Publications by authors named "Zouyouwei Lu"
Revealing the energy and spatial characteristics of impurity-induced states in superconductors is essential for understanding their mechanism and fabricating a new quantum state by manipulating impurities. Here, by using high-resolution scanning tunneling microscopy and spectroscopy, we investigate the spatial distribution and magnetic field response of the impurity states in (Li_{1-x}Fe_{x})OHFeSe. We detect two pairs of strong in-gap states on the "dumbbell-shaped" defects.
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- The study investigates the connection between spin and charge orders in high-temperature superconductors, particularly focusing on heavily electron-doped iron selenides.
- When superconductivity is disrupted by defects in (LiFeOH)FeSe, a checkerboard charge order is observed, which varies in pattern based on defect density.
- The findings suggest that this charge order is likely influenced by spin density waves, revealing competing orders and highlighting the role of charge order in detecting spin fluctuations in these materials.
Titanium doped kagome superconductor CsVTiSb and two distinct phases.
Sci Bull (Beijing)
November 2022
The vanadium-based kagome superconductor CsVSb has attracted tremendous attention due to its unexcepted anomalous Hall effect (AHE), charge density waves (CDWs), nematicity, and a pseudogap pair density wave (PDW) coexisting with unconventional strong-coupling superconductivity. The origins of CDWs, unconventional superconductivity, and their correlation with different electronic states in this kagome system are of great significance, but so far, are still under debate. Chemical doping in the kagome layer provides one of the most direct ways to reveal the intrinsic physics, but remains unexplored.
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