3.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Academia SinicaTW101 papers
- National Taiwan UniversityTW96 papers
- National Center for Theoretical SciencesTW48 papers
- National Center for Theoretical Sciences, Physics Division40 papers
- Institute of Physics, Academia SinicaTW38 papers
- National Tsing Hua UniversityTW26 papers
- Georgia Institute of TechnologyUS25 papers
- National Central UniversityTW17 papers
- National Taiwan Normal UniversityTW15 papers
- National Cheng Kung UniversityTW14 papers
- Lawrence Berkeley National LaboratoryUS13 papers
- Indira Gandhi Centre for Atomic ResearchIN10 papers
43 papers · 1 filter
Evolution of topological phases in atomically thin WTe2 films
Changcang Qiao, Chen-Chia Hsu, Tao Zhang +4
Topological materials ranging from topological insulators to semimetals host many novel quantum phenomena including quantum spin Hall effect and topological Fermi arcs. Transitions…
Observation of possible excitonic charge density waves and metal-insulator transitions in atomically thin semimetals
Qiang Gao, Yang-hao Chan, Pengfei Jiao +9
Charge density wave (CDW) is a collective quantum phenomenon with a charge modulation in solids1-2. Condensation of electron and hole pairs with finite momentum will lead to such a…
Engineering the strain and interlayer excitons of 2D materials via lithographically engraved hexagonal boron nitride
Yu-Chiang Hsieh, Zhen-You Lin, Shin-Ji Fung +11
Strain engineering has quickly emerged as a viable option to modify the electronic, optical and magnetic properties of 2D materials. However, it remains challenging to arbitrarily…
Origin of magic angles in twisted bilayer graphene: The magic ring
Wei-Chen Wang, Feng-Wu Chen, Kuan-Sen Lin +3
The unexpected discovery of superconductivity and strong electron correlation in twisted bilayer graphene (TBG), a system containing only sp electrons, is considered as one of the…
Large shift current via in-gap and charge-neutral exciton excitations in BN nanotubes and single BN layer
Yi-Shiuan Huang, Yang-Hao Chan, Guang-Yu Guo
We perform {\it ab initio} many-body calculations to investigate the exciton shift current in small diameter zigzag BN nanotubes and also single BN sheet, using the GW plus Bethe-S…
Many-Body Coherence in Quantum Transport
Ching-Chi Hang, Liang-Yan Hsu
In this study, we propose the concept of harnessing quantum coherence to control electron transport in a many-body system. Combining an open quantum system technique based on Hubba…
Dimensional crossover and symmetry transformation of the charge density waves in VSe2
P. Chen, Y. -H. Chan, R. -Y. Liu +5
Collective phenomena in solids can be sensitive to the dimensionality of the system; a case of special interest is VSe2, which shows a (r7 x r3) charge density wave (CDW) in the si…
Evidence of high-temperature exciton condensation in a two-dimensional semimetal
Qiang Gao, Yang-hao Chan, Yuzhe Wang +10
Electrons and holes can spontaneously form excitons and condense in a semimetal or semiconductor, as predicted decades ago. This type of Bose condensation can happen at much higher…
All-electrical valley filtering in graphene systems (I): A path to integrated electro-valleytronics
Feng-Wu Chen, Nin-Yuan Lue, Mei-Yin Chou +1
Probing and controlling the valley degree of freedom in graphene systems by transport measurements has been a major challenge to fully exploit the unique properties of this two-dim…
Light Induced Negative Differential Conductance in Molecular Junctions: Role of Triplet States and Electron-Phonon Interaction
Amir Eskandari-asl
In this work we theoretically consider the OPE-3 molecule bridging two metallic leads and show that because of the electron-phonon interaction and the transition of cation to tripl…
Role of Nearly-Degenerate Vibrational Modes in Electron Transport through a Molecular Junction
Amir Eskandari-asl
We consider an open molecular junction in which electrons are coupled to multi-mode phonons. Using a master equation approach for equilibrated phonons, we show that nearly-degenera…
Epitaxial Growth of Two-dimensional Insulator Monolayer Honeycomb BeO
Hui Zhang, Madisen Holbrook, Fei Cheng +7
The emergence of two-dimensional (2D) materials launched a fascinating frontier of flatland electronics. Most crystalline atomic layer materials are based on layered van der Waals…
Oxidized-monolayer Tunneling Barrier for Strong Fermi-level Depinning in Layered InSe Transistors
Yi-Hsun Chen, Chih-Yi Cheng, Shao-Yu Chen +9
In 2D-semiconductor-based field-effect transistors and optoelectronic devices, metal-semiconductor junctions are one of the crucial factors determining device performance. The Ferm…
Probing plasmon-NV coupling at the nanometer scale with photons and fast electrons
H. Lourenço-Martins, M. Kociak, S. Meuret +5
The local density of optical states governs an emitters lifetime and quantum yield through the Purcell effect. It can be modified by a surface plasmon electromagnetic field, but su…
Unique gap structure and symmetry of the charge density wave in single-layer VSe
P. Chen, W. -W. Pai, Y. -H. Chan +5
Single layers of transition metal dichalcogenides (TMDCs) are excellent candidates for electronic applications beyond the graphene platform; many of them exhibit novel properties i…
Magnetic-State Controlled Molecular Vibrational Dynamics at Buried Molecular-Metal Interfaces
Isidoro Martinez, Juan Pedro Cascales, Cesar Gonzalez-Ruano +5
Self-assembled molecular structures have been intensively used in molecular electronics and spintronics. However, detailed nature of the interfaces between molecular layers and ext…
Topological Properties of Gapped Graphene Nanoribbons with Spatial Symmetries
Kuan-Sen Lin, Mei-Yin Chou
To date, almost all of the discussions on topological insulators (TIs) have focused on two- and three-dimensional systems. One-dimensional (1D) TIs manifested in real materials, in…
High-performance InSe Transistors with Ohmic Contact Enabled by Nonrectifying-barrier-type Indium Electrodes
Yu-Ting Huang, Yi-Hsun Chen, Yi-Ju Ho +10
The electrical contact to two-dimensional (2D)-semiconductor materials are decisive to the electronic performance of 2D-semiconductor field-effect devices (FEDs). The presence of a…
Quantum-spin-Hall insulator with a large gap: single-layer 1T' WSe
P. Chen, W. -W. Pai, Y. -H. Chan +6
Two-dimensional (2D) topological insulators (TIs) are promising platforms for low-dissipation spintronic devices based on the quantum spin Hall (QSH) effect, but experimental reali…
Emergence of charge density waves and a pseudogap in single-layer TiTe2
P. Chen, Woei Wu Pai, Y. -H. Chan +8
Two-dimensional materials constitute a promising platform for developing nanoscale devices and systems. Their physical properties can be very different from those of the correspond…
Topological band crossings in hexagonal materials
Jonathan Zhang, Y. -H. Chan, Ching-Kai Chiu +3
Topological semimetals exhibit band crossings near the Fermi energy, which are protected by the nontrivial topological character of the wave functions. In many cases, these topolog…
Tuning Rashba Spin-Orbit Coupling in Gated Multilayer InSe
Kasun Premasiri, Santosh Kumar Radha, Sukrit Sucharitakul +5
Manipulating the electron spin with the aid of spin-orbit coupling (SOC) is an indispensable element of spintronics. Electrostatically gating a material with strong SOC results in…
Electrical valley filtering in transition metal dichalcogenides
Tzu-Chi Hsieh, Mei-Yin Chou, Yu-Shu Wu
This work investigates the feasibility of electrical valley filtering for holes in transition metal dichalcogenides. We look specifically into the scheme that utilizes a potential…
Shot noise in magnetic tunneling structures with two-level quantum dots
T. Szczepanski, V. K. Dugaev, J. Barnas +5
We analyze shot noise in a magnetic tunnel junction with a two-level quantum dot attached to the magnetic electrodes. The considerations are limited to the case when some transport…