A5050088432- Galaxies: Formation, Evolution, Phenomena
- Iron-based superconductors research
- Stellar, planetary, and galactic studies
- Astrophysics and Cosmic Phenomena
- Multiferroics and related materials
- Surface and Thin Film Phenomena
- Gamma-ray bursts and supernovae
- Adaptive optics and wavefront sensing
- Physics of Superconductivity and Magnetism
- Astro and Planetary Science
- Astrophysics and Star Formation Studies
- Magnetic and transport properties of perovskites and related materials
University of Victoria
2024
Tsinghua University
2015-2022
Canadian Institute for Theoretical Astrophysics
2022
University of Toronto
2022
State Key Laboratory of Low-Dimensional Quantum Physics
2015
Collaborative Innovation Center of Quantum Matter
2015
Abstract Observations of protoplanetary disks have revealed the presence both crescent-shaped and ring-like structures in dust continuum emission. These crescents are thought to arise from dust-trapping vortices generated by Rossby wave instability, which induces density waves akin those caused planets. potential create gaps rings within disk, resulting dissipation their waves. We carry out 2D hydrodynamic simulations shearing box investigate vortex–disk interaction. find that long-lived can...
We report findings of strong anomalies in both mutual inductance and inelastic Raman spectroscopy measurements single-unit-cell FeSe film grown on Nb-doped ${\mathrm{SrTiO}}_{3}$, which occur near the temperature where superconductinglike energy gap opens. Analysis suggests that anomaly is associated with a broadened ferroelectric transition thin layer $\mathrm{FeSe}/{\mathrm{SrTiO}}_{3}$ interface. The coincidence gap-opening temperatures adds credence to central role played by...
The stoichiometric "111" iron-based superconductor, LiFeAs, has attacted great research interest in recent years.For the first time, we have successfully grown LiFeAs thin film by molecular beam epitaxy (MBE) on SrTiO3(001) substrate, and studied interfacial growth behavior reflection high energy electron diffraction (RHEED) low-temperature scanning tunneling microscope (LT-STM).The effects of substrate temperature Li/Fe flux ratio were investigated.Uniform as 3 quintuple-layer (QL) is...
ABSTRACT We have performed targeted searches of known extragalactic transient events at millimetre wavelengths using nine seasons (2013–2021) 98, 150, and 229 GHz Atacama Cosmology Telescope (ACT) observations that mapped ∼40 per cent the sky for most data volume. Our cover 88 gamma-ray bursts (GRBs), 12 tidal disruption (TDEs), 203 other transients, including supernovae (SNe). stack our ACT to increase signal-to-noise ratio maps. In all cases but one, we do not detect these transients in...
ABSTRACT Gravitational microlensing is unique in detecting binary black (BH) holes with wide (a few au) separations. Models predict that about 1 per cent of binaries should be due to BHs, and yet zero has been robustly identified. Using simulated events BH lenses, we show the parallax effect a typical event cannot reliably detected. Given crucial role parameter determining mass dark microlenses, this may explain non-detection BHs. Additionally, only small fraction ($\lesssim 7\ \rm{per\...