Complete magnetic control over the superconducting thermoelectric effect

Giant thermoelectric effects are known to arise at the interface between superconductors and strongly polarized ferromagnets, enabling the construction of efficient thermoelectric generators. We predict that the thermopower of such a generator can be completely controlled by a magnetic input signal: Not only can the thermopower be toggled on and off by rotating a magnet, but it can even be entirely reversed. This in situ control diverges from conventional thermoelectrics, where the thermopower is usually fixed by the device design.

Automated summary

Giant thermoelectric effects can be achieved at the interface between superconductors and strongly polarized ferromagnets, allowing for efficient control of thermopower using a magnetic input signal. The thermopower can be toggled on and off, and even reversed, providing in situ control that differs from conventional thermoelectrics.