8 papers
Multimodal Terahertz Spectroscopy of the Pairing Symmetry and Normal-State Pseudogap in (La,Pr)NiO Films
Shuxiang Xu, Guangdi Zhou, Hao Wang +11
The discovery of ambient-pressure superconductivity in compressively strained (La,Pr)NiO thin films has intensified efforts to identify the pairing mechanism. However,…
Band modulations and topological transitions in a one-dimensional periodic bead-on-string chain
Haocong Pan, Wei Wang, Chunling Liu
We study band modulations and topological transitions in a one-dimensional periodic bead-on-string chain. Using an exact transfer-matrix formulation of the wave equation with perio…
Superconductivity onset above 60 K in ambient-pressure nickelate films
Guangdi Zhou, Heng Wang, Haoliang Huang +7
Ambient-pressure superconductivity in nickelates has been capped at an onset transition temperature () of ~50 K, a value that remains lower than the cuprate (~133 K)…
Optical signatures of -1/3 fractional quantum anomalous Hall state in twisted MoTe2
Haiyang Pan, Shunshun Yang, Yuzhu Wang +9
The discovery of fractional charge excitations in new platforms offers crucial insights into strongly correlated quantum phases. While a range of fractional quantum anomalous Hall…
On-chip electrically reconfigurable octave-bandwidth optical amplification from visible to near-infrared
Guanyu Han, Wenjun Deng, Yu Wang +8
Achieving broadband on-chip optical amplification spanning the visible and near-infrared (NIR) can enable diverse quantum sensing, metrology, and classical communication applicatio…
Passive harmonic mode-locked laser on lithium niobate integrated photonics
Yu Wang, Guanyu Han, Jan-Philipp Koester +8
Mode-locked lasers (MLLs) are essential for a wide range of photonic applications, such as frequency metrology, biological imaging, and high-bandwidth coherent communications. The…