Abstract
multilayers modeled via ab initio calculations give rise to nanoscale, scalable, spatially separated two-dimensional electron and hole gases, each confined to its own CrN interface. Because of the Cr configuration, both electron and hole gases are based on correlated transition-metal layers involving bands of character. Transport calculations predict each subsystem will have a large thermopower, on the order of at room temperature. These heterostructures combine a large thermoelectric efficiency with scalable nanoscale conducting sheets; for example, operating at a temperature difference of 50 K, 40 bilayers could produce a 1-V voltage with a film thickness of 100 nm.
- Received 8 July 2016
DOI:https://doi.org/10.1103/PhysRevApplied.7.024002
© 2017 American Physical Society