Technical Program

Program (final)

DECEMBER 17th, 2019

Time: 15:00 - 17:00 (Chair: Hai Jun Cho and Hyoungjeen Jeen)

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

Lecturer: Dr. Ho Nyung Lee (Director of the Materials Science and Engineering Program, Oak Ridge National Laboratory)

Title: Oxygen vacancy in complex oxides - The good, the bad, and the ugly

Functional ionic defects, such as oxygen vacancies, play a central role in the performance of many advanced information and energy materials. While of immediate benefit for low temperature energy production and storage devices and sensors, the ability to artificially control oxygen vacancy content in any environment is also crucial for variety of functional materials, such as high-temperature superconductors, colossal magnetoresistors, memristors, and spintronic devices. On the other hand, for some of functional materials, such as ferroelectrics, the formation of oxygen vacancies is highly detrimental for the performance and endurance of the ferroelectric polarization. However, achieving deliberate control of the oxygen stoichiometry in the oxide thin films has not been much studied, albite critical for the performance. In this presentation, I will review a synopsis of the major developments and achievements in formation, control, and understanding of oxygen vacancies in correlated oxides. Overall, these results summarize the role, importance, and difficulty in film growth for the right stoichiometry as well as potential for developing next generation energy and functional materials.

December 18th, 2019

Venue: nest HOTEL sapporo ekimae (Masyu, 2F)

9:00 − 9:55 Registration

9:55 − 10:00 Opening Remarks

(Chair: Hyoungjeen Jeen and Hiromichi Ohta)

10:00 − 11:00 Keynote lecture

Ho Nyung Lee (Oak Ridge National Laboratory)

Quantum Phenomena in Spin-Orbit Entangled Oxide Heterostructures

11:00 − 11:30 Invited lecture

Hiroshi Kageyama (Kyoto University)

Structural and Functional Design by Multiple Anions

11:30 − 12:00 Invited lecture

Hiroaki Misawa (Hokkaido University)

Insight into Modal Strong Coupling and Its Application for Photochemical Reactions

12:00 − 13:30 Lunch break

(Chair: Takeshi Yanagida and Taro Nagahama)

13:30 − 14:00 Invited lecture

Jaekwang Lee (Pusan National University)

First-Principles Calculations of Complex Oxide Interfaces

14:00 − 14:30 Invited lecture

Ken-ichi Uchida (NIMS)

Active Thermal Management Principles based on Spin Caloritronics

14:30 − 14:45 Contributed Oral Presentation

Yu Oshima (Nagoya University)

Enhanced Room-Temperature Ductility of Cubic ZnS Crystals in Darkness

14:45 − 15:00 Contributed Oral Presentation

Kyungwha Chung (Sungkyunkwan University)

Non-Oxidized Copper Nanoparticles by Excess Electrons from Two-Dimensional Electride Materials

15:00 − 15:15 Coffee break

(Chair: Atsushi Fukuchi and Bin Feng)

15:15 − 15:30 Contributed Oral Presentation

Bin Feng (The University of Tokyo)

The Role of Defects in Solid Oxide Fuel Cell Electrolyte Material Studied by Atomic-Resolution STEM

15:30 − 15:45 Contributed Oral Presentation

Shao-Pin Chiu (National Chiao Tung University)

Growth and Electrical Transport Properties of Epitaxial CoSi Thin Films on Silicon

15:45 − 16:00 Contributed Oral Presentation

Juhn-Jong Lin (National Chiao Tung University)

Electrical Transport Properties and 1/f Noise of RuO₂ and IrO₂ Rutiles: Bulks, Films and Nanowires

16:00 − 16:30 Invited lecture

Qiang Li (Brookhaven National Laboratory)

Chiral Matters: from Quark-Gluon Plasma to Quantum Computing

16:30 − 17:00 Invited lecture

SungWng Kim (Sungkyunkwan University)

Magnetism in Two-Dimensional van der Waals Electrides

17:05 Group Photo

17:10 − 18:00 Break

18:00 − 20:00 Informal discussion

December 19th, 2019

Venue: nest HOTEL sapporo ekimae (Masyu, 2F)

(Chair: Ichiro Terasaki and Hiromichi Ohta)

9:00 − 9:30 Invited lecture

Teruyasu Mizoguchi (The University of Tokyo)

Data-Driven Approach for Crystalline Interface and Spectrum

9:30 − 9:45 Contributed Oral Presentation

Taewon Min (Pusan National University)

Dimensional Crossover-Driven Metal-Insulator Transition in SrRuO₃/SrTiO₃ Superlattice

9:45 − 10:00 Contributed Oral Presentation

Fabian Krahl (Aalto University)

Thermal Conductivity in Superlattice and Gradient Hybrid ALD Thin Film Structures

10:00 − 10:15 Coffee break

(Chair: Taishi Takenobu and Hiromichi Ohta)

10:15 − 11:15 Keynote lecture

Yoshihiro Iwasa (The University of Tokyo)

Iontronics on Quantum Materials

11:15 − 11:45 Invited lecture

Pu Yu (Tsinghua University)

Control of Magnetic State in Complex Oxides through Electric Filed Induced Protonation

11:45 − 13:00 Lunch break

Venue: nest HOTEL sapporo ekimae (Hamanasu, 2F)

(Chair: Hyoungjeen Jeen and Hiromichi Ohta)

13:00 − 14:00 Poster session

Preparation of the poster: A0 size (W 84.1 cm - H 118.9 cm)

(Chair: Hai Jun Cho and Hiromichi Ohta)

14:00 − 14:30 Invited lecture

Kookrin Char (Seoul National University)

2DEG State at BaSnO₃/LaInO₃ Interface Created by Interface Polarization

14:30 − 15:00 Invited lecture

Si-Young Choi (POSTECH)

Unveiling Metal-Insulator Transition in Vanadium Oxides

15:00 − 15:15 Coffee break

(Chair: Taro Nagahama and Yoshiyuki Nonoguchi)

15:15 − 15:30 Contributed Oral Presentation

Hai Jun Cho (Hokkaido University)

Investigation of Transport Property Reductions in Epitaxial La-doped BaSnO₃ Films

15:30 − 15:45 Contributed Oral Presentation

Makoto Minohara (AIST)

Tailoring the Hole Mobility in SnO Films by Modulating the Growth Thermodynamics and Kinetics

15:45 − 16:00 Contributed Oral Presentation

Kaito Kanahashi (Waseda University)

Giant Power Factors in p- and n-type Large-Area Graphene Films on a Flexible Plastic substrate

16:00 − 16:30 Invited lecture

Hiroki Ago (Kyushu University)

Controlled Synthesis of 2D Materials and Their Heterostructures for Device Applications

16:30 − 17:00 Invited lecture

Minseok Choi (Inha University)

Understanding of Defect-Strain Coupling in Two Dimensional Materials using First-Principles Calculation

December 20th, 2019

11:00 − 15:00 Lab tour in Hokkaido University

POSTER

Preparation of the poster: A0 size (W 84.1 cm - H 118.9 cm)

Poster board layout is located bottom of this page.

P1

Thermoelectric Properties of Semiconducting Carbon Nanotube Thin Films Dependent on Diameter Distribution and Purity

Junichi Komoto (Nara Institute of Science and Technology (NAIST))

P2

Zero Contribution of Conduction Electrons in the Thermal Conductivity of a Metallic Conductor

Yuqiao Zhang (Hokkaido University)

P3

The Origin of Sub-Room Temperature Ferromagnetism in VSe₂ Monolayer: Reduced Dimension and Electron Correlation

Taekjung Kim (Korea Advanced Institute of Science and Technology (KAIST))

P4

First-Principle Studies of Flexoelectric Effect in Corrugated Two-Dimensional Materials

Yeongrok Jin (Pusan National University)

P5

Fabrication and Characterization of Deep-Ultraviolet Transparent Oxide Semiconductor Thin Film Transistors

Gong Lizhikun (Hokkaido University)

P6

Self-Passivated Dihafnium Sulfide Electride and Its Persistent Electrocatalytic Reaction in Water and Acid

Se Hwang Kang (Sungkyunkwan University)

P7

Oxygen Diffusion across the Oxide Interfaces

Joonhyuk Lee (Pusan National University)

P8

Thermopower Detection of Electronic Structure Modulation of SrCoO_2.5 Film on Lattice Mismatched Substrates

Qian Yang (Hokkaido University)

P9

Reversible Redox Reactions in Polycrystalline PrBaCo₂O_5.7+x

Yun-Seok Heo (Pusan National University)

P10

Ni₇₈Fe₂₂/Mq₃ (M=Al, Er)/Ni₇₈Fe₂₂ Nanoscale Junction Devices utilizing Magnetic Thin-Film Edges

Yuma Sasaki (Hokkaido University)

P11

Thickness-Dependent Flexoelectric Photocurrent Enhancement in Perovskite Oxide Thin Films

Hyun Il Seo (Sungkyunkwan University)

P12

Electric Field Thermopower Modulation of High-Mobility SnO₂ Transparent Thin Film Transistor

Doudou Liang (Hokkaido University & University of Science and Technology Beijing)

P13

High-k Perovskite Dielectric BaHf_1−xTi_xO₃

Dowon Song (Seoul National University)

P14

New Deep-Ultraviolet Transparent Oxide Semiconductor, La-Doped SrSnO₃

Mian Wei (Hokkaido University)

P15

On the Origin and the Manipulation of Ferromagnetism in Fe₃GeTe₂: Defects and Dopings

Hongkee Yoon (Korea Advanced Institute of Science and Technology (KAIST))

P16

Characterization of Thermal Conductivity Tensors using Time-Domain Thermoreflectance

Hai Jun Cho (Hokkaido University)

P17

Systematic Investigation of Thermoelectric Properties in Sr_1−xLa_xTiO₃ Solid-Solution System

Kenyu Sugo (Hokkaido University)

P18

Induced Magnetic Two-Dimensionality by Hole Doping in Superconducting Nd_1−xSr_xNiO₂: A First-Principles Perspective

Siheon Ryee (Korea Advanced Institute of Science and Technology (KAIST))

P19

Epitaxial Growth of Fe₃Sn Thin Films and Its Magnetic Properties

Akira Maeno (Hokkaido University)

P20

Polarized Neutron Reflectometry Study of Nd_0.7Sr_0.3MnO₃/Nd_0.5Sr_0.5MnO₃ Superlattices

Sangkyun Ryu (Pusan National University)

P21

Metal-Insulator Transition in Ca₂RuO₄ Thin Films with a High Sensitivity to Electrical Stimuli

Keiji Tsubaki (Hokkaido University)

P22

Two-Dimensional Electron Phase on Electride Surface

Joonho Bang (Sungkyunkwan University)

P23

Anisotropy of Thermal Conductivity for Epitaxial Films of Layered Cobalt Oxides, A_xCoO₂ (A = Li, Na, Ca, and Sr)

Yugo Takashima (Hokkaido University)

P24

Designed Formation of Intrinsic Sb-Rich Phase for a Synchronal Effect on Thermal Conductivity and Carrier Mobility in High Performance Bi_0.5Sb_1.5Te₃ Alloy

Liangwei Fu (Sungkyunkwan University)

P25

Epitaxial Growth of NiCo₂O₄ Films by Reactive Molecular Beam Epitaxy Method

Asaka Tsujie (Hokkaido University)

P26

Anomalous Hall Effect in Graphene/LaCoO₃ Heterostructure

Dongwon Shin (Sungkyunkwan University)

P27

Ionic Liquid Gating Control of Magnetic Proximity Effect in CoFe₂O₄/Pt Bilayer

Shoto Nodo (Hokkaido University)

P28

First Principles Study of Magnetic Exchange Interaction in Metalloporphyrin/Co Interface

Jinho Byun (Pusan National University)

P29

Tunnel Magnetoresistance Effect of Magnetic Tunnel Junction with Fe₃O₄ (001) Electrodes Grown by Reactive MBE

Shoma Yasui (Hokkaido University)

P30

Effect of Growth Temperature on Chemistry and Magnetism on RE-Fe Epitaxial Thin Films

Daegill Cho (Pusan National University)

P31

Systematic Clarification of Electron and Heat Transports in Oxygen Deficient WO_x

Gowoon Kim (Hokkaido University)

P32

Mechanistic Understanding of Transport in Semiconducting Carbon Nanotube Networks

Kanae Oi (Nara Institute of Science and Technology (NAIST))

P33

Atomic-Scale Understanding of Highly Conducting Polymer Electrolyte

Sungyeb Jung (Pusan National University)

P34

Thermoelectric Performances in Aligned Conducting Polymers

Katsuya Watanabe (Nagoya University)

P35

Ferromagnetic Ordered Heavy Fermion System with Non-Fermi Liquid Behavior in Antiperovskite Gd₃SnC

Jongho Park (Sungkyunkwan University)

P36

A Flexible Electrochromic Transistor under Mechanical Fatigue

Takaki Onozato (Hokkaido University)

P37

Discovery of Two-Dimensional Layered ZnSb by Structural Manipulation

Junseong Song (Sungkyunkwan University)

P38

Synthesis of MoS₂ 1D Structure by Sulfurization of MoO₂ Nanowires Formed by CVD

Manami Goto (Hokkaido University)

P39

Phonon Propagation Competition across Natural Superlattice InGaO₃(ZnO)_m

Yuzhang Wu (Hokkaido University)

P40

Controlling electronic phases of anisotropic I-Mn-V antiferromagnets

Byung Cheol Park (Sungkyunkwan University)