Recent development of ultrafast optical characterizations for quantum materials
The advent of intense ultrashort optical pulses spanning a frequency range from terahertz to
the visible has opened a new era in the experimental investigation and manipulation of …
the visible has opened a new era in the experimental investigation and manipulation of …
Review of the theoretical description of time‐resolved angle‐resolved photoemission spectroscopy in electron‐phonon mediated superconductors
We review recent work on the theory for pump/probe photoemission spectroscopy of
electron‐phonon mediated superconductors in both the normal and the superconducting …
electron‐phonon mediated superconductors in both the normal and the superconducting …
Ultrafast dynamics evidence of strong coupling superconductivity in LaH10±δ
YL Wu, XH Yu, JZL Hasaien, F Hong, PF Shan… - Nature …, 2024 - nature.com
Recently, tremendous research interest has been aroused in clathrate superhydrides.
However, their microscopic properties, especially the superconducting (SC) gap and …
However, their microscopic properties, especially the superconducting (SC) gap and …
Tracking Cooper pairs in a cuprate superconductor by ultrafast angle-resolved photoemission
In high-temperature superconductivity, the process that leads to the formation of Cooper
pairs, the fundamental charge carriers in any superconductor, remains mysterious. We used …
pairs, the fundamental charge carriers in any superconductor, remains mysterious. We used …
Ultrafast quasiparticle dynamics and electron-phonon coupling in (Li0. 84Fe0. 16) OHFe0. 98Se
Distinctive superconducting behaviors between bulk and monolayer FeSe make it
challenging to obtain a unified picture of all FeSe-based superconductors. We investigate …
challenging to obtain a unified picture of all FeSe-based superconductors. We investigate …
Ultrafast Modulation of the Chemical Potential in by Coherent Phonons
Time-and angle-resolved extreme ultraviolet photoemission spectroscopy is used to study
the electronic structure dynamics in BaFe 2 As 2 around the high-symmetry points Γ and M …
the electronic structure dynamics in BaFe 2 As 2 around the high-symmetry points Γ and M …
Ultrafast optical spectroscopy evidence of pseudogap and electron-phonon coupling in an iron-based superconductor KCa2Fe4As4F2
C Zhang, QY Wu, WS Hong, H Liu, SX Zhu… - Science China Physics …, 2022 - Springer
We use ultrafast optical spectroscopy to study the nonequilibrium quasiparticle relaxation
dynamics of the iron-based superconductor KCa2Fe4As4F2 with T c= 33.5 K. Our results …
dynamics of the iron-based superconductor KCa2Fe4As4F2 with T c= 33.5 K. Our results …
Do** dependence of femtosecond quasiparticle relaxation dynamics in Ba(Fe,Co)As single crystals: Evidence for normal-state nematic fluctuations
We systematically investigate the photoexcited (PE) quasiparticle (QP) relaxation and low-
energy electronic structure in electron doped Ba (Fe 1− x Co x) 2 As 2 single crystals as a …
energy electronic structure in electron doped Ba (Fe 1− x Co x) 2 As 2 single crystals as a …
Imaging coherent phonons and precursor dynamics in LaFeAsO with 4D ultrafast electron microscopy
We used 4D ultrafast electron microscopy (UEM) to directly image femtosecond
photoinduced structural dynamics in single-crystal LaFeAsO at initial temperatures of 300 …
photoinduced structural dynamics in single-crystal LaFeAsO at initial temperatures of 300 …
Coexistence of ferromagnetism and superconductivity in iron based pnictides: a time resolved magnetooptical study
Ferromagnetism and superconductivity are antagonistic phenomena. Their coexistence
implies either a modulated ferromagnetic order parameter on a lengthscale shorter than the …
implies either a modulated ferromagnetic order parameter on a lengthscale shorter than the …