摘要
With this contribution,as a comment to the publication in Journal of Mate rials Science&Technology 44(2020)54,reporting giant dielectric response,structural characterization and numerical simulations in Sr_(1-1.5 x)Bi_xTiO_(3)ceramics,we show that the re ported results are rather contradicting and not well analysed,while the suggested mechanism for the giant permittivity response is not valid or doubtful and has to be reconsidered.Moreover,many details and data are missing making impossible not only to call the obtained results very suitable for practical application but even to reproduce them.
基金
within the scope of the project CICECO-Aveiro Institute of Materials(UIDB/50011/2020&UIDP/50011/2020)
financed by the Portuguese national funds through the FCT/MCTES
co-financed by FEDER under the PT2020 Partnership Agreement
within FCT independent researcher grant IF/00602/2013
National funds(OE),through FCT,in the scope of the framework UID/EMS/00481/2019-FCT
Centro 2020,through the European Regional Development Fund(ERDF),in the scope of the project CENTRO-01-0145-FEDER-022083。
