Part-crystalline part-liquid state and rattling-like thermal damping in materials with chemical-bond hierarchy

02 engineering and technology 0210 nano-technology
DOI: 10.1073/pnas.1410349111 Publication Date: 2014-10-07T02:54:30Z
ABSTRACT
Significance Materials with chemical-bond hierarchy may have a specially mixed part-crystalline part-liquid state and show nontraditional thermal transports beyond the traditional “small-parameter” lattice dynamics approach, especially rattling-like damping thus an unusual conductivity that can only be described by including effective “resonant” phonon scattering.
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