Yongwei Li

collaborators

5 papers

cond-mat.supr-con2026

Ultrasound Evidence for a Low-Temperature Anomaly Inside the Superconducting State of 4Hb-TaS $_{2}$

Yongwei Li, Dmitri V. Efremov, Paul Leask +7

We report low-temperature ultrasound measurements on single crystals of the layered van der Waals superconductor 4Hb-TaS $_{2}$ . Specific heat and ac magnetic susceptibility show a sh…

cond-mat.supr-con2025

Origins of spontaneous magnetic fields in Sr $_{2}$ RuO $_{4}$

Yongwei Li, Rustem Khasanov, Stephen P. Cottrell +5

The nature of the broken time reversal symmetry (BTRS) state in Sr $_{2}$ RuO $_{4}$ remains elusive, and its relation to superconductivity remains controversial. There are various univer…

cond-mat.supr-con2025

Novel coupling between charge order and time-reversal-symmetry-breaking superconductivity

Quanxin Hu, Lingfeng Zhang, Yu Zheng +9

The interplay between charge-density waves (CDWs), which break translational symmetry, and spatially homogeneous superconductivity, which breaks global U(1) gauge symmetry, can giv…

cond-mat.supr-con2025

Ultrasound evidence for multicomponent superconducting order parameter in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ with electron quadrupling phase

Chris Halcrow, Ilya Shipulin, Federico Caglieris +6

Experiments have pointed to the formation of the electron quadrupling condensate in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ at $x \sim 0.8$ . The state spontaneously breaks time-reversal symmet…

cond-mat.supr-con2025

Evidence of pseudogap and absence of spin magnetism in the time-reversal-symmetry-breaking state of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$

Florian BÃ¤rtl, Nadia Stegani, Federico Caglieris +13

Muon-spin-rotation ( $I^¼$ SR) experiments and the observation of a spontaneous Nernst effect indicate time-reversal symmetry breaking (BTRS) at $T_{c}^{Z2}$ above the superco…

Ultrasound Evidence for a Low-Temperature Anomaly Inside the Superconducting State of 4Hb-TaS2​

Origins of spontaneous magnetic fields in Sr2​RuO4​

Novel coupling between charge order and time-reversal-symmetry-breaking superconductivity

Ultrasound evidence for multicomponent superconducting order parameter in Ba1−x​Kx​Fe2​As2​ with electron quadrupling phase

Evidence of pseudogap and absence of spin magnetism in the time-reversal-symmetry-breaking state of Ba1−x​Kx​Fe2​As2​

Ultrasound Evidence for a Low-Temperature Anomaly Inside the Superconducting State of 4Hb-TaS $_{2}$

Origins of spontaneous magnetic fields in Sr $_{2}$ RuO $_{4}$

Ultrasound evidence for multicomponent superconducting order parameter in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$ with electron quadrupling phase

Evidence of pseudogap and absence of spin magnetism in the time-reversal-symmetry-breaking state of Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$