1.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute for Basic ScienceKR86 papers
- Seoul National UniversityKR79 papers
- Korea University of Science and TechnologyKR57 papers
- Kyungpook National UniversityKR52 papers
- Sejong UniversityKR51 papers
- Korea UniversityKR48 papers
- Korea Advanced Institute of Science and TechnologyKR37 papers
- Ewha Womans UniversityKR36 papers
- Sungkyunkwan UniversityKR35 papers
- The University of TokyoJP35 papers
- Yale UniversityUS30 papers
- Chung-Ang UniversityKR29 papers
62 papers · 1 filter
Unidirectional gliding of a cycloidal spin structure by an AC magnetic field
Dong Hui Han, Kyoung-Woong Moon, Kab-Jin Kim +1
The dynamics of a cycloidal spin structure driven by an AC magnetic field is theoretically studied in the weak-field limit. A specific model Hamiltonian describing the cycloidal sp…
Method for rapid estimation of the energy-time covariance matrix of single electrons
Wanki Park, Chanuk Yang, Young-Seok Ghee +3
The ability to emit and control single electrons in a dynamical manner enables their use in electron quantum optics and sensing. To characterize the electron states emitted with en…
True decoherence-free-subspace derived from a semiconductor double quantum dot Heisenberg spin-trimer
Wonjin Jang, Jehyun Kim, Jaemin Park +6
Spins in solid systems can inherently serve as qubits for quantum simulation or quantum information processing. Spin qubits are usually prone to environmental magnetic field fluctu…
Emergence of 6-particle "hexciton'' states in WS and MoSe monolayers
J. Choi, J. Li, D. Van Tuan +2
When doped with a high density of mobile charge carriers, monolayer transition-metal dichalcogenide (TMD) semiconductors can host new types of composite many-particle exciton state…
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…
Wide Effective Work-Function Tuning of Al/SiO/Si Junction Achieved with Graphene Interlayer at Al/SiO Interface
Wonho Song, Jung-Yong Lee, Junhyung Kim +7
The effective work-function of metal electrode is one of the major factors to determine the threshold voltage of metal/oxide/semiconductor junction. In this work, we demonstrate ex…
Direct probing of phonon mode specific electron-phonon scatterings in two-dimensional semiconductor transition metal dichalcogenides: Symmetry and Berry phase
Duk Hyun Lee, Sang-Jun Choi, Hakseong Kim +2
Electron-phonon scatterings in solid-state systems are pivotal processes in determining many key physical quantities such as charge carrier mobilities and thermal conductivities. H…
Key points in the determination of the interfacial Dzyaloshinskii-Moriya interaction from asymmetric bubble domain expansion
A. Magni, G. Carlotti, A. Casiraghi +18
Different models have been used to evaluate the interfacial Dzyaloshinskii-Moriya interaction (DMI) from the asymmetric bubble expansion method using magneto-optics. Here we invest…
Valley Depolarization in Monolayer Transition-Metal Dichalcogenides with Zone-Corner Acoustic Phonons
Tae-Young Jeong, Soungmin Bae, Seong-Yeon Lee +3
Although single-layer transition-metal dichalcogenides with novel valley functionalities are promising candidate to realize valleytronic devices, the essential understanding of val…
Robust quantum point contact operation of narrow graphene constrictions patterned by AFM cleavage lithography
Péter Kun, Bálint Fülöp, Gergely Dobrik +5
Detecting conductance quantization in graphene nanostructures turned out more challenging than expected. The observation of well-defined conductance plateaus through graphene nanoc…
Realization of 5 h/e^2 with graphene quantum Hall resistance array
Jaesung Park, Wan-Seop Kim, Dong-Hun Chae
We report on realization of 10 quantum Hall devices in series fabricated using epitaxial graphene on silicon carbide. Precision measurements with a resistance bridge indicates that…
Edge-functionalization of armchair graphene nanoribbons with pentagonal-hexagonal edge structures
Junga Ryou, Jinwoo Park, Gunn Kim +1
Using density functional theory calculations, we have studied the edge-functionalization of armchair graphene nanoribbons (AGNRs) with pentagonal-hexagonal edge structures. While t…
The dynamics of a domain wall in ferrimagnets driven by spin-transfer torque
Dong-Hyun Kim, Duck-Ho Kim, Kab-Jin Kim +4
The spin-transfer-torque-driven (STT-driven) dynamics of a domain wall in an easy-axis rare-earth transition-metal ferrimagnet is investigated theoretically and numerically in the…
Energy dissipation in van der Waals two-dimensional devices
Zhun-Yong Ong, Myung-Ho Bae
Understanding the physics underlying energy dissipation is necessary for the effective thermal management of devices based on two-dimensional (2D) materials and requires insights i…
Spontaneous doping of the basal plane of MoS2 single-layers through oxygen substitution under ambient conditions
János Pető, Tamás Ollár, Péter Vancsó +6
The chemical inertness of the defect-free basal plane confers environmental stability to MoS2 single-layers, but it also limits their chemical versatility and catalytic activity. T…
Nanomechanical characterization of quantum interference in a topological insulator nanowire
Minjin Kim, Jihwan Kim, Yasen Hou +5
The discovery of two-dimensional gapless Dirac fermions in graphene and topological insulators (TI) has sparked extensive ongoing research toward applications of their unique elect…
Evidence for universality of tunable-barrier electron pumps
Stephen P. Giblin, Akira Fujiwara, Gento Yamahata +5
We review recent precision measurements on semiconductor tunable-barrier electron pumps operating in a ratchet mode. Seven studies on five different designs of pumps have reported…
Thermal Transport Across Graphene Step Junctions
Miguel Munoz Rojo, Zuanyi Li, Charles Sievers +8
Step junctions are often present in layered materials, i.e. where single-layer regions meet multi-layer regions, yet their effect on thermal transport is not understood to date. He…
Double bit in-plane magnetic skyrmions on a track
Kyoung-Woong Moon, Jungbum Yoon, Changsoo Kim +1
A magnetic skyrmion isusually refers to a twisted spin texture surrounded by uniformly aligned out-of-plane spinsin the background of a uniformly magnetized state. The invariance o…
Robust operation of a GaAs tunable barrier electron pump
S. P. Giblin, M. -H. Bae, N. Kim +2
We demonstrate the robust operation of a gallium arsenide tunable-barrier single-electron pump operating with 1 part-per-million accuracy at a temperature of ~K and a pumping…
Accurate Gap Determination in Monolayer and Bilayer Graphene/h-BN Moire Superlattices
Hakseong Kim, Nicolas Leconte, Bheema L. Chittari +5
High mobility single and few-layer graphene sheets are in many ways attractive as nanoelectronic circuit hosts but lack energy gaps, which are essential to the operation of field-e…
Asymmetric skyrmion Hall effect in systems with a hybrid Dzyaloshinskii-Moriya interaction
Kyoung-Whan Kim, Kyoung-Woong Moon, Nico Kerber +2
We examine the current-induced dynamics of a skyrmion that is subject to both structural and bulk inversion asymmetry. There arises a hybrid type of Dzyaloshinskii-Moriya interacti…
Numerical Simulation of Quantized Current Generated by a Quantum Dot Pump
Ye-Hwan Ahn, Yunchul Chung
The quantized current generated by a quantum dot pump is calculated numerically. The numerical simulation is done by dividing the time varying potential into many static potentials…
Ultrafast Graphene Light Emitter
Young Duck Kim, Yuanda Gao, Ren-Jye Shiue +17
Ultrafast electrically driven nanoscale light sources are critical components in nanophotonics. Compound semiconductor-based light sources for the nanophotonic platforms have been…