Schottky anomaly
The Schottky anomaly is an observed effect in solid state physics where the specific heat capacity of a solid at low temperature makes a "bump". It is called anomalous because the heat capacity usually increases with temperature, or stays constant. It occurs in systems with a limited number of energy levels so that E(T) is bounded. Cv =(dE/dT), hence bump.
This anomaly is usually seen in paramagnetic salts at low temperature.
It was named after Walter H. Schottky.
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