133078 20260217205458.0 doi 10.1016/j.mtphys.2024.101346 sideral 137863 ART-2024-137863 eng Pang, Guijian Thermal conductivity reduction in highly-doped cubic SiC by phonon-defect and phonon-electron scattering 2024 Access copy available to the general public Unrestricted We calculate the thermal conductivity (κ) of highly N- and B-doped cubic silicon carbide (SiC) with defect concentrations (Cdef) from 1016 to 1021 cm−3 and compare the relative importance of the extrinsic phonon-electron and phonon-defect scattering mechanisms. Whereas phonon-electron scattering dominates over phonon-defect scattering at low Cdef up to about 1020 cm−3 at room temperature in N-doped SiC, phonon-defect scattering determines the thermal conductivity reduction in the B-doped case. This strong contrast between the electron- and hole-doped cases is related to the much higher ionization energy of B acceptors as compared to that of N donors, and to the resonant scattering caused by B substitution, not present for the N impurity. The similar features can be found in hexagonal phase 4H–SiC. Our results highlight the importance of considering the phonon-electron scattering mechanism together with other phonon scattering processes when calculating the thermal conductivity of doped semiconductors. info:eu-repo/semantics/openAccess by-nc https://creativecommons.org/licenses/by-nc/4.0/deed.es 9.7 2024 PHYSICS, APPLIED 20 / 187 = 0.107 2024 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 60 / 461 = 0.13 2024 Q1 T1 2.278 2024 Energy (miscellaneous) 2024 Q1 Physics and Astronomy (miscellaneous) 2024 Q1 Materials Science (miscellaneous) 2024 Q1 17.1 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Meng, Fanchen Chen, Yani Katre, Ankita Carrete, Jesús (orcid)0000-0003-0971-1098 Dongre, Bonny Madsen, Georg K.H. Mingo, Natalio Li, Wu 41 (2024), 101346 [7 pp.] Materials Today Physics 2542-5293 5029307 http://zaguan.unizar.es/record/133078/files/texto_completo.pdf Versión publicada 2657500 http://zaguan.unizar.es/record/133078/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:133078 articulos driver 2026-02-17-20:20:57 ARTICLE