Y_2.80Pr_0.20Fe₅O₁₂/Ba_0.6Sr_0.4TiO₃ thin film heterostructure was claimed by Jiao et al. in Journal of Materials Science & Technology 202 (2024) 174 as a tunable dielectric material with superior performance achieved under simultaneous application of the electric and magnetic fields at a particular frequency of 1.44 MHz. However, here we express concerns regarding the real presence of the phenomenon at 1.44 MHz in the studied structures based on the literature and dielectric spectroscopy basics. We also note that the presented dielectric results and their interpretations are contradictory.

中文翻译：

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评论 “通过涂层 Pr 改性钇铁石榴石层增强钛酸锶薄膜的电磁可调性”


Y_{， 2.80}， Pr_0.20， Fe₅， O₁₂/Ba_0.6， Sr_0.4， TiO₃ 薄膜异质结构被Jiao等人在《材料科学与技术杂志》202 （2024） 174中声称是一种可调介电材料，在1.44 MHz的特定频率下，在电场和磁场的同时应用下具有卓越的性能。然而，在这里，我们根据文献和介电谱学基础知识，对所研究结构中 1.44 MHz 现象的真实存在表示担忧。我们还注意到，所提出的介电结果及其解释是相互矛盾的。