Microscopic mechanism of low thermal conductivity in lead telluride

The microscopic physics behind low-lattice thermal conductivity of single-crystal rock salt lead telluride (PbTe) is investigated. Mode-dependent phonon (normal and umklapp) scattering rates and their impact on thermal conductivity were quantified by first-principles-based anharmonic lattice dynamic...

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Veröffentlicht in:	Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2012-04, Vol.85 (15), Article 155203
Hauptverfasser:	Shiga, Takuma, Shiomi, Junichiro, Ma, Jie, Delaire, Olivier, Radzynski, Tomasz, Lusakowski, Andrzej, Esfarjani, Keivan, Chen, Gang
Format:	Artikel
Sprache:	eng
Schlagworte:	ACOUSTICS Condensed matter Heat transfer Intermetallics Lead base alloys LEAD TELLURIDES PHONONS PHYSICS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS SALT DEPOSITS SCATTERING THERMAL CONDUCTIVITY VELOCITY
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