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11 papers
Local probing of superconductivity at oxide interfaces with atomic force microscopy
Dilek Yildiz, Sungmin Kim, Dengyu Yang +10
Superconductivity in strontium titanate has remained enigmatic for more than 50 years. The LaAlO/SrTiO (LAO/STO) heterointerface enables systematic dimensional confinement,…
Electron transport in bilayer graphene nano constrictions patterned using AFM nanolithography
Robert W. Rienstra, Nishat Sultana, En-Min Shih +7
Here we report on low temperature transport measurements of encapsulated bilayer graphene nano constrictions fabricated employing electrode-free AFM-based local anodic oxidation (L…
Spin-selective magneto-conductivity in WSe
En-Min Shih, Qianhui Shi, Daniel Rhodes +6
Material systems that exhibit tunable spin-selective conductivity are key components of spintronic technologies. Here we demonstrate a novel type of spin-selective transport, based…
Bilayer WSe as a natural platform for interlayer exciton condensates in the strong coupling limit
Qianhui Shi, En-Min Shih, Daniel Rhodes +8
Exciton condensates (EC) are macroscopic coherent states arising from condensation of electron-hole pairs. Bilayer heterostructures, consisting of two-dimensional electron and hole…
Quantum Criticality in Twisted Transition Metal Dichalcogenides
Augusto Ghiotto, En-Min Shih, Giancarlo S. S. G. Pereira +10
In moiré heterostructures, gate-tunable insulating phases driven by electronic correlations have been recently discovered. Here, we use transport measurements to characterize the g…
Diffusivity Reveals Three Distinct Phases of Interlayer Excitons in MoSe2/WSe2 Heterobilayers
Jue Wang, Qianhui Shi, En-Min Shih +8
Charge separated interlayer excitons in transition metal dichalcogenide (TMDC) heterobilayers are being explored for moiré exciton lattices and exciton condensates. The presence of…