2019年6月5日 · a twist angle between graphene and NbSe2, and of spin-orbit coupling and superconducting pairing in NbSe2. We obtain the parameters entering the continuous model via ab-initio calculations. We show that despite the large mismatch between the graphene’s and NbSe2’s lattice constants, due to the large size of the NbSe2’s Fermi
Monolayer 1T-NbSe2 as a 2D-correlated magnetic insulator
2021年11月19日 · We probe the electronic structure of monolayer 1T-NbSe 2 using scanning tunneling microscopy/spectroscopy (STM/STS). By combining our spectroscopic data with Hubbard-corrected density functional theory (DFT) calculations, we show that the gap is …
Electronic structure of 2H-NbSe2 single-layers in the CDW state ...
2016年9月16日 · As the recent experimental work by Ugeda et al was carried out on single-layer NbSe 2 supported on bilayer graphene on SiC, we now consider whether the underlying graphene can induce changes on the electronic structure of pristine single-layer NbSe 2.
Characterization of collective ground states in single-layer NbSe2 ...
2015年11月2日 · Here we present an electronic characterization study of a single two-dimensional (2D) layer of NbSe 2 by means of low-temperature scanning tunnelling microscopy/spectroscopy (STM/STS),...
2 is probed using scanning tunneling microscopy/spectroscopy (STM/STS). By combining our spectroscopic data with Hubbard-corrected density-functional theory (DFT) calculations, we show that the gap is indeed of charge-transfer nature, with a localized upper Hubbard band (UHB) located above the valence band maximum (VBM). The lower Hubbard band
Observation of Superconducting Collective Modes from …
2022年8月26日 · We investigate the superconducting properties of single-layer NbSe 2 with samples grown by molecular beam epitaxy on bilayer graphene on SiC (0001) and h-BN/Ir (111) substrates (see Supporting Information for details).
Superconductivity in twisted graphene NbSe 2 heterostructures
2019年6月5日 · We study the low-energy electronic structure of heterostructures formed by one sheet of graphene placed on a monolayer of NbSe 2. We build a continuous low-energy effective model that takes into account the presence of a twist angle between graphene and NbSe 2, and of spin-orbit coupling and superconducting pairing in NbSe 2.
In this work, we report conclusive evidence for QSL behavior in monolayer 1T-NbSe2 via scanning tunneling microscopy/spectroscopy (STM/STS) measurements and theoretical modeling.
2021年11月30日 · In this work, we investigate the impact of proximity effects on the CDW and superconducting states in single-layer (SL) NbSe. 2on four substrates of diverse nature, namely, bilayer graphene (BLG), SL-boron nitride (h-BN), Au(111), and bulk WSe.
We probe the electronic structure of monolayer 1T-NbSe2 using scanning tunneling microscopy/ spectroscopy (STM/STS). By combining our spectroscopic data with Hubbard-corrected density functional theory (DFT) calcula-tions, we show that the gap is of charge transfer nature.