09/2026

Electrocaloric effect in triglycine sulfate under a strong internal bias field

J. Fischer, D. Hägele and J. Rudolph

A new study investigates how a strong internal bias field influences the electrocaloric effect in triglycine sulfate (TGS). Direct, time-resolved measurements reveal both normal and inverse electrocaloric effects, depending on the direction and strength of the applied electric field.

The internal bias field enables distinct sequences of heating and cooling within a single field cycle. These effects persist from the ferroelectric into the paraelectric phase.

Applied Physics Letters 129, 132901 (2026)