Anharmonic rattling leading to ultra-low lattice thermal conductivity in Cu12Sb4S13 tetrahedrites

Author:

Rana Kewal Singh1ORCID,Nidhi 2,Bera Chandan2ORCID,Biswas Kanishka3ORCID,Soni Ajay1ORCID

Affiliation:

1. School of Physical Sciences, Indian Institute of Technology Mandi, Mandi 175075, Himachal Pradesh, India

2. Institute of Nano Science and Technology, Knowledge City, Sahibzada Ajit Singh Nagar, 140306 Punjab, India

3. New Chemistry Unit, School of Advanced Materials, International Centre of Materials Science, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India

Abstract

Phonon propagations driven by disorder and anharmonicity associated with Cu(12e) atoms particularly govern the lattice dynamics in Cu12Sb4S13, resulting in an ultra-low lattice thermal conductivity for thermoelectric applications.

Publisher

Royal Society of Chemistry (RSC)

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