Zobrazeno 1 - 10
of 211
pro vyhledávání: '"Hyunyong Choi"'
Autor:
Jinjae Kim, Jiwon Park, Hyojin Choi, Taeho Kim, Soonyoung Cha, Yewon Lee, Kenji Watanabe, Takashi Taniguchi, Jonghwan Kim, Moon-Ho Jo, Hyunyong Choi
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Moiré superlattices of transition metal dichalcogenides offer a unique platform to explore correlated exciton physics with optical spectroscopy. Whereas the spatially modulated potentials evoke that the exciton resonances are distinct depen
Externí odkaz:
https://doaj.org/article/38c595213a71473598c6704a11e8eb6e
Autor:
Dirk Wulferding, Junkyoung Kim, Mi Kyung Kim, Yang Yang, Jae Hyuck Lee, Dongjoon Song, Dongjin Oh, Heung-Sik Kim, Li Ern Chern, Yong Baek Kim, Minji Noh, Hyunyong Choi, Sungkyun Choi, Natalia B. Perkins, Changyoung Kim, Seung Ryong Park
Publikováno v:
npj Quantum Materials, Vol 8, Iss 1, Pp 1-7 (2023)
Abstract The emergence of scalar Higgs-type amplitude modes in systems where symmetry is spontaneously broken has been a highly successful, paradigmatic description of phase transitions, with implications ranging from high-energy particle physics to
Externí odkaz:
https://doaj.org/article/9bfc88bad0844ef39049441c3f8d3df7
Autor:
Jekwan Lee, Jaehyeon Kwon, Eunho Lee, Jiwon Park, Soonyoung Cha, Kenji Watanabe, Takashi Taniguchi, Moon-Ho Jo, Hyunyong Choi
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-6 (2023)
The standard topological insulator is characterized by an insulating bulk and a conducting boundary, so a three dimensional insulating bulk of a topological insulator has a conducting surface. Recently, this idea was extended to the edges of the surf
Externí odkaz:
https://doaj.org/article/6d867102af7a4934823ed923525c994c
Publikováno v:
Light: Science & Applications, Vol 11, Iss 1, Pp 1-15 (2022)
Graphene and topological insulators are promising platforms for near-field nanotechnology on a subwavelength scale. Authors present the highly confined nature of Dirac plasmon-polaritons in graphene, topological insulator, and hybrid systems.
Externí odkaz:
https://doaj.org/article/60f8419ca2e441a683a5ba2b6314f25f
Autor:
Jekwan Lee, Wonhyeok Heo, Myungjun Cha, Kenji Watanabe, Takashi Taniguchi, Jehyun Kim, Soonyoung Cha, Dohun Kim, Moon-Ho Jo, Hyunyong Choi
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)
The valley Hall effect in 2D materials is a promising approach for future valleytronic applications, but it is usually based on excitons with short lifetimes. Here, spin polarized electrons are injected from WTe2 into MoS2, leading to a unipolar vall
Externí odkaz:
https://doaj.org/article/8629fd31b1e14cb5ae39626e1a68c90d
Autor:
Sangyoon Paik, Gwangmook Kim, Sehwan Chang, Sooun Lee, Dana Jin, Kwang-Yong Jeong, I Sak Lee, Jekwan Lee, Hongjae Moon, Jaejun Lee, Kiseok Chang, Su Seok Choi, Jeongmin Moon, Soonshin Jung, Shinill Kang, Wooyoung Lee, Heon-Jin Choi, Hyunyong Choi, Hyun Jae Kim, Jae-Hyun Lee, Jinwoo Cheon, Miso Kim, Jaemin Myoung, Hong-Gyu Park, Wooyoung Shim
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-13 (2020)
Photolithography is an established microfabrication technique but commonly uses costly shortwavelength light sources to achieve high resolution. Here the authors use metal patterns embedded in a flexible elastomer photomask with mechanical robustness
Externí odkaz:
https://doaj.org/article/1987c102c64a454185373731c0b8d245
Autor:
Ji-Hee Kim, Matthew R. Bergren, Jin Cheol Park, Subash Adhikari, Michael Lorke, Thomas Frauenheim, Duk-Hyun Choe, Beom Kim, Hyunyong Choi, Tom Gregorkiewicz, Young Hee Lee
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
During carrier multiplication, high-energy free carriers in a given material relax by generation of additional electron-hole pairs. Here, the authors report evidence of carrier multiplication in multilayer MoTe2 and WSe2 films with up to 99% conversa
Externí odkaz:
https://doaj.org/article/0aa0200a81034578b05965a772f1e877
Autor:
Seungwon Yoon, Seulgi Lee, Chungyu Park, Hyunyong Choi, Minwoo Yoo, Sang Chul Lee, Cheol-Ho Hyun, Nameun Kim, Taeyoung Kang, Eugene Son, Mrinmoy Ghosh, Young-Ok Son, Chang-Gi Hur
Publikováno v:
Vaccines, Vol 10, Iss 9, p 1503 (2022)
Pigs are promising donors of biological materials for xenotransplantation; however, cell surface carbohydrate antigens, including galactose-alpha-1,3-galactose (α-Gal), N-glycolylneuraminic acid (Neu5Gc), and Sd blood group antigens, play a signific
Externí odkaz:
https://doaj.org/article/3eaefcfc93bb4e2a802535c79c330eea
Autor:
Sangwan Sim, Doeon Lee, Artur V. Trifonov, Taeyoung Kim, Soonyoung Cha, Ji Ho Sung, Sungjun Cho, Wooyoung Shim, Moon-Ho Jo, Hyunyong Choi
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)
Quantum beats are periodic oscillations originating from the superposition of coherent quantum states. Here, the authors observe exciton quantum beats in the optical spectrum of atomically thin ReS2, and modulate the intensity of the quantum beat sig
Externí odkaz:
https://doaj.org/article/aaa9ec738a39435cb0243ea873ca9a02
Autor:
Woo Jong Yu, Quoc An Vu, Hyemin Oh, Hong Gi Nam, Hailong Zhou, Soonyoung Cha, Joo-Youn Kim, Alexandra Carvalho, Munseok Jeong, Hyunyong Choi, A. H. Castro Neto, Young Hee Lee, Xiangfeng Duan
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
Vertical integration of two-dimensional materials can open unprecedented possibilities towards design of efficient optoelectronic devices. Here, the authors investigate the photoresponse properties of a graphene/MoS2/graphene heterostructure, reveali
Externí odkaz:
https://doaj.org/article/d4ffa2a54be84e86b7fbdd8092ea13da