Superconductivity enhancement in FeSe/SrTiO3: a review from the perspective of electron–phonon coupling

X Xu, S Zhang, X Zhu, J Guo - Journal of Physics: Condensed …, 2020 - iopscience.iop.org
Single-layer FeSe films grown on SrTiO 3, with the highest superconducting transition
temperature (TC) among all the iron-based superconductors, serves as an ideal platform for …

Electronic and superconducting properties of some FeSe-based single crystals and films grown hydrothermally

X Dong, F Zhou, Z Zhao - Frontiers in Physics, 2020 - frontiersin.org
Our recent year's studies of the prototypal FeSe and molecule-intercalated (Li, Fe) OHFeSe
superconductor systems are briefly reviewed here, with emphasis on the link between the …

Sign reversal of the order parameter in (Li1−xFex)OHFe1−yZnySe

Z Du, X Yang, D Altenfeld, Q Gu, H Yang, I Eremin… - Nature Physics, 2018 - nature.com
Iron pnictides are the only known family of unconventional high-temperature
superconductors besides cuprates. Until recently, it was widely accepted that …

Ferromagnetic interlayer coupling in superconductors revealed by inelastic neutron scattering

M Ma, P Bourges, Y Sidis, J Sun, G Wang, K Iida… - Physical Review B, 2024 - APS
FeSe 1− x S x superconductors are commonly considered layered van der Waals materials
with negligible interlayer coupling. Here, using inelastic neutron scattering to study spin …

Detection of Bosonic Mode as a Signature of Magnetic Excitation in One-Unit-Cell FeSe on SrTiO3

C Liu, Z Wang, S Ye, C Chen, Y Liu, Q Wang… - Nano …, 2019 - ACS Publications
A “fingerprint” of Cooper pairing mediated by collective bosonic excitation mode is the
reconstruction of the quasiparticle–density-of-states (DOS) spectrum with an additional “dip …

Spectroscopic Imaging of Quasiparticle Bound States Induced by Strong Nonmagnetic Scatterings in One-Unit-Cell

C Liu, Z Wang, Y Gao, X Liu, Y Liu, QH Wang, J Wang - Physical review letters, 2019 - APS
The absence of holelike Fermi pockets in the heavily electron-doped iron selenides
(HEDISs) challenges the s±-wave pairing originally proposed for iron pnictides, which …

Heterostructural one-unit-cell FeSe/SrTiO3: from high-temperature superconductivity to topological states

C Liu, J Wang - 2D Materials, 2020 - iopscience.iop.org
High-temperature superconductivity in one-unit-cell (1-UC) FeSe/SrTiO 3 heterostructure
has become a research frontier in condensed-matter physics and material science. The …

Low-energy spin excitations in superconductor studied with inelastic neutron scattering

M Ma, L Wang, P Bourges, Y Sidis, S Danilkin, Y Li - Physical Review B, 2017 - APS
We report an inelastic neutron scattering study of single crystals of (Li 0.8 Fe 0.2) ODFeSe.
Temperature-dependent low-energy spin excitations are observed near Q=(0.5, 0.27, 0.5) …

Nodeless multigap superconductivity in organic ion intercalated

J Wu, M Shi, J Shu, Z Shan, T Shiroka, D Adroja… - Physical Review B, 2024 - APS
We probe the superconducting order parameter of the organic-ion-intercalated FeSe-based
superconductor (tetrabutyl ammonium) 0.3 FeSe [(TBA) 0.3 FeSe] using muon-spin …

Magnetic-Field-Induced Spin Nematicity in FeSe1–x S x and FeSe1–y Te y Superconductor Systems

S Liu, J Yuan, S Ma, Z Lu, Y Zhang, M Ma… - Chinese Physics …, 2021 - iopscience.iop.org
The angular-dependent magnetoresistance (AMR) of the ab plane is measured on the
single crystals of iron-chalcogenide FeSe 1–x S x (x= 0, 0.07, 0.13 and 1) and FeSe 1–y Te y …