[4] Hai Jun Cho*, Yuzhang Wu, Jiajun Qi, Yuna Kim, and Hiromichi Ohta, Osamu Matsuda*, “Specular acoustic vibrational wave transmissions with the presence of phononic bandgaps”, J. Phys. Soc. Japan 91, 014601 (2022). (December 3, 2021) (DOI: 10.7566/JPSJ.91.014601)

[3] Jiajun Qi, Yuzhang Wu, Hai Jun Cho*, Yuna Kim*, Hiromichi Ohta, and Nobuyuki Tomaoki, “Pressure-tunable thermal conductivity observed from bisamide functionalized diacetylene crystals”, J. Mater. Sci. (2021). (June 22, 2021) (DOI: 10.1007/s10853-021-06192-7)

[2] Hai Jun Cho*, Yuzhang Wu, Yuqiao Zhang, Bin Feng, Masashi Mikami, Woosuck Shin, Yuichi Ikuhara, Yu-Miin Sheu, Keiji Saito, and Hiromichi Ohta*, “Anomalously Low Heat Conduction in Single-Crystal Superlattice Ceramics Lower than Randomly Oriented Polycrystals”, Adv. Mater. Interfaces 2001932 (2021). (February 15, 2021) (DOI: 10.1002/admi.202001932)

[1] Fabian Krahl, Yuzhang Wu, Hai Jun Cho*, Maarit Karppinen, and Hiromichi Ohta*, “Spontaneous generation of carrier electrons at the interface between polycrystalline ZnO and amorphous InGaZnO₄”, Adv. Electron. Mater. 6, 2000404 (2020). (September 11, 2020) (DOI: 10.1002/aelm.202000404)

[13] Yuzhang Wu, Yusaku Magari, Prashant R. Ghediya, Yuqiao Zhang, Yasutaka Matsuo, Hiromichi Ohta, “Role of Zn Introduction in In₂O₃ TFTs −Suppression of Grain Boundary Scattering −”, 2024年 第71回 応用物理学会春季学術講演会, 東京都市大学 世田谷キャンパス,東京, 2024年3月22日-25日.

[12] Yuzhang Wu, Yusaku Magari, Prashant Ghediya, and Hiromichi Ohta, “Modulation of Electron Transport Properties of Amorphous In−Zn−O Films with Varied Zn Concentrations”, 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.

[11] Yuzhang Wu, Yusaku Magari, Prashant Ghediya, and Hiromichi Ohta, “Modulation of Electron Transport Properties of Amorphous In−Zn−O Films with Varied Zn Concentrations”, The 24th RIES-HOKUDAI International Symposium 開 [kai], Hokkaido University, Sapporo, Japan, December 6-7, 2023.

[10] Yuzhang Wu, Yusaku Magari, Prashant Ghediya, and Hiromichi Ohta, “Modulation of electron transport properties of amorphous In−Zn−O films with varied Zn concentrations”, The Mini-Workshop on Functional Materials Science (Organizers’ meeting), Sapporo, Japan, December 1-2, 2023. (Poster)

[9] Y. Wu, H.J. Cho, Y. Zhang, B. Feng, M. Mikami, W. Shin, Y. Ikuhara, Y. Sheu, K. Saito, and H. Ohta, “Anomalously Low Heat Conduction in Single-Crystal Superlattice Ceramics Lower than Randomly Oriented Polycrystals”, 2021年 第68回 応用物理学会春季学術講演会, online, 2021.3.16-19.

[8] Y. Wu, H.J. Cho, B. Feng, M. Mikami, W. Shin, Y. Ikuhara, K. Saito, and H. Ohta, “Phonon propagation competition across natural superlattice InGaO₃(ZnO)_m“, The 3rd Workshop on Functional Materials Science, Sapporo, Japan, December 18th-20th, 2019.  (Poster)

[7] Yuzhang Wu, Hai Jun Cho, Bin Feng, Masashi Mikami, Woosuck Shin, Yuichi Ikuhara, Keiji Saito, and Hiromichi Ohta, “Thermal conductivity of InGaO₃(ZnO)_m (m = integer) natural superlattice”, RIES-NCTU Workshop, Hokkaido University, Sapporo, Japan, December 3-4, 2019. (Poster)

[6] Yuzhang Wu, Hai Jun Cho, Bin Feng, Masashi Mikami, Woosuck Shin, Yuichi Ikuhara, Keiji Saito, and Hiromichi Ohta, “Thermal conductivity of InGaO₃(ZnO)_m (m = integer) natural superlattice”, The 20th RIES-HOKUDAI International Symposium, Hokkaido University, Sapporo, Japan, December 2-3, 2019. (Poster)

[5] 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“, The 80th JSAP Autumn Meeting 2019, Sapporo, Japan, September 18-21, 2019.

[4] Y. Wu, H. Cho, B. Feng, M. Mikami, W. Shin, Y. Ikuhara, and H. Ohta, “Natural superlattice structure based ultralow thermal conductivity in InGaO₃(ZnO)_m single crystalline films”, 第54回応用物理学会北海道支部/第15回日本光学会北海道支部合同学術講演会, サン・リフレ函館, 北海道函館市, 2019年1月5日-6日

[3] Y. Wu, H.J. Cho, B. Feng, M. Mikami, W. Shin, Y. Ikuhara, K. Saito, H. Ohta, “Kapitza resistance based ultralow thermal conductivity of natural superlattice ceramic single crystalline films”, The 19th RIES-HOKUDAI International Symposium 組[So], Jozankei View Hotel, Sapporo, December 11th-12th, 2018 (Poster)

[2] Y. Wu, H. Cho, B. Feng, M. Mikami, W. Shin, Y. Ikuhara, and H. Ohta, “Heat transportation across parallel layers of natural superlattice InGaO₃(ZnO)_m single crystalline films”, The 2nd Workshop on Functional Materials Science, Busan, South Korea, October 22-23, 2018

[1] Y. Wu, H. Cho, B. Feng, M. Mikami, W. Shin, Y. Ikuhara, and H. Ohta, “Cross-plane thermal conductivity of InGaO₃(ZnO)_m (m=integer) single crystalline thin films”, 2018年 第79回 応用物理学会秋季学術講演会, 名古屋国際会議場（名古屋・愛知）, 2018年9月18日-21日