2015年2月17日 · Here we investigate, using photoemission, X-ray scattering and scanning tunnelling microscopy, the canonical CDW compound 2 H -NbSe 2 intercalated with Mn and Co, and show that the...

2017年8月30日 · Atomic-resolution scanning transmission electron microscope imaging reveals the atomic structure of the intrinsic point defects and grain boundaries in monolayer NbSe 2, and confirms the low...

2024年10月2日 · Here, by using angle-resolved photoemission spectroscopy, we revisit the charge density wave order and study the effects of uniaxial strain on the electronic structure of 2H-NbSe 2. Our...

2016年9月16日 · We show that, in the single layer, the CDW barely affects the Fermi surface of the system, thus ruling out a nesting mechanism as the driving force for the modulation. The CDW stabilizes levels lying around 1.35 eV below the Fermi level within the Se-based valence band but having a substantial Nb–Nb bonding character.

2014年2月18日 · We report experimental evidence for the observation of the superconducting amplitude mode, the so-called ‘‘Higgs” mode, in the charge density wave superconductor 2 𝐻 − NbSe 2 using Raman scattering.

2015年10月13日 · We have studied the superconducting state of $2H\ensuremath{-}{\mathrm{NbSe}}_{2}$ by scanning tunneling spectroscopy along two different crystal orientations, the $c$ and the $a/b$ axes. Along the $c$ axis a large gap is dominant in the spectra, while a smaller gap is measured along the $a/b$ axis.

2024年1月29日 · The charge density wave (CDW) state of $2H\text{\ensuremath{-}}{\mathrm{NbSe}}_{2}$ features commensurate domains separated by domain boundaries accompanied by phase slips known as discommensurations.

2008年8月19日 · Polarized Raman spectra have been measured on the layer-structure compound 2H–NbSe 2 single crystal, in a temperature range from 15 to 300 K.

2023年10月10日 · The effect of dimensionality on charge density wave (CDW) transition temperature (T CDW) in 2H-NbSe 2 is still under debate. Raman measurements uncovered highly enhanced T CDW for few-layer samples, while scanning tunneling microscopy results suggest comparable value of bulk crystals.

2013年7月8日 · We report the direct observation in real space of the charge density wave (CDW) phase transition in pristine 2H-NbSe2 using atomic-resolution scanning tunneling microscopy (STM). We find that...