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cond-mat.mtrl-sci2024★ 9 cited
Phonon hydrodynamic regimes in sapphire
Takuya Kawabata, Kosuke Shimura, Yuto Ishii +7
When an ideal insulator is cooled, four regimes of thermal conductivity are expected to emerge one after another. Two of these, the Ziman and the Poiseuille, are hydrodynamic regim…
cond-mat.mes-hall2024★ 6 cited
Phonon hydrodynamics in bulk insulators and semi-metals
Yo Machida, Valentina Martelli, Alexandre Jaoui +2
Decades ago, Gurzhi proposed that if momentum-conserving collisions prevail among heat-carrying phonons in insulators and charge-carrying electrons in metals, hydrodynamic features…