Dielectric response of the charge-ordered two-dimensional nickelate La1.5Sr0.5NiO4
J. Rivas, B. Rivas-Murias, A. Fondado, J. Mira, M. A. Senaris-Rodriguez
Abstract
We are reporting the dielectric response of La1.5Sr0.5NiO4, a system that presents a charge-ordered state above room temperature and a rearrangement of its charge-order pattern in the temperature region 160-200 K. A careful analysis of the role of the electric contacts used, sample thickness and grain size on the experimental data allows us to determine that this material exhibits high values of intrinsic dielectric constant. The variation of the dielectric constant with temperature shows a maximum in the region of the rearrangement of the charge-order pattern, which constitutes an evidence of the link between both phenomena.
Create a lesson
Related papers
Necessary conditions for benchmarking next-generation AI in materials discovery
Daniel E Widdowson, Tatiana V Kurlina, Olga D Anosova et al.
Doubly Metastable Synthesis for Accelerated Quantum Materials Discovery
Kyuho Lee, Berit H. Goodge, Soonhyun Kwon et al.
Phononic Frequency Combs in Twisted Bilayer Transition Metal Dichalcogenide Heterostructures from First Principles
Naman Arora, Adarsh Ganesan
Improved screening of doped ZrO2 catalysts for CO2 hydrogenation from graph-based machine learning
Karsten Walz Jensen, Mie Andersen, Raffaele Cheula
Dislocation mediated twin boundary faceting in β-Sn
John Israel, Ian Chesser, Khanh Dang et al.
Ferroelectric Domain-Wall Motion, Stability, and Frequency Responses under Different Screening-Charge Conservation Laws
Sergei V. Kalinin