Publications (9)
Stoichiometry and defect superstructures in epitaxial FeSe films on SrTiO3
Xue-Qing Yu, Ming-Qiang Ren, Yi-Min Zhang +5
Cryogenic scanning tunneling microscopy is employed to investigate the stoichiometry and defects of epitaxial FeSe thin films on SrTiO3(001) substrates under various post-growth an…
Visualizing molecular orientational ordering and electronic structure in CsnC60 fulleride films
Sha Han, Meng-Xue Guan, Can-Li Song +5
Alkali-doped fullerides exhibit a wealth of unusual phases that remain controversial by nature. Here we report a cryogenic scanning tunneling microscopy study of the sub-molecular…
Nodeless pairing in superconducting copper-oxide monolayer films on Bi2Sr2CaCu2O8+δ
Yong Zhong, Yang Wang, Sha Han +13
The pairing mechanism of high-temperature superconductivity in cuprates remains the biggest unresolved mystery in condensed matter physics. To solve the problem, one of the most ef…
Coexistence of full-gap superconductivity and pseudogap in two-dimensional fullerides
Ming-Qiang Ren, Sha Han, Shu-Ze Wang +4
Alkali-fulleride superconductors with a maximum critical temperature Tc of 40 K exhibit similar electronic phase diagram with unconventional high-Tc superconductors where the super…
Tuning the electronic states and superconductivity in alkali fulleride films
Ming-Qiang Ren, Shu-Ze Wang, Sha Han +3
The successful preparation of superconducting alkali fulleride (AC, A = K, Rb, Cs) films using state-of-the-art molecular beam epitaxy overcomes the disadvantages of the…
Merohedral disorder and impurity impacts on superconductivity of fullerenes
Shu-Ze Wang, Ming-Qiang Ren, Sha Han +3
Local quasiparticle states around impurities provide essential insight into the mechanism of unconventional superconductivity, especially when the candidate materials are proximate…
Universal 3:1 Scaling of Quantum-Confined Stark Spectra Revealed by a Three-Dimensional Profile
Sha Han, Kebei Chen, Runnan Zhang +3
We report that the quantum-confined Stark effect spectrum exhibits a nearly rigid redshift while preserving its characteristic peak spacing patterns when increasing the electric fi…
Semiconductor-metal phase transition and emergent charge density waves in 1T-ZrX (X = Se, Te) at the two-dimensional limit
Ming-Qiang Ren, Sha Han, Jia-Qi Fan +7
Charge density wave (CDW) is a collective quantum phenomenon in metals and features a wave-like modulation of the conduction electron density. A microscopic understanding and exper…
Atomic Visualization of Copper Oxide Structure in Infinite-Layer Cuprate SrCuO2
Yong Zhong, Sha Han, Yang Wang +8
We report on atomic-scale visualization of the structure of infinite-layer cuprate SrCuO2 thin films grown on Nb-doped SrTiO3 substrates by molecular beam epitaxy. In-situ scanning…