dc.contributor.author | Ruff, E. | |
dc.contributor.author | Krohns, S. | |
dc.contributor.author | Lilienblum, M. | |
dc.contributor.author | Meier, Dennis Gerhard | |
dc.contributor.author | Fiebig, Manfred | |
dc.contributor.author | Lunkenheimer, Peter | |
dc.contributor.author | Loidl, Alois | |
dc.date.accessioned | 2018-01-03T10:17:31Z | |
dc.date.available | 2018-01-03T10:17:31Z | |
dc.date.created | 2017-03-27T09:00:24Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0031-9007 | |
dc.identifier.uri | http://hdl.handle.net/11250/2474300 | |
dc.description.abstract | We deduce the intrinsic conductivity properties of the ferroelectric domain walls around the topologically protected domain vortex cores in multiferroic YMnO3. This is achieved by performing a careful equivalent-circuit analysis of dielectric spectra measured in single-crystalline samples with different vortex densities. The conductivity contrast between the bulk domains and the less conducting domain boundaries is revealed to reach up to a factor of 500 at room temperature, depending on the sample preparation. Tunneling of localized defect charge carriers is the dominant charge-transport process in the domain walls that are depleted of mobile charge carriers. This work demonstrates that, via equivalent-circuit analysis, dielectric spectroscopy can provide valuable information on the intrinsic charge-transport properties of ferroelectric domain walls, which is of high relevance for the design of new domain-wall-based microelectronic devices. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | American Physical Society | nb_NO |
dc.title | Conductivity Contrast and Tunneling Charge Transport in the Vortexlike Ferroelectric Domain Patterns of Multiferroic Hexagonal YMnO3 | nb_NO |
dc.type | Journal article | nb_NO |
dc.description.version | submittedVersion | nb_NO |
dc.source.volume | 118 | nb_NO |
dc.source.journal | Physical Review Letters | nb_NO |
dc.source.issue | 3 | nb_NO |
dc.identifier.doi | 10.1103/PhysRevLett.118.036803 | |
dc.identifier.cristin | 1461213 | |
dc.description.localcode | This is a submitted manuscript of an article published by American Physical Society in Physical Review Letters, 20 January 2017 | nb_NO |
cristin.unitcode | 194,66,35,0 | |
cristin.unitname | Institutt for materialteknologi | |
cristin.ispublished | true | |
cristin.fulltext | preprint | |
cristin.qualitycode | 2 | |