A5046369398- Quantum and electron transport phenomena
- Graphene research and applications
- Topological Materials and Phenomena
- 2D Materials and Applications
- Physics of Superconductivity and Magnetism
- Quantum Information and Cryptography
- Semiconductor materials and devices
- Molecular Junctions and Nanostructures
- MXene and MAX Phase Materials
- Quantum optics and atomic interactions
- Ferroelectric and Negative Capacitance Devices
- Electronic and Structural Properties of Oxides
- Advanced Chemical Physics Studies
- Advancements in Semiconductor Devices and Circuit Design
- Graphene and Nanomaterials Applications
National Sun Yat-sen University
2019-2025
University of Science and Technology of China
2018-2020
CAS Key Laboratory of Urban Pollutant Conversion
2018
Massachusetts Institute of Technology
2016
Integrating two-dimensional (2D) materials into circuit quantum electrodynamics (cQED) devices is an emerging field in recent years. This integration not only facilitates the exploration of potential applications information processing but also enables study material's fundamental properties using microwave techniques. While most studies employ 2D coplanar architectures with scalability potential, three-dimensional (3D) cavity-based cQED devices, due to their simpler design, offer advantage...
Abstract In this perspective article, we review the current state of research on integrating quantum materials (QMs) into superconducting devices. We begin with role QMs as weak links in Josephson junctions (JJs), enabling gate- and flux-tunable transmons. then explore their application more complex circuits, such gate-tunable fluxonium qubits, or gatemonium, which provide additional control over qubit parameters. also discuss QM-based vertical potential for creating merged-element Further,...
Weyl semimetals have drawn considerable attention for their exotic topological properties in many research fields. When combination with s-wave superconductors, the supercurrent can be carried by surface channels, forming junctions mimicking behavior of Majorana bound states. Here, we present a transmon-like superconducting quantum intereference device (SQUID) consisting lateral made semimetal Td–MoTe2 and leads niobium nitride (NbN). The SQUID is coupled to readout cavity molybdenum rhenium...
Electron transport in a graphene quantum well can be analogous to photon transmission an optical fiber. In this work, we present detailed theoretical analysis study the characteristics of waveguides under influence different edge orientations. Non-equilibrium Green's function approach combination with tight-binding Hamiltonian has been utilized investigate conductance properties straight armchair and zigzag oriented waveguides. Conductance plateaus at integer steps $4e^2/h$ have observed...
We performed a series of theoretical transport studies on Y-branch electron waveguides which are embedded in mid-size armchair graphene nanoribbons (AGNRs). Non-equilibrium Greens function (NEGF) with different approximations tight-binding (TB) Hamiltonian has been employed. Using the first nearest hopping approximation, we observed very pronounced conductance quantization, structure depends geometrical design and shows spacing $4e^2/h$, indicating existence valley degree freedom. Moreover,...
Monolayer transition-metal dichalcogenides (TMDs) are considered to be fantastic building blocks for a wide variety of optical and optoelectronic devices such as sensors, photodetectors, quantum emitters, owing their direct band gap, transparency, mechanical flexibility. The core element many conventional electronic is the p–n junction, in which p- n-types semiconductor formed by chemical doping different regions. Here, we report series studies on monolayer WSe2 in-plane photodetector,...
Abstract Over the last decade, quantum computing has experienced significant changes and captured worldwide attention. In particular, superconducting qubits have become leading candidates for scalable computers, a number of cryogenic materials scientifically demonstrated their potential uses in constructing qubit chips. However, because insufficient coherence time, establishing robust platform is still long-term goal. Another consideration control circuits essential to initializing,...
Achieving self-consistent convergence with the conventional effective-mass approach at ultra-low temperatures (below 4.2 K) is a challenging task, which mostly lies in discontinuities material properties (e.g. effective-mass, electron affinity, dielectric constant). In this article, we develop novel based on cell-centered finite-volume discretization of Sturm-Liouville form Schrödinger equation and generalized Poisson's (FV-SP). We apply to simulate one-dimensional gas formed...
Transmon-type superconducting qubits have become a popular platform for quantum computing due to their robust qubit coherence properties. In recent years, different types of materials been searched replace the Al 2 O 3 tunnel barrier in conventional Al-based Josephson junctions, order explore new functions utilizing distinct nature chosen materials. this report, we introduce our works involving using Weyl semimetals and graphene as component junctions designs coupling coplanar waveguide...
Correlation between transmon and its composite Josephson junctions (JJ) plays an important role in designing new types of superconducting qubits based on quantum materials. It is desirable to have a type device that not only allows exploration for use information processing but also probing intrinsic properties the JJs. Here, we construct flux-tunable 3D transmon-type circuit made graphene as proof-of-concept prototype device. This enables coupling cavities microwave probes permits DC...
Achieving self-consistent convergence for conventional effective-mass approaches at ultralow temperatures (below 4.2 K) is a challenging task, which mostly lies in the discontinuities material properties (e.g., effective-mass, electron affinity, dielectric constant). In this article, we develop novel self consistent approach based on cell centered Finite Volume discretization of Sturm-Liouville form effective mass Schrodinger equation and generalized Poisson's (FV-SP). We apply to simulate...