Quintela, C. X.Rodríguez-González, BenitoRivadulla Fernández, José Francisco2018-07-162018-07-162014Quintela, C., Rodríguez-González, B., & Rivadulla, F. (2014). Thermoelectric properties of heavy-element doped CrN. Applied Physics Letters, 104(2), 022103. doi: 10.1063/1.48618450003-6951http://hdl.handle.net/10347/17040CrN was doped with Mo and W to study the effect of heavy elements alloying on its thermoelectric properties. An spontaneous phase segregation into Mo- and W-rich regions was observed even at the lowest concentrations probed at this work (≃1%). In the particular case of W, this segregation creates nanoinclusions into the Cr1–xWxN matrix, which results in a substantial reduction of the thermal conductivity in the whole temperature range compared to undoped CrN. In addition, an increased hybridization of N:2p and 4d/5d orbitals with respect to Cr:3d decreases the electrical resistivity in lightly doped samples. This improves substantially the thermoelectric figure of merit with respect to the undoped compound, providing a pathway for further improvement of the thermoelectric performance of CrNeng© 2014 The Author(s). Published by AIP Publishing. This work is is licensed under a Creative Commons Attribution 3.0 Unported Licensehttps://creativecommons.org/licenses/by/3.0/journal article10.1063/1.48618451077-3118open access