High frequency atomic tunneling yields ultralow and glass-like thermal conductivity in chalcogenide single crystals

High frequency atomic tunneling yields ultralow and glass-like thermal conductivity in chalcogenide single crystals

Defect-free crystals showing the glassy trend of low thermal conductivity with a monotonic increase with temperature are desirable but rare. Here, the authors observe atomic tunneling associated with low and glass-like thermal conductivity in a hexagonal perovskite chalcogenide single-crystal BaTiS3...

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Autores principales: Bo Sun, Shanyuan Niu, Raphael P. Hermann, Jaeyun Moon, Nina Shulumba, Katharine Page, Boyang Zhao, Arashdeep S. Thind, Krishnamurthy Mahalingam, JoAnna Milam-Guerrero, Ralf Haiges, Matthew Mecklenburg, Brent C. Melot, Young-Dahl Jho, Brandon M. Howe, Rohan Mishra, Ahmet Alatas, Barry Winn, Michael E. Manley, Jayakanth Ravichandran, Austin J. Minnich
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2020
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Science
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Acceso en línea:https://doaj.org/article/94a7816ccce9435199b1111881294b9b
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Sumario:Defect-free crystals showing the glassy trend of low thermal conductivity with a monotonic increase with temperature are desirable but rare. Here, the authors observe atomic tunneling associated with low and glass-like thermal conductivity in a hexagonal perovskite chalcogenide single-crystal BaTiS3.

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