4 papers
Ultrafast decoupling of the pseudogap from superconductivity in a pressurized cuprate
Yanghao Meng, Wenjin Mao, Liucheng Chen +7
The relationship between the pseudogap and superconductivity remains a central puzzle in the physics of cuprates. Hydrostatic pressure provides a clean tuning parameter free from c…
Multiple charge-density-wave gaps in LaSbTe and CeSbTe as revealed by ultrafast spectroscopy
Liye Cao, Cuiwei Zhang, Yi Yang +5
Utilizing ultrafast time-resolved pump-probe spectroscopy measurements, we investigate the photoinduced quasiparticle dynamics of the topological materials LaSbTe and CeSbTe. In La…
Density-wave-like gap evolution in LaNiO under high pressure revealed by ultrafast optical spectroscopy
Yanghao Meng, Yi Yang, Hualei Sun +8
Density wave (DW) order is believed to be correlated with superconductivity in the recently discovered high-temperature superconductor LaNiO. However, experimental inve…
Emergence of superconductivity near 11 K by suppressing the 3-fold helical-chain structure in noncentrosymmetric HgS
He Zhang, Wei Zhong, Yanghao Meng +4
The trigonal -HgS has a 3-fold helical chain structure, and is in form of a noncentrosymmetric phase, known as the cinnabar phase. However, under pressure, the helical…