Resonant bonding leads to low lattice thermal conductivity.

  title={Resonant bonding leads to low lattice thermal conductivity.},
  author={Sangyeop Lee and Keivan Esfarjani and Tengfei Luo and Jiawei Zhou and Zhiting Tian and Gang Chen},
  journal={Nature communications},
Understanding the lattice dynamics and low thermal conductivities of IV-VI, V2-VI3 and V materials is critical to the development of better thermoelectric and phase-change materials. Here we provide a link between chemical bonding and low thermal conductivity. Our first-principles calculations reveal that long-ranged interaction along the 〈100〉 direction of the rocksalt structure exist in lead chalcogenides, SnTe, Bi2Te3, Bi and Sb due to the resonant bonding that is common to all of them. This… CONTINUE READING
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