Angle-resolved photoemission spectroscopy and its application to topological materials
Angle-resolved photoemission spectroscopy (ARPES)—an experimental technique based
on the photoelectric effect—is arguably the most powerful method for probing the electronic …
on the photoelectric effect—is arguably the most powerful method for probing the electronic …
Femtosecond electron-phonon lock-in by photoemission and x-ray free-electron laser
The interactions that lead to the emergence of superconductivity in iron-based materials
remain a subject of debate. It has been suggested that electron-electron correlations …
remain a subject of debate. It has been suggested that electron-electron correlations …
Theoretical understanding of photon spectroscopies in correlated materials in and out of equilibrium
Photon-based spectroscopies have had a significant impact on both fundamental science
and applications by providing an efficient approach to investigate the microscopic physics of …
and applications by providing an efficient approach to investigate the microscopic physics of …
Light-induced enhancement of superconductivity in iron-based superconductor FeSe0.5Te0.5
Illumination of light on matter normally causes heating and destroys the ordered ground
states. Despite this common understanding, recent advances in ultrafast light sources have …
states. Despite this common understanding, recent advances in ultrafast light sources have …
Ultrafast Dynamics Evidence of High Temperature Superconductivity in Single Unit Cell FeSe on
We report the time-resolved excited state ultrafast dynamics of single unit cell (1 UC) thick
FeSe films on SrTiO 3 (STO), with FeTe cap** layers. By measuring the photoexcited …
FeSe films on SrTiO 3 (STO), with FeTe cap** layers. By measuring the photoexcited …
Interface-enhanced electron-phonon coupling and high-temperature superconductivity in potassium-coated ultrathin FeSe films on
Alkali-metal (potassium) adsorption on FeSe thin films with thickness from 2 unit cells (UC)
to 4 UC on SrTi O 3 grown by molecular beam epitaxy is investigated with a low-temperature …
to 4 UC on SrTi O 3 grown by molecular beam epitaxy is investigated with a low-temperature …
Coherent phonons in correlated quantum materials
Y Zhai, P Gong, J Hasaien, F Zhou, J Zhao - Progress in Surface Science, 2024 - Elsevier
We briefly review a few recent progresses of the ultrafast generation and detection of
coherent phonons in various types of quantum materials. Both the shared properties and …
coherent phonons in various types of quantum materials. Both the shared properties and …
Photoinduced possible superconducting state with long-lived disproportionate band filling in FeSe
Photoexcitation is a very powerful way to instantaneously drive a material into a novel
quantum state without any fabrication, and variable ultrafast techniques have been …
quantum state without any fabrication, and variable ultrafast techniques have been …
Effects of surface electron do** and substrate on the superconductivity of epitaxial FeSe films
Superconductivity in FeSe is greatly enhanced in films grown on SrTiO3 substrates,
although the mechanism behind remains unclear. Recently, surface potassium (K) do** …
although the mechanism behind remains unclear. Recently, surface potassium (K) do** …
Mode-selective coupling of coherent phonons to the Bi2212 electronic band structure
Cuprate superconductors host a multitude of low-energy optical phonons. Using time-and
angle-resolved photoemission spectroscopy, we study coherent phonons in Bi 2 Sr 2 Ca …
angle-resolved photoemission spectroscopy, we study coherent phonons in Bi 2 Sr 2 Ca …