From Phonons to Domain Walls, the Central Peak and “Critical Slowing Down”

We investigate perovskite oxides from different perspectives, namely their pseudo-harmonic dynamical properties, their dynamical properties when strong anharmonicity exists, and the intriguing functionalities arising from domain walls. Taking these viewpoints together yields a rather complex picture...

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Main Authors: Ekhard K. H. Salje, Annette Bussmann-Holder
Format: Article
Language:English
Published: MDPI AG 2024-10-01
Series:Condensed Matter
Subjects:
Online Access:https://www.mdpi.com/2410-3896/9/4/39
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author Ekhard K. H. Salje
Annette Bussmann-Holder
author_facet Ekhard K. H. Salje
Annette Bussmann-Holder
author_sort Ekhard K. H. Salje
collection DOAJ
description We investigate perovskite oxides from different perspectives, namely their pseudo-harmonic dynamical properties, their dynamical properties when strong anharmonicity exists, and the intriguing functionalities arising from domain walls. Taking these viewpoints together yields a rather complex picture of this material class, which has not been found in previous approaches. It opens pathways to novel applications and reveals the rich ground states beyond the fictitious belief in the ‘simplicity of perovskites and such structures’.
format Article
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spelling doaj-art-6a7b09c51dc74a24805a043a5c3eb9652024-12-27T14:19:08ZengMDPI AGCondensed Matter2410-38962024-10-01943910.3390/condmat9040039From Phonons to Domain Walls, the Central Peak and “Critical Slowing Down”Ekhard K. H. Salje0Annette Bussmann-Holder1Department of Earth Sciences, University of Cambridge, Cambridge CB2 3EQ, UKMax-Planck-Institute for Solid State Research, Heisenbergstr. 1, D-70569 Stuttgart, GermanyWe investigate perovskite oxides from different perspectives, namely their pseudo-harmonic dynamical properties, their dynamical properties when strong anharmonicity exists, and the intriguing functionalities arising from domain walls. Taking these viewpoints together yields a rather complex picture of this material class, which has not been found in previous approaches. It opens pathways to novel applications and reveals the rich ground states beyond the fictitious belief in the ‘simplicity of perovskites and such structures’.https://www.mdpi.com/2410-3896/9/4/39anharmonicityphase transitionsdomain wallsperovskite oxides
spellingShingle Ekhard K. H. Salje
Annette Bussmann-Holder
From Phonons to Domain Walls, the Central Peak and “Critical Slowing Down”
Condensed Matter
anharmonicity
phase transitions
domain walls
perovskite oxides
title From Phonons to Domain Walls, the Central Peak and “Critical Slowing Down”
title_full From Phonons to Domain Walls, the Central Peak and “Critical Slowing Down”
title_fullStr From Phonons to Domain Walls, the Central Peak and “Critical Slowing Down”
title_full_unstemmed From Phonons to Domain Walls, the Central Peak and “Critical Slowing Down”
title_short From Phonons to Domain Walls, the Central Peak and “Critical Slowing Down”
title_sort from phonons to domain walls the central peak and critical slowing down
topic anharmonicity
phase transitions
domain walls
perovskite oxides
url https://www.mdpi.com/2410-3896/9/4/39
work_keys_str_mv AT ekhardkhsalje fromphononstodomainwallsthecentralpeakandcriticalslowingdown
AT annettebussmannholder fromphononstodomainwallsthecentralpeakandcriticalslowingdown