A5103010714- Advanced Condensed Matter Physics
- Physics of Superconductivity and Magnetism
- Magnetic and transport properties of perovskites and related materials
- Quantum Information and Cryptography
- Quantum Computing Algorithms and Architecture
- Magnetic properties of thin films
- Quantum and electron transport phenomena
Institute of Physics
2021-2024
National Laboratory for Superconductivity
2022
Chinese Academy of Sciences
2021-2022
University of Chinese Academy of Sciences
2021-2022
Bloch oscillations (BOs) are of electrons under external constant forces in a lattice, revealing the wavelike behavior electrons. BOs lead to localization wave packet that is called Wannier-Stark (WSL), resulting inhibition conductivity. We simulate experimentally one-dimensional superconducting circuit with nine qubits. The qubits form lattice and an electron mapped photon. realize coherent control by applying well-controlled driving force frequency close BOs. observe competition between...
We performed systematic angle-resolved photoemission spectroscopy measurements $in$-$situ$ on $T'$-${\rm La}_{2-x}{\rm Ce}_x\rm {CuO}_{4\pm\delta}$ (LCCO) thin films over the extended doping range prepared by refined ozone/vacuum annealing method. Electron level ($n$), estimated from measured Fermi surface volume, varies 0.05 to 0.23, which covers whole superconducting dome. observed an absence of insulating behavior around $n \sim$ and reconstruction shifted 0.11 in LCCO compared that other...
Abstract Angle-resolved photoemission spectroscopy (ARPES) measurements have established the phenomenon of kink in band dispersion high- T c cuprate superconductors. However, systematic studies electron-doped cuprates are still lacking experimentally. We performed situ ARPES on La 2− x Ce CuO 4±δ (LCCO) thin films over a wide electron doping ( n ) range from 0.05 to 0.23. While nodal is nearly invisible, an antinodal around 45 meV, surviving above 200 K, observed for ~ 0.05–0.19, whose...
Angle-resolved photoemission spectroscopy (ARPES) measurements have established the phenomenon of kink in band dispersion high-$T_{\rm c}$ cuprate superconductors. However, systematic studies electron-doped cuprates are still lacking experimentally. We performed $in$-$situ$ ARPES on ${\rm La}_{2-x}{\rm Ce}_x{\rm CuO}_{4\pm\delta}$ (LCCO) thin films over a wide electron doping ($n$) range from 0.05 to 0.23. While nodal is nearly invisible, an antinodal around 45 meV, surviving above 200 K,...