Issue 16, 2024

Temperature-tunable multiple dielectric switch in hybrid rare-earth perovskites regulated by hierarchical guest dynamics, lanthanide contraction and doping

Abstract

Dielectric switches play an important role in electrical and electronic devices. Here we report a unique class of cage-like hybrid rare-earth perovskites, (i-PrNHMe2)2[RbLn(NO3)6] (Ln = La, Ce, Nd or Sm), capable of functioning as temperature-responsive multiple dielectric switches. The strategic incorporation of a conformationally flexible sphere-like guest (i-PrNHMe2)+ cation into the cage-like perovskite framework is in favor of the occurrence of hierarchical guest dynamics accompanied by stepwise phase transitions, leading to seldom observed multiple dielectric switching of “Low ↔ High ↔ Low ↔ High” upon heating. Furthermore, the utilizing of lanthanide contraction or rare-earth doping allows for fine tuning of the switching temperature. In addition, multiaxial ferroelasticity is found in these perovskites. Overall, this study provides a good approach for the design of temperature-tunable multiple dielectric switches.

Graphical abstract: Temperature-tunable multiple dielectric switch in hybrid rare-earth perovskites regulated by hierarchical guest dynamics, lanthanide contraction and doping

Supplementary files

Article information

Article type
Research Article
Submitted
17 Mey 2024
Accepted
06 Jul 2024
First published
08 Jul 2024

Inorg. Chem. Front., 2024,11, 5336-5344

Temperature-tunable multiple dielectric switch in hybrid rare-earth perovskites regulated by hierarchical guest dynamics, lanthanide contraction and doping

H. Xiao, L. Sheng, S. Chen, R. Huang, C. Zeng, Z. Du, C. He, W. Zhang and X. Chen, Inorg. Chem. Front., 2024, 11, 5336 DOI: 10.1039/D4QI01243G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements