Demonstration and imaging of cryogenic magneto-thermoelectric cooling in a van der Waals semimetal

• DOI: 10.1038/s41567-024-02417-z
• Publication Date: 2024-03-08T11:01:51Z
• Authors: T. Völkl; A. Aharon-Steinberg; T. Holder; E. Alpern; N. Banu; A. K. Pariari; Y. Myasoedov; M. E. Huber; M. Hücker; E. Zeldov
• Keywords: Magneto; Weyl semimetal; Physicist

Attaining viable thermoelectric cooling at cryogenic temperatures is of considerable fundamental and technological interest for electronics quantum materials applications. In-device temperature control can provide more efficient precise thermal environment management compared with conventional global cooling. The application a current perpendicular magnetic field gives rise to by generating electron-hole pairs on one side the sample heating due their recombination opposite side, which known as Ettingshausen effect. Here we develop nanoscale imaging magneto-thermoelectric effect demonstrate absolute an in exfoliated WTe