Thermoelectric properties of heavy-element doped CrN
Please use this identifier to cite or link to this item:
http://hdl.handle.net/10347/17040
Files in this item
Metadata
Title: | Thermoelectric properties of heavy-element doped CrN |
Author: | Quintela, C. X. Rodríguez-González, Benito Rivadulla, Francisco |
Affiliation: | Universidade de Santiago de Compostela. Centro de Investigación en Química Biolóxica e Materiais Moleculares Universidade de Santiago de Compostela. Departamento de Química Física |
Date of Issue: | 2014 |
Publisher: | AIP Publishing |
Citation: | Quintela, C., Rodríguez-González, B., & Rivadulla, F. (2014). Thermoelectric properties of heavy-element doped CrN. Applied Physics Letters, 104(2), 022103. doi: 10.1063/1.4861845 |
Abstract: | CrN 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 CrN |
Publisher version: | https://doi.org/10.1063/1.4861845 |
URI: | http://hdl.handle.net/10347/17040 |
DOI: | 10.1063/1.4861845 |
ISSN: | 0003-6951 |
E-ISSN: | 1077-3118 |
Rights: | © 2014 The Author(s). Published by AIP Publishing. This work is is licensed under a Creative Commons Attribution 3.0 Unported License |
Collections
-
- CIQUS-Artigos [408]
- QF-Artigos [112]