Search Results - "Choi, Jun Sang"

Nonequilibrium Fractional Josephson Effect by Lahiri, Aritra, Choi, Sang-Jun, Trauzettel, Björn

“…Josephson tunnel junctions exhibit a supercurrent typically proportional to the sine of the superconducting phase difference ϕ. In general, a term proportional…”
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Spectroscopic studies of atomic defects and bandgap renormalization in semiconducting monolayer transition metal dichalcogenides by Jeong, Tae Young, Kim, Hakseong, Choi, Sang-Jun, Watanabe, Kenji, Taniguchi, Takashi, Yee, Ki Ju, Kim, Yong-Sung, Jung, Suyong

“…Assessing atomic defect states and their ramifications on the electronic properties of two-dimensional van der Waals semiconducting transition metal…”
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Topological and holonomic quantum computation based on second-order topological superconductors by Zhang, Song-Bo, Rui, W. B., Calzona, Alessio, Choi, Sang-Jun, Schnyder, Andreas P., Trauzettel, Björn

“…Majorana fermions feature non-Abelian exchange statistics and promise fascinating applications in topological quantum computation. Recently, second-order…”
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Direct probing of phonon mode specific electron–phonon scatterings in two-dimensional semiconductor transition metal dichalcogenides by Lee, Duk Hyun, Choi, Sang-Jun, Kim, Hakseong, Kim, Yong-Sung, Jung, Suyong

“…Electron–phonon scatterings in solid-state systems are pivotal processes in determining many key physical quantities such as charge carrier mobilities and…”
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In Situ Observation of Voltage-Induced Multilevel Resistive Switching in Solid Electrolyte Memory by Choi, Sang-Jun, Park, Gyeong-Su, Kim, Ki-Hong, Cho, Soohaeng, Yang, Woo-Young, Li, Xiang-Shu, Moon, Jung-Hwan, Lee, Kyung-Jin, Kim, Kinam

“…Solid electrolyte memories utilizing voltage‐induced resistance change display the capability of multilevel switching, but understanding of the microscopic…”
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Dirac states in an inclined two-dimensional Su-Schrieffer-Heeger model by Li, Chang-An, Choi, Sang-Jun, Zhang, Song-Bo, Trauzettel, Björn

“…We propose to realize Dirac states in an inclined two-dimensional Su-Schrieffer-Heeger model on a square lattice. We show that a pair of Dirac points protected…”
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Inductively Coupled Pulsed Plasmas in the Presence of Synchronous Pulsed Substrate Bias for Robust, Reliable, and Fine Conductor Etching by Banna, S., Agarwal, A., Tokashiki, K., Hong Cho, Rauf, S., Todorow, V., Ramaswamy, K., Collins, K., Stout, P., Jeong-Yun Lee, Junho Yoon, Kyoungsub Shin, Sang-Jun Choi, Han-Soo Cho, Hyun-Joong Kim, Changhun Lee, Lymberopoulos, D.

“…Inductively coupled pulsed plasmas in the presence of synchronous pulsed substrate bias are characterized in a commercial plasma etching reactor for conductor…”
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Microscopic Quantum Transport Processes of Out‐of‐Plane Charge Flow in 2D Semiconductors Analyzed by a Fowler–Nordheim Tunneling Probe by Shin, Dong Hoon, Lee, Duk Hyun, Choi, Sang‐Jun, Kim, Seonyeong, Kim, Hakseong, Watanabe, Kenji, Taniguchi, Takashi, Campbell, Eleanor E. B., Lee, Sang Wook, Jung, Suyong

“…Weak interlayer couplings at 2D van der Waals (vdW) interfaces fundamentally distinguish out‐of‐plane charge flow, the information carrier in vdW‐assembled…”
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Magnetic topological transistor exploiting layer-selective transport by Sun, Hai-Peng, Li, Chang-An, Choi, Sang-Jun, Zhang, Song-Bo, Lu, Hai-Zhou, Trauzettel, Björn

“…We propose a magnetic topological transistor based on MnBi_{2}Te_{4}, in which the “on” state (quantized conductance) and the “off” state (zero conductance)…”
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Nanomechanical cat states generated by a dc voltage-driven Cooper pair box qubit by Radić, Danko, Choi, Sang-Jun, Park, Hee Chul, Suh, Junho, Shekhter, Robert I., Gorelik, Leonid Y.

“…We study a nanoelectromechanical system consisting of a Cooper pair box qubit performing nanomechanical vibrations between two bulk superconductors. We…”
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Unified switching mechanism for reversible change between unipolar and bipolar switching modes of oxide resistive switching memory devices by Choi, Sang-Jun, Kim, Ki-Hong, Yang, Woo-Young, Kim, Sohyeon, Oh, Semi, Kim, Kyoung-Kook, Kim, Yunkyung, Hong, Minki, Nam, Kiyoung, Cho, Soohaeng

“…We demonstrate the coexistence of the unipolar and bipolar switching behaviors in a single oxide resistive device composed of Pt-CuO 0.8 -W structure and we…”
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Emergent localized states at the interface of a twofold PT -symmetric lattice by Ryu, Jung-Wan, Myoung, Nojoon, Go, Ara, Woo, Sungjong, Choi, Sang-Jun, Park, Hee Chul

“…We consider the role of nontriviality resulting from a non-Hermitian Hamiltonian without band topology that conserves twofold PT symmetry assembled by…”
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Microscopic Theory of the Current-Voltage Characteristics of Josephson Tunnel Junctions by Choi, Sang-Jun, Trauzettel, Björn

“…Deep theoretical understanding of the electrical response of Josephson junctions is indispensable regarding both recent discoveries of new kinds of…”
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Highly Efficient, Flexible, and Recyclable Air Filters Using Polyimide Films with Patterned Thru-Holes Fabricated by Ion Milling by Choi, Sang-Jun, Kim, Kyung, Kim, Hyun, Yoon, Jun, Lee, Mi, Choi, Kyung-Suk, Sung, Ung-Dae, Park, Won-Taek, Lee, Jeongjun, Jeon, Jihyun, Im, Jaehyuk, Kim, Kyoung-Kook, Cho, Soohaeng

“…We present the first demonstration of the environmental application of a polyimide film (Kapton) with patterned thru-holes as a novel, efficient, flexible,…”
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Gain Compression and Thermal Analysis of a Sapphire-Bonded Photonic Crystal Microcavity Laser by Ling Lu, Mock, A., Bagheri, M., Jiang-Rong Cao, Sang-Jun Choi, O'Brien, J., Dapkus, P.D.

“…Gain compression factor and thermal properties of a photonic crystal microcavity laser bonded on a sapphire substrate are extracted by analyzing wavelength…”
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Microcavity Laser Linewidth Close to Threshold by Bagheri, M., Min Hsiung Shih, Sang Jun Choi, O'Brien, J.D., Dapkus, P.D.

“…Microcavity laser linewidth behavior close to the threshold transition region is investigated through high-resolution linewidth measurements. A local maximum…”
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Modeling of a Parameter to Evaluate Multilevel Operation of Bipolar Oxide Resistive Device by Choi, Sang-Jun, Kim, Ki-Hong, Yang, Woo-Young, Cho, Soohaeng

“…We propose a simple and efficient model using a phenomenological fitting parameter for current-voltage sweeps to describe vacancy dynamics in oxide resistive…”
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Tunable narrow linewidth all-buried heterostructure ring resonator filters using vernier effects by Choi, S.J., Zhen Peng, Qi Yang, Sang Jun Choi, Dapkus, P.D.

“…Channel configurable optical filters are realized by using buried heterostructure semiconductor ring resonators. Two rings having slightly different radii are…”
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Microdisk tunable resonant filters and switches by Djordjev, K., Seung-June Choi, Sang-Jun Choi, Dapkus, R.D.

“…Tunable, vertically coupled InP microdisk resonant filters having a p-i-n active region and utilizing free carrier injection (FCI) to alter the index of…”
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Sapphire-bonded photonic Crystal microcavity lasers and their far-field radiation patterns by Cao, J.R., Wan Kuang, Zhi-Jian Wei, Sang-Jun Choi, Haixia Yu, Bagheri, M., O'Brien, J.D., Dapkus, P.D.

“…Room-temperature continuous-wave lasing was demonstrated in photonic crystal microcavities with diameters of approximately 3.2 μm. Far-field radiation patterns…”
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