Jooß, Christian

[["dc.bibliographiccitation.artnumber","165315"],["dc.bibliographiccitation.issue","16"],["dc.bibliographiccitation.journal","PHYSICAL REVIEW B"],["dc.bibliographiccitation.volume","85"],["dc.contributor.author","Saucke, Gesine"],["dc.contributor.author","Norpoth, Jonas"],["dc.contributor.author","Jooss, Christian"],["dc.contributor.author","Su, Dong"],["dc.contributor.author","Zhu, Y."],["dc.date.accessioned","2018-11-07T09:11:06Z"],["dc.date.available","2018-11-07T09:11:06Z"],["dc.date.issued","2012"],["dc.description.abstract","The relation among structure, electric transport, and photovoltaic effect is investigated for a pn heterojunction with strong correlation interactions. A perovskite interface is chosen as a model system consisting of the p-doped strongly correlated manganite Pr0.64Ca0.36MnO3 (PCMO) and the n-doped titanate SrTi1-yNbyO3 (y = 0.002 and 0.01). High-resolution electron microscopy and spectroscopy reveal a nearly dislocation-free, epitaxial interface and give insight into the local atomic and electronic structure. The presence of a photovoltaic effect under visible light at room temperature suggests the existence of mobile excited polarons within the band-gap-free PCMO absorber. The temperature-dependent rectifying current-voltage characteristics prove to be mainly determined by the presence of an interfacial energy spike in the conduction band and are affected by the colossal electroresistance effect. From the comparison of photocurrents and spatiotemporal distributions of photogenerated carriers (deduced from optical absorption spectroscopy), we discuss the range of the excited polaron diffusion length."],["dc.identifier.doi","10.1103/PhysRevB.85.165315"],["dc.identifier.isi","000303068800007"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8562"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26648"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Physical Soc"],["dc.relation.issn","2469-9969"],["dc.relation.issn","2469-9950"],["dc.relation.orgunit","Fakultät für Physik"],["dc.rights","CC BY 3.0"],["dc.title","Polaron absorption for photovoltaic energy conversion in a manganite-titanate pn heterojunction"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","093009"],["dc.bibliographiccitation.journal","New Journal of Physics"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Norpoth, J."],["dc.contributor.author","Su, D."],["dc.contributor.author","Inagaki, Hidehiko K."],["dc.contributor.author","Sievers, S."],["dc.contributor.author","Zhu, Y."],["dc.contributor.author","Jooss, Ch. H."],["dc.date.accessioned","2018-11-07T09:05:57Z"],["dc.date.available","2018-11-07T09:05:57Z"],["dc.date.issued","2012"],["dc.description.abstract","Interfacial reconstruction in multilayers of YBa2Cu3O7-delta and Pr0.68Ca0.32MnO3 and its impact on superconducting properties is investigated by means of electron energy-loss spectroscopy and dc electrical transport measurements. Massive underdoping of the cuprate is found by both electron transfer from the manganite and interfacial oxygen depletion, presumably as an adaptation to compressive epitaxial stress. The decrease of the optimally doped volume becomes evident from a distinct suppression of the superconducting transition temperature. This doping effect is stronger than the impact of a competing ferromagnetic order parameter reported for similar multilayer samples with spin-polarized manganites."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2012"],["dc.identifier.doi","10.1088/1367-2630/14/9/093009"],["dc.identifier.isi","000308743400001"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8400"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25442"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1367-2630"],["dc.relation.orgunit","Fakultät für Physik"],["dc.relation.orgunit","Institut für Materialphysik"],["dc.rights","CC BY-NC-SA 3.0"],["dc.rights.uri","http://creativecommons.org/licenses/by-nc-sa/3.0/"],["dc.title","Interfacial reconstruction and superconductivity in cuprate-manganite multilayers of YBa2Cu3O7-delta and Pr0.68Ca0.32MnO3"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","224"],["dc.bibliographiccitation.issue","S2"],["dc.bibliographiccitation.journal","Microscopy and Microanalysis"],["dc.bibliographiccitation.lastpage","225"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Wu, L."],["dc.contributor.author","Klie, R. F."],["dc.contributor.author","Jooss, Ch."],["dc.contributor.author","Zhu, Y."],["dc.date.accessioned","2013-05-30T15:01:41Z"],["dc.date.accessioned","2021-10-27T13:20:03Z"],["dc.date.available","2013-05-30T15:01:41Z"],["dc.date.available","2021-10-27T13:20:03Z"],["dc.date.issued","2008"],["dc.identifier.doi","10.1017/S1431927608085164"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/9066"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91933"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.relation.issn","1435-8115"],["dc.relation.issn","1431-9276"],["dc.relation.orgunit","Universitätsmedizin Göttingen"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Determination of Zener-Polaron-Type Charge and Orbital Ordering in Pr1-xCaxMnO3 Manganite"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","046403"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Materials Research Express"],["dc.bibliographiccitation.volume","1"],["dc.contributor.author","Hoffmann, J."],["dc.contributor.author","Moschkau, P."],["dc.contributor.author","Mildner, Stephanie"],["dc.contributor.author","Norpoth, J."],["dc.contributor.author","Jooss, C."],["dc.contributor.author","Wu, L."],["dc.contributor.author","Zhu, Y."],["dc.date.accessioned","2018-11-07T09:32:22Z"],["dc.date.available","2018-11-07T09:32:22Z"],["dc.date.issued","2014"],["dc.description.abstract","The colossal magnetoresistance effect (CMR), the drop of the electric resistance by orders of magnitude in a strong magnetic field, is a fascinating property of strongly correlated electrons in doped manganites. Here, we present a detailed analysis of the magnetotransport properties of small polarons in thin films of the low bandwidth manganite Pr0.68Ca0.32MnO3 with different degrees of preparation- induced octahedral disorder. The crystal and defect structure is investigated by means of high-resolution transmission electron microscopy. We apply the small polaron theory developed by Firsov and Lang in order to study the hopping mobility in the paramagnetic phase and its changes due to the formation of the antiferromagnetic charge ordered (CO) and the ferromagnetic metallic phases. Although it represents a single particle theory, reasonable estimates of small polaron properties such as formation energy, activation energy and transfer integral are possible, if the effects of interactions and disorder are taken into account. Beyond the well-known effect of the magnetic double exchange on the transfer integral, we show that the emergence of band transport of small polarons in the CMR transition sensibly depends on the degree of octahedral disorder, the polaron-polaron interactions and the resulting long range order leading to a structural phase transition in the CO phase."],["dc.identifier.doi","10.1088/2053-1591/1/4/046403"],["dc.identifier.isi","000209665400124"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/11412"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/31744"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation","SFB 1073: Kontrolle von Energiewandlung auf atomaren Skalen"],["dc.relation","SFB 1073 | Topical Area C | C01 Hydrid-Anordnungen für die Untersuchung photo-induzierter mehrstufiger katalytischer Prozesse"],["dc.relation.issn","2053-1591"],["dc.relation.orgunit","Fakultät für Physik"],["dc.relation.orgunit","Institut für Materialphysik"],["dc.rights","CC BY 3.0"],["dc.title","Effects of interaction and disorder on polarons in colossal resistance manganite Pr0.68Ca0.32MnO3 thin films"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]