Giant caloric effects in spin chain materials

TL;DR

This paper predicts giant electro- and elasto-caloric effects in spin chain materials using an exact quantum mechanical approach, with potential applications in quantum cooling and ultra-sensitive sensors.

Contribution

It introduces a theoretical prediction of large caloric effects in spin chain materials based on exact quantum solutions, highlighting their practical applications.

Findings

Giant entropy and temperature jumps predicted in spin chain materials.

Effects are weakly dependent on initial temperature.

Potential applications in quantum device cooling and ultra-sensitive sensing.

Abstract

The giant electro- and elasto-caloric effects in spin chain materials are predicted. The theory is based on the exact quantum mechanical solution of the problem. It is shown that the giant jumps in the entropy and the temperature caused by the caloric effect are weakly affected by the initial temperature. The effect can be used for the cooling of new quantum devices (like systems of qubits in quantum computers). On the other hand, since large changes are predicted in the narrow neighborhood of the critical point, the predicted effect can be used in ultra-sensitive electric and stress sensors for modern microelectronics.