High-Tc Superconductivity: Meissner Levitation (2D)

Sample material

Sample temperature 77 K

Magnetic field strength 1.0

Sample T

77 K

Critical Tc

93 K

Resistance R

0.00 Ω

State

—

Resistance vs. temperature

ordinary metal superconductor (selected) current T

How it works

Below Tc the sample turns superconducting and expels the magnetic field from its interior (the Meissner effect) — field lines bow around the disk instead of passing through it, and the magnet levitates.

Flux pinning: in real type-II superconductors, some of the flux gets trapped in lattice defects as vortices — this lets the magnet hover stably off-center, not just above the middle. Drag the magnet with your mouse while superconducting to see pinning.

Above Tc, resistance falls linearly to a small residual value; at the transition to the superconducting state it drops to exactly zero right at Tc.

NORMAL

Drag the magnet (while superconducting)