Physical Review Letter and Physical Review B recently published in succession the latest research results made by Li Wu's research group in the field of solid thermal conductivity (phonon transmission). Li Wu's research group has discovered some abnormal phonon transmission behaviors in θ-phase tantalum nitride (hereinafter collectively referred to as "TaN") with high thermal conductivity and elemental metal beryllium.
Reference:
Kundu, Chen, Yang, Meng, Carrete, Kabir, Madsen, and Li, Phys. Rev. Lett. 132, 116301 (2024)
https://link.aps.org/doi/10.1103/PhysRevLett.132.116301
Chen, Pang, Meng, and Li, Phys. Rev. B 109, L220302(2024)
https://link.aps.org/doi/10.1103/PhysRevB.109.L220302