10 Questions
What is the significance of the white shaded areas in the image viewed with a scanning tunneling microscope?
The white shaded areas represent the vortex cores, which have a high density of states.
What does the absence of states at the Fermi level in the dark regions indicate?
The absence of states at the Fermi level in the dark regions indicates superconducting regions.
How are the amplitude and spatial extent of the states at the Fermi level determined in the image?
The amplitude and spatial extent of the states at the Fermi level are determined by a potential well formed by (x) as shown in Figure 18 for a Type II superconductor.
What role does the potential well play in the image of the flux lattice in NbSe2?
The potential well confines the core state wavefunctions in the image.
What unique feature is observed in NbSe2 related to the charge density at the Fermi surface?
A star shape, a finer feature, is observed in NbSe2 due to the sixfold disturbance of the charge density at the Fermi surface.
How are the vortex cores represented in the image viewed with a scanning tunneling microscope?
Shaded white with a high density of states.
What is the significance of the star shape in the image of the flux lattice in NbSe2?
Finer feature resulting from a sixfold disturbance of the charge density at the Fermi surface.
What determines the amplitude and spatial extent of the states at the Fermi level in the image?
A potential well formed by (x) as shown in Fig. 18 for a Type II superconductor.
What characterizes the superconducting regions in the image viewed with a scanning tunneling microscope?
Dark with no states at the Fermi level.
What feature of NbSe2 causes the charge density disturbance observed at the Fermi surface?
Sixfold disturbance of the charge density.
Test your knowledge on the flux lattice in NbSe2 at 1,000 gauss and 0.2K, as observed through a scanning tunneling microscope. The quiz covers topics such as density of states at the Fermi level, vortex cores, superconducting regions, and potential wells in Type II superconductors.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
