Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Wonhee Ko"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Structural imperfections can be a promising testbed to engineer the symmetries and topological states of solid-state platforms. Here, we present direct evidence of hierarchical transitions of zero- (0D) and one-dimensional (1D) topological s
Externí odkaz:
https://doaj.org/article/f42098a8d1934e7bbb9fd9f18d0ad289
Autor:
Felix Lüpke, Marek Kolmer, Jiaqiang Yan, Hao Chang, Paolo Vilmercati, Hanno H. Weitering, Wonhee Ko, An-Ping Li
Publikováno v:
Communications Materials, Vol 4, Iss 1, Pp 1-7 (2023)
Abstract The gapped Dirac-like surface states of compensated magnetic topological insulator MnBi2-xSbxTe4 (MBST) are a promising host for exotic quantum phenomena such as the quantum anomalous Hall effect and axion insulating state. However, it has b
Externí odkaz:
https://doaj.org/article/f2eadf49ad0c47a2af00dc96ea539389
Autor:
Peifu Cheng, Francesco Fornasiero, Melinda L. Jue, Wonhee Ko, An-Ping Li, Juan Carlos Idrobo, Michael S. H. Boutilier, Piran R. Kidambi
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-12 (2022)
Understanding water transport through nanochannels is central to biology, separations and clean water. Here, the authors show transport of water vapor through Angstrom-scale pores (~2.8–6.6 Å in diameter) in atomically thin graphene membranes is
Externí odkaz:
https://doaj.org/article/8e3229fed4d349a7bd0081a2023cd02b
Autor:
Mahmut S. Kavrik, Jordan A. Hachtel, Wonhee Ko, Caroline Qian, Alex Abelson, Eyup B. Unlu, Harshil Kashyap, An-Ping Li, Juan C. Idrobo, Matt Law
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Self-assembled PbSe quantum dot (QD) superlattices are a class of materials that promises novel mesoscale electronic properties due to electronic coupling between individual QDs. Here, the authors reveal distinct electronic states manifested by the q
Externí odkaz:
https://doaj.org/article/2ed94649f8af425b8bad3587e23358f9
Autor:
Qiang Zou, Silu Huang, Wonhee Ko, Mingming Fu, Yifan Yang, Kun Zhao, Scott R. Crittenden, E. W. Plummer, Rongying Jin, Zheng Gai
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-7 (2022)
Abstract Single crystalline BaMnSb2 is considered as a 3D Weyl semimetal with the 2D electronic structure containing Dirac cones from the Sb sheet. We report experimental investigation of low-temperature cleaved BaMnSb2 surfaces using scanning tunnel
Externí odkaz:
https://doaj.org/article/1930680a79a4414a95dbc21a63f326f9
Publikováno v:
Frontiers in Materials, Vol 9 (2022)
Electron transport in topological insulators usually involves both topologically protected surface states and trivial electronic states in the bulk material. The surface transport is particularly interesting; however, it is also susceptible to atomic
Externí odkaz:
https://doaj.org/article/6d5e97f3bed846ee8a15654cbea24ac9
Autor:
Mahmut S. Kavrik, Jordan A. Hachtel, Wonhee Ko, Caroline Qian, Alex Abelson, Eyup B. Unlu, Harshil Kashyap, An-Ping Li, Juan C. Idrobo, Matt Law
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-1 (2022)
Externí odkaz:
https://doaj.org/article/cdcb199ec31f4f44b6eb400afe9edcd2
Autor:
Wonhee Ko, Hyo Won Kim, Yeonchoo Cho, JiYeon Ku, Hyeokshin Kwon, Youngtek Oh, Jin-Wook Jung, Insu Jeon, Hwansoo Suh, Young Kuk, Sung Woo Hwang
Publikováno v:
AIP Advances, Vol 10, Iss 8, Pp 085325-085325-6 (2020)
Intrinsic defects in graphitic materials, like vacancies and edges, have been expected to possess magnetic states from the many-body interaction of localized electrons. However, charge screening from graphite bulk carriers significantly reduces the l
Externí odkaz:
https://doaj.org/article/a5a56a4a02dd406f9b987a9ef12a28da
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033248 (2021)
We present a method to identify distinct tunneling modes in a tunable superconducting tunnel junction composed of a superconducting tip and a sample in a scanning tunneling microscope. Combining the relative decay constant of tunneling current extrac
Externí odkaz:
https://doaj.org/article/21eb9dfacc9940fd8809d1d8ba882a5e
Autor:
Sang Yong Song, Chengyun Hua, Luke Bell, Wonhee Ko, Hans Fangohr, Jiaqiang Yan, Gábor B. Halász, Eugene F. Dumitrescu, Benjamin J. Lawrie, Petro Maksymovych
Publikováno v:
Nano Letters
New pathways to controlling the morphology of superconducting vortex lattices─and their subsequent dynamics─are required to guide and scale vortex world-lines into a computing platform. We have found that the nematic twin boundaries align superco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d22b9051d3f2d6a4e3acd1a512cf203
https://hdl.handle.net/21.11116/0000-000C-CED3-E21.11116/0000-000C-CED5-C21.11116/0000-000C-CED6-B
https://hdl.handle.net/21.11116/0000-000C-CED3-E21.11116/0000-000C-CED5-C21.11116/0000-000C-CED6-B
