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Realization of Stable Ferromagnetic Order in Topological Insulator: Codoping Enhanced Magnetism in 4f Transition Metal Doped Bi2Se3
Bei Deng, Yiou Zhang, S. B. Zhang +3
The realization of long range and insulating ferromagnetic states in topological insulator (TI) has been a pressing issue since its discovery. Only recently, such state was achieve…
Field-effect Modulation of Anomalous Hall Effect in Diluted Ferromagnetic Topological Insulator Epitaxial Films
Cui-Zu Chang, Min-Hao Liu, Zuo-Cheng Zhang +3
High quality chromium (Cr) doped three-dimensional topological insulator (TI) Sb2Te3 films are grown via molecular beam epitaxy on heat-treated insulating SrTiO3(111) substrates. W…
Visualizing the evolution from the Mott insulator to a charge ordered insulator in lightly doped cuprates
Peng Cai, Wei Ruan, Yingying Peng +6
A central question in the high temperature cuprate superconductors is the fate of the parent Mott insulator upon charge doping. Here we use scanning tunneling microscopy to investi…
Thickness dependence of superconductivity and superconductor-insulator transition in ultrathin FeSe films on SrTiO3(001) substrate
Qingyan Wang, Wenhao Zhang, Zuocheng Zhang +7
Interface-enhanced high-temperature superconductivity in one unit-cell (UC) FeSe film on SrTiO3(001) (STO) substrate has recently attracted much attention in condensed matter physi…
Onset of the Meissner effect at 65 K in FeSe thin film grown on Nb doped SrTiO3 substrate
Zuocheng Zhang, Yihua Wang, Qi Song +5
We report the Meissner effect studies on an FeSe thin film grown on Nb doped SrTiO3 substrate by molecular beam epitaxy. Two-coil mutual inductance measurement clearly demonstrates…
Quantum Hall Effect in Black Phosphorus Two-dimensional Electron Gas
Likai Li, Fangyuan Yang, Guo Jun Ye +10
Development of new, high quality functional materials has been at the forefront of condensed matter research. The recent advent of two-dimensional black phosphorus has greatly enri…