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32 papers · 1 filter
Neural network-based recognition of multiple nanobubbles in graphene
Subin Kim, Nojoon Myoung, Seunghyun Jun +1
We present a machine learning method for swiftly identifying nanobubbles in graphene, crucial for understanding electronic transport in graphene-based devices. Nanobubbles cause lo…
Alternative understanding of the skyrmion Hall effect based on one-dimensional domain wall motion
Kyoung-Woong Moon, Jungbum Yoon, Changsoo Kim +4
A moving magnetic skyrmion exhibits transverse deflection. This so-called skyrmion Hall effect has been explained by the Thiele equation. Here, we provide an alternative interpreta…
Topological charge analysis of dynamic process of transition to Néel-type skyrmion: role of domain wall skyrmions
Soong-Geun Je
Magnetic skyrmions are intriguing topological spin textures that promise future high-density spintronic devices. The creation of magnetic skyrmions has been understood based on the…
Thermal generation, manipulation and detection of skyrmions
Zidong Wang, Minghua Guo, Heng-An Zhou +19
Recent years have witnessed significant progresses in realizing skyrmions in chiral magnets1-4 and asymmetric magnetic multilayers5-13, as well as their electrical manipulation2,7,…
Electric Aharonov-Bohm effect without a loop in a Cooper pair box
Young-Wan Kim, Kicheon Kang
We predict the force-free scalar Aharonov-Bohm effect of a Cooper pair box in an electric field at a distance without forming a closed path of the interfering charges. The superpos…
Vacuum-fluctuation-induced Dephasing of a Qubit in Circuit Quantum Electrodynamics
Young-Wan Kim, Kang-Ho Lee, Kicheon Kang
We investigate the measurement-induced dephasing of a qubit coupled with a single-mode cavity in the vacuum limit. Dephasing of the qubit state takes place through the ntanglement…