first results obtained by our STM

Scanning Tunneling Microscopy / Spectroscopy

HOPG

Atomic resolution on HOPG taken at 380 mK.

Areas shown:
left: 10 × 10 nm²
right: 4 × 4 nm²

NbSe₂

NbSe₂ is a type II superconductor. Below 33 K, the charge density waves can be observed (every third row of atoms appears bright).

area: 12 × 12 nm²,
temperature about 385 mK,
zero applied field

This image (area: 18 × 5 nm²) was taken at an applied field of
μ₀H = 2 T
T = 385 mK.
The flux results in a vortex lattice, i.e., superconducting and normal regions coexist.

This coexistance can be seen in the two spectroscopic curves taken within the superconducting region and at the center of a vortex, respectively. ↑
↑

NbSe₂ is a type II superconductor. Below 33 K, the charge density waves can be observed (every third row of atoms appears bright). area: 12 × 12 nm², temperature about 385 mK, zero applied field

This image (area: 18 × 5 nm²) was taken at an applied field of μ₀H = 2 T T = 385 mK. The flux results in a vortex lattice, i.e., superconducting and normal regions coexist.
This coexistance can be seen in the two spectroscopic curves taken within the superconducting region and at the center of a vortex, respectively.	↑	↑