Eckold, Götz

[["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","physica status solidi (b)"],["dc.bibliographiccitation.volume","257"],["dc.contributor.author","Maity, Avishek"],["dc.contributor.author","Schwesig, Steffen"],["dc.contributor.author","Ziegler, Fabian"],["dc.contributor.author","Sobolev, Oleg"],["dc.contributor.author","Eckold, Götz"],["dc.date.accessioned","2021-04-14T08:27:40Z"],["dc.date.available","2021-04-14T08:27:40Z"],["dc.date.issued","2020"],["dc.description.abstract","Polarized neutron scattering is used to characterize low‐energy magnetic excitations in the multiferroic and antiferromagnetic phases of cupric oxide (CuO). The experiments are performed with the novel type of polarization analysis available at the thermal three‐axes spectrometer PUMA@FRM, II allowing the simultaneous detection of spinflip and nonspinflip scattering. The energy gaps of several magnon modes are determined, and evidence for the existence of electromagnons near 3 and 13 meV is found."],["dc.description.abstract","Polarized neutron scattering is used to characterize low‐energy magnetic excitations in the multiferroic and antiferromagnetic phases of cupric oxide (CuO). The experiments are performed with the novel type of polarization analysis available at the thermal three‐axes spectrometer PUMA@FRM II, allowing the simultaneous detection of spinflip and nonspinflip scattering. image © 2020 WILEY‐VCH Verlag GmbH \\u0026 Co. KGaA, Weinheim"],["dc.description.sponsorship","Bundesministerium für Bildung und Forschung http://dx.doi.org/10.13039/501100002347"],["dc.identifier.doi","10.1002/pssb.201900704"],["dc.identifier.eissn","1521-3951"],["dc.identifier.issn","0370-1972"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/82366"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1521-3951"],["dc.relation.issn","0370-1972"],["dc.rights","This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited."],["dc.title","Magnons in the Multiferroic Phase of Cupric Oxide"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","976"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","physica status solidi (b)"],["dc.bibliographiccitation.lastpage","982"],["dc.bibliographiccitation.volume","253"],["dc.contributor.author","Ziegler, Fabian"],["dc.contributor.author","Murshed, Mohammad M."],["dc.contributor.author","Gibhardt, Holger"],["dc.contributor.author","Sobolev, Oleg"],["dc.contributor.author","Gesing, Thorsten M."],["dc.contributor.author","Eckold, Goetz"],["dc.date.accessioned","2018-11-07T10:14:50Z"],["dc.date.available","2018-11-07T10:14:50Z"],["dc.date.issued","2016"],["dc.description.abstract","The full matrix of elastic constants of multiferroic Bi2Mn4O10 has been determined at ambient conditions using phonon spectroscopy. The dispersion of acoustic phonons in a single crystal was measured at the three axes neutron spectrometer PUMA@FRM II for different propagation directions. The magnitudes of the independent nine elastic constants show that the mechanical behavior is strongly anisotropic with a soft direction which almost coincides with the magnetization vector in the low-temperature multiferroic phase. The anisotropy can be related to the different types of links between the building blocks of the mullite structure. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim"],["dc.identifier.doi","10.1002/pssb.201552670"],["dc.identifier.isi","000376593800023"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/40698"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-v C H Verlag Gmbh"],["dc.relation.issn","1521-3951"],["dc.relation.issn","0370-1972"],["dc.title","Mechanical properties of multiferroic Bi2Mn4O10: Full set of elastic constants determined by inelastic neutron scattering"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","096103"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Materials Research Express"],["dc.bibliographiccitation.volume","2"],["dc.contributor.affiliation","Ziegler, Fabian;"],["dc.contributor.affiliation","Gibhardt, Holger;"],["dc.contributor.affiliation","Leist, Jeannis;"],["dc.contributor.affiliation","Eckold, Götz;"],["dc.contributor.author","Ziegler, Fabian"],["dc.contributor.author","Gibhardt, Holger"],["dc.contributor.author","Leist, Jeannis"],["dc.contributor.author","Eckold, Götz"],["dc.date.accessioned","2018-11-07T09:51:52Z"],["dc.date.available","2018-11-07T09:51:52Z"],["dc.date.issued","2015"],["dc.date.updated","2022-02-09T13:18:41Z"],["dc.description.abstract","MnWO4 passes three antiferromagnetic phase transitions below the Neel temperature T-N = 13.5 K. One of these phases is also ferroelectric and MnWO4 is therefore referred to as multiferroic. We investigated the effect of magnetic and electric ordering on the lattice dynamics by high-resolution polarized Raman spectroscopy. With an accuracy of about 0.02 cm(-1), anomalous shifts of nearly all Raman-active phonon wave numbers were observed below T-N. High-energy metal-oxygen stretching modes soften on cooling, while low-energy vibrations become harder. Due to their linear temperature dependence, these anomalies can be attributed to a higher-order spin-phonon coupling process. The phonon line widths are unaffected by the magnetic phase transitions and continuously increase with temperature as expected for three-phonon decay processes."],["dc.identifier.doi","10.1088/2053-1591/2/9/096103"],["dc.identifier.eissn","2053-1591"],["dc.identifier.isi","000370057200044"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13120"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35999"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","IOP Publishing"],["dc.relation.issn","2053-1591"],["dc.rights.access","openAccess"],["dc.rights.uri","http://creativecommons.org/licenses/by/3.0/"],["dc.title","High-resolution polarised Raman scattering study on spin-phonon coupling in multiferroic MnWO4"],["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.firstpage","1800668"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","physica status solidi (b)"],["dc.bibliographiccitation.volume","256"],["dc.contributor.author","Ziegler, Fabian"],["dc.contributor.author","Köhler, Lennart"],["dc.contributor.author","Gibhardt, Holger"],["dc.contributor.author","Gesing, Thorsten M."],["dc.contributor.author","Murshed, Mangir M."],["dc.contributor.author","Sobolev, Oleg"],["dc.contributor.author","Piovano, Andrea"],["dc.contributor.author","Eckold, Götz"],["dc.date.accessioned","2020-12-10T14:07:06Z"],["dc.date.available","2020-12-10T14:07:06Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1002/pssb.v256.7"],["dc.identifier.eissn","1521-3951"],["dc.identifier.issn","0370-1972"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/70126"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Characterization of Multiferroic Bi 2 Mn 4 O 10 by Dielectric and Neutron Spectroscopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","124"],["dc.bibliographiccitation.journal","Nuclear Instruments & Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment"],["dc.bibliographiccitation.lastpage","130"],["dc.bibliographiccitation.volume","877"],["dc.contributor.author","Schwesig, Steffen"],["dc.contributor.author","Maity, Avishek"],["dc.contributor.author","Sobolev, Oleg"],["dc.contributor.author","Ziegler, Fabian"],["dc.contributor.author","Eckold, Götz"],["dc.date.accessioned","2020-12-10T15:20:32Z"],["dc.date.available","2020-12-10T15:20:32Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.nima.2017.09.032"],["dc.identifier.issn","0168-9002"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72700"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Novel type of neutron polarization analysis using the multianalyzer-equipment of the three-axes spectrometer PUMA"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]