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Experimental observation of pseudogap in a modulation-doped Mott insulator: Sn/Si(111)-()-R30
Yan-Ling Xiong, Jia-Qi Guan, Rui-Feng Wang +3
Unusual quantum phenomena usually emerge upon doping Mott insulators. Using a combinatorial molecular beam epitaxy system integrated with cryogenic scanning tunneling microscopy, w…
Gate Tunable Supercurrent in Josephson Junctions Based on Bi2Te3 Topological Insulator Thin Films
Wei-Xiong Wu, Yang Feng, Yun-He Bai +13
We report transport measurements on Josephson junctions consisting of Bi2Te3 topological insulator (TI) thin films contacted by superconducting Nb electrodes. For a device with jun…
Charge density waves and Fermi level pinning in monolayer and bilayer SnSe
Shu-Ze Wang, Yi-Min Zhang, Jia-Qi Fan +4
Materials with reduced dimensionality often exhibit exceptional properties that are different from their bulk counterparts. Here we report the emergence of a commensurate 2 $\times…
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…