J
Joonyeon Chang
Researcher at Yonsei University
Publications - 23
Citations - 521
Joonyeon Chang is an academic researcher from Yonsei University. The author has contributed to research in topics: Magnetization & Spin–orbit interaction. The author has an hindex of 6, co-authored 23 publications receiving 228 citations. Previous affiliations of Joonyeon Chang include Korea Institute of Science and Technology.
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Journal ArticleDOI
Skyrmion-based artificial synapses for neuromorphic computing
Kyung Mee Song,Jaeseung Jeong,Biao Pan,Xichao Zhang,Jing Xia,Sun Kyung Cha,Tae Eon Park,Kwangsu Kim,Kwangsu Kim,Simone Finizio,Jörg Raabe,Joonyeon Chang,Joonyeon Chang,Yan Zhou,Weisheng Zhao,Wang Kang,Hyunsu Ju,Seonghoon Woo,Seonghoon Woo +18 more
TL;DR: In this article, the accumulation and dissipation of magnetic skyrmions in ferrimagnetic multilayers can be controlled with electrical pulses to represent the variations in the synaptic weights.
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Néel-type skyrmions and their current-induced motion in van der Waals ferromagnet-based heterostructures
Tae Eon Park,Licong Peng,Jinghua Liang,Ali Hallal,Fehmi S. Yasin,Xichao Zhang,Kyung Mee Song,Sung Jong Kim,Sung Jong Kim,Kwangsu Kim,Kwangsu Kim,Markus Weigand,Gisela Schütz,Simone Finizio,Jörg Raabe,Karin Garcia,Karin Garcia,Jing Xia,Yan Zhou,Motohiko Ezawa,Xiaoxi Liu,Joonyeon Chang,Joonyeon Chang,Hyun Cheol Koo,Hyun Cheol Koo,Young Duck Kim,Mairbek Chshiev,Albert Fert,Albert Fert,Albert Fert,Hongxin Yang,Xiuzhen Yu,Seonghoon Woo,Seonghoon Woo +33 more
TL;DR: In this article, the authors reported the experimental observation of Neel-type chiral magnetic skyrmions and their lattice formation in a vdW ferromagnet Fe3GeTe2 (FGT).
Journal ArticleDOI
Fast Magneto-Ionic Switching of Interface Anisotropy Using Yttria-Stabilized Zirconia Gate Oxide.
Ki Young Lee,Sujin Jo,Aik Jun Tan,Mantao Huang,Dongwon Choi,Jung Hoon Park,Ho-Il Ji,Ho-Il Ji,Ji-Won Son,Ji-Won Son,Joonyeon Chang,Joonyeon Chang,Geoffrey S. D. Beach,Seonghoon Woo +13 more
TL;DR: The results suggest further engineering of the proton conducting materials and interfaces could bring substantial improvement in switching speed that may enable new low-power computing technology based on magneto-ionics.
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Voltage control of ferrimagnetic order and voltage-assisted writing of ferrimagnetic spin textures.
Mantao Huang,Muhammad Usama Hasan,Konstantin Klyukin,Delin Zhang,Deyuan Lyu,Pierluigi Gargiani,Manuel Valvidares,Sara Sheffels,Alexandra Churikova,Felix Büttner,Jonas Zehner,Lucas Caretta,Ki Young Lee,Joonyeon Chang,Joonyeon Chang,Jian-Ping Wang,K. Leistner,Bilge Yildiz,Geoffrey S. D. Beach +18 more
TL;DR: In this paper, a solid-state hydrogen gating was used to control the ferrimagnetic order in rare earth transition metal thin films dynamically, which can shift the magnetic compensation temperature by more than 100'K, enabling control of the dominant magnetic sublattice.
Journal ArticleDOI
Intrinsically p-type cuprous iodide semiconductor for hybrid light-emitting diodes.
Doyeol Ahn,Doyeol Ahn,Jin Dong Song,Soo Seok Kang,Soo Seok Kang,Ju Young Lim,S. H. Yang,S. Ko,Seoung-Hwan Park,S. J. Park,Dong Seob Kim,Hyeyoun Chang,Joonyeon Chang,Joonyeon Chang +13 more
TL;DR: The single crystal epitaxy of high quality cuprous iodide (CuI) film grown on Si and sapphire substrates by molecular beam epitaxy is demonstrated and enhanced photoluminescence on the order of magnitude larger than that of GaN and continuous-wave optically pumped lasing were found in MBE grown CuI film.