6 papers
Antiferromagnetic Dimers in the Parent Phase of a Correlated Kagome Superconductor
Yifan Wang, Chenchao Xu, Yi Liu +18
Kagome metals are prone to charge-density wave (CDW), magnetic, and superconducting phases, with their flat electronic band conducive for correlated physics. In contrast to the wea…
Weak phonon coupling to nematic quantum critical mode in
S. Wu, D. Ishikawa, A. Q. R. Baron +9
In this work, we investigate the softening of the in-plane transverse acoustic phonon driven by electronic nematicity in BaFe(AsP) using inelastic X-ray scatter…
Measuring the Chern-Simons invariant in quantum gases
Chang-Rui Yi, Jinlong Yu, Huan Yuan +5
Chern-Simons (CS) invariant is a fundamental topological invariant describing the topological invariance of 3D space based on the Chern-Simons field theory. To date, direct measure…
Observation of Kibble-Zurek Behavior across Topological Transitions of a Chern Band in Ultracold Atoms
Huan Yuan, Chang-Rui Yi, Jia-Yu Guo +5
The Kibble-Zurek (KZ) mechanism renders a theoretical framework for elucidating the formation of topological defects across continuous phase transitions. Nevertheless, it is not im…
Emergent ferromagnetic ladder excitations in heavy fermion superconductor CeSb
Zhaoyang Shan, Yangjie Jiao, Jiayu Guo +13
Low-dimensional spin fluctuations play a crucial role in unconventional superconductors, with quasi-one-dimensional spin excitations potentially linked with spin-triplet supercondu…
Charge Density Fluctuations with Enhanced Superconductivity at the Proposed Nematic Quantum Critical Point
Youzhe Chen, Nathan Giles-Donovan, Jiayu Guo +7
A quantum critical point (QCP) represents a continuous phase transition at absolute zero. At the QCP of an unconventional superconductor, enhanced superconducting transition temper…