We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Coulomb Correlation Gap at Magnetic Tunneling between Graphene Layers.
- Authors
Khanin, Yu. N.; Vdovin, E. E.; Morozov, S. V.; Novoselov, K. S.
- Abstract
The strong suppression of equilibrium magnetic tunneling in a graphene/hBN/graphene heterostructure caused by the Coulomb correlation gap in the tunneling density of states has been found. Comparison has shown that the suppression of the equilibrium tunneling conductivity in a high magnetic field with a decrease in the temperature and the dependence of the observed gap width Δ on the filling factor of Landau levels ν are qualitatively similar to the respective results of similar experiments in GaAs heterostructures and has confirmed our hypothesis concerning the nature of the effect. However, the determined gap width Δ is much larger than those measured in all previous works in semiconductor heterostructures probably because the cyclotron energy in graphene is much higher than that in GaAs in the region of low Landau levels.
- Subjects
MAGNETIC tunnelling; GRAPHENE; LANDAU levels; DENSITY of states; MAGNETIC fields; QUANTUM tunneling composites
- Publication
JETP Letters, 2023, Vol 118, Issue 6, p433
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364023602464