Anomalous Glassy Thermal Conductivity in a Perovskite Bismuthate Induced by Structural Dynamic Instability

Abstract Unraveling the underlying mechanisms at the origin of ultra‐low thermal conductivity in pristine crystals is of central relevance to designing new functional materials. Here, a study of thermal conductivity κ(T) in an extended temperature range (1.5–400 K) is reported in the single‐crystall...

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Bibliographic Details
Main Authors: Alexandre Henriques, Mariana S. L. Lima, Gøran J. Nilsen, Matthias J. Gutmann, Steffen Wirth, Walber H. Brito, Valentina Martelli
Format: Article
Language:English
Published: Wiley 2025-08-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.202502379
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