Deciphering the full spectrum of phonon scattering by point defects

• Published in: Journal of applied physics Vol. 137; no. 12
• Main Authors: Sun, Yandong, Han, Jian, Zhou, Yanguang, Xu, Ben
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 28.03.2025
• Subjects: Molecular dynamics; Multiple scatter; Phonons; Point defects; Thermal conductivity; Transport properties

The change in mass and induced strain effects at the point defect sites lead to phonon scattering, which, in turn, reduces thermal conductivity. The scattering mechanism of phonons typically depends on the relative relationship between the defects and the phonon wavelength. Traditional views suggest...