States and Their Instabilities"

16:30 - 17:00 Prof. Bin Feng (University of Tokyo)

"Grain Boundary Segregation in Oxide Materials Studied Using Atomic Resolution STEM"

17:00 - 17:10 Prof. Ahrong Jeong, Closing and Group photo

organizers

Hiromichi Ohta (RIES, Hokkaido University)

Tuskasa Katayama (RIES, Hokkaido University)

Ahrong Jeong (RIES, Hokkaido University)

Secretary

Nao Maruoka (RIES, Hokkaido University)

Sponsors