dc.contributor.author | Småbråten, Didrik Rene | |
dc.contributor.author | Meier, Quintin Noel | |
dc.contributor.author | Skjærvø, Sandra Helen | |
dc.contributor.author | Inzani, Katherine | |
dc.contributor.author | Meier, Dennis | |
dc.contributor.author | Selbach, Sverre Magnus | |
dc.date.accessioned | 2019-04-12T08:59:19Z | |
dc.date.available | 2019-04-12T08:59:19Z | |
dc.date.created | 2019-01-14T09:21:39Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | PHYSICAL REVIEW MATERIALS. 2018, 2 (11), 114405-?. | nb_NO |
dc.identifier.issn | 2475-9953 | |
dc.identifier.uri | http://hdl.handle.net/11250/2594434 | |
dc.description.abstract | Ferroelectric domain walls are attracting broad attention as atomic-scale switches, diodes and mobile wires for next-generation nanoelectronics. Charged domain walls in improper ferroelectrics are particularly interesting as they offer multifunctional properties and an inherent stability not found in proper ferroelectrics. Here we study the energetics and structure of charged walls in improper ferroelectric YMnO3, InMnO3 and YGaO3 by first principles calculations and phenomenological modeling. Positively and negatively charged walls are asymmetric in terms of local structure and width, reflecting that polarization is not the driving force for domain formation. The wall width scales with the amplitude of the primary structural order parameter and the coupling strength to the polarization. We introduce general rules for how to engineer n- and p-type domain wall conductivity based on the domain size, polarization and electronic band gap. This opens the possibility of fine-tuning the local transport properties and design p-n-junctions for domain wall-based nano-circuitry. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | American Physical Society | nb_NO |
dc.subject | Ferroelektriske domenevegger | nb_NO |
dc.subject | Ferroelectric domain walls | nb_NO |
dc.title | Charged domain walls in improper ferroelectric hexagonal manganites and gallates | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.subject.nsi | VDP::Kondenserte fasers fysikk: 436 | nb_NO |
dc.subject.nsi | VDP::Condensed matter physics: 436 | nb_NO |
dc.source.pagenumber | 114405-? | nb_NO |
dc.source.volume | 2 | nb_NO |
dc.source.journal | PHYSICAL REVIEW MATERIALS | nb_NO |
dc.source.issue | 11 | nb_NO |
dc.identifier.doi | 10.1103/PhysRevMaterials.2.114405 | |
dc.identifier.cristin | 1655823 | |
dc.relation.project | Notur/NorStore: ntnu243 | nb_NO |
dc.relation.project | Notur/NorStore: NN9264K | nb_NO |
dc.relation.project | Norges forskningsråd: 231430 | nb_NO |
dc.relation.project | Andre: NTNU - NIMS Cooperative Graduate School program (ICGP) | nb_NO |
dc.relation.project | Norges forskningsråd: 240466 | nb_NO |
dc.description.localcode | © American Physical Society 2018. This is the authors accepted and refereed manuscript to the article. | nb_NO |
cristin.unitcode | 194,66,35,0 | |
cristin.unitname | Institutt for materialteknologi | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |