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","69"],["dc.bibliographiccitation.journal","Diffusion-Fundamentals"],["dc.bibliographiccitation.lastpage","70"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Eckold, Götz"],["dc.date.accessioned","2019-07-10T08:13:39Z"],["dc.date.available","2019-07-10T08:13:39Z"],["dc.date.issued","2010"],["dc.identifier.fs","571074"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7214"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61299"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1862-4138"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","540"],["dc.title","Domain Redistribution and Ferroelectric Phase Transition in SrTiO3 Under the Influence of an Electric Field and Mechanical Stress"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","64"],["dc.bibliographiccitation.journal","Diffusion-Fundamentals"],["dc.bibliographiccitation.lastpage","65"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Eckold, Götz"],["dc.date.accessioned","2019-07-10T08:13:39Z"],["dc.date.available","2019-07-10T08:13:39Z"],["dc.date.issued","2010"],["dc.identifier.fs","571215"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7217"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61302"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1862-4138"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","540"],["dc.title","Investigation of the Demixing Process in the System Fe3O4(Magnetite)-FeAl2O4(Hercynite)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","105013"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Materials Research Express"],["dc.bibliographiccitation.volume","2"],["dc.contributor.affiliation","Güthoff, F;"],["dc.contributor.affiliation","Zhang, B;"],["dc.contributor.affiliation","Eckold, G;"],["dc.contributor.author","Guethoff, Friedrich"],["dc.contributor.author","Zhang, B."],["dc.contributor.author","Eckold, Goetz"],["dc.date.accessioned","2018-11-07T09:50:24Z"],["dc.date.available","2018-11-07T09:50:24Z"],["dc.date.issued","2015"],["dc.date.updated","2022-02-09T13:18:42Z"],["dc.description.abstract","In quasi binary systems like AgBr-NaBr the demixing from the homogeneous high temperature phase into separated phases is a complex process that depends on the ageing temperature as well as on the quench rate. Spinodal decomposition and nucleation processes can be distinguished which lead, however, to the same final equilibrium state. Using frequency modulated scanning force microscopy we aimed to distinguish the demixed phases and their morphologies on a nm-scale at room temperature for samples with different concentration. While no contrast between the different phases are observed in the usual topographic mode, a modified evaluation of Kelvin experiments allows the distinction of silver-and sodium enriched phases. Moreover, direct evidence is found for concentration fluctuations which are characteristic for spinodal decomposition."],["dc.identifier.doi","10.1088/2053-1591/2/10/105013"],["dc.identifier.eissn","2053-1591"],["dc.identifier.isi","000370058600013"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13118"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35704"],["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","Imaging chemical concentration pattern and early stages of spinodal decomposition in the AgxNa1-xBr system by scanning force microscopy"],["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","61"],["dc.bibliographiccitation.journal","Diffusion-Fundamentals"],["dc.bibliographiccitation.lastpage","63"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Eckold, Götz"],["dc.date.accessioned","2019-07-10T08:13:39Z"],["dc.date.available","2019-07-10T08:13:39Z"],["dc.date.issued","2010"],["dc.identifier.fs","571203"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7216"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61301"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1862-4138"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","540"],["dc.title","Ferroelectricity and Modulated Phases in Mixed Crystals of the A2BX4-Compounds"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","19"],["dc.bibliographiccitation.journal","diffusion-fundamentals"],["dc.bibliographiccitation.lastpage","20"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Eckold, Götz"],["dc.date.accessioned","2019-07-10T08:13:39Z"],["dc.date.available","2019-07-10T08:13:39Z"],["dc.date.issued","2010"],["dc.identifier.fs","570536"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7213"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61298"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1862-4138"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Time Resolved Phonons as a Microscopic Probe for Solid State Reactions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["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","109"],["dc.bibliographiccitation.journal","Diffusion-Fundamentals"],["dc.bibliographiccitation.lastpage","110"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Eckold, Götz"],["dc.date.accessioned","2019-07-10T08:13:39Z"],["dc.date.available","2019-07-10T08:13:39Z"],["dc.date.issued","2010"],["dc.identifier.fs","571196"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7215"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61300"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1862-4138"],["dc.relation.orgunit","Fakultät für Chemie"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","540"],["dc.title","Phonons in Demixing Systems"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","63"],["dc.bibliographiccitation.journal","NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT"],["dc.bibliographiccitation.lastpage","71"],["dc.bibliographiccitation.volume","772"],["dc.contributor.author","Sobolev, Oleg"],["dc.contributor.author","Hoffmann, Ron"],["dc.contributor.author","Gibhardt, Holger"],["dc.contributor.author","Juenke, Norbert"],["dc.contributor.author","Knorr, Andreas"],["dc.contributor.author","Meyer, Volker"],["dc.contributor.author","Eckold, Goetz"],["dc.date.accessioned","2018-11-07T10:01:51Z"],["dc.date.available","2018-11-07T10:01:51Z"],["dc.date.issued","2015"],["dc.description.abstract","A new type of multiplex technique for three axes neutron spectrometers has been realized and successfully commissioned at the PUMA spectrometer at FRM II. Consisting of eleven analyser-detector channels which can be configured individually, this technique is especially suitable for kinetic experiments where a single excitation spectrum is recorded as a function of time without the need to move the spectrometer On a time-scale of seconds an entire spectrum can be recorded thus allowing users to monitor changes during fast kinetic processes in single shot experiments without the need for stroboscopic techniques. Moreover, the multianalyser system provides an efficient and rapid tool for mapping excitations in (Q,omega)-space. The results of pilot experiments demonstrate the performance of this new technique and a user-friendly software is presented which assists users during their experiments. (C) 2014 The Authors. Published by Elsevier B.V."],["dc.description.sponsorship","German Federal Ministry for Education and Research (BMBF) [05K10MG2]"],["dc.identifier.doi","10.1016/j.nima.2014.11.007"],["dc.identifier.isi","000346642200009"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/11228"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/38116"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Science Bv"],["dc.relation.issn","1872-9576"],["dc.relation.issn","0168-9002"],["dc.rights","CC BY-NC-ND 3.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc-nd/3.0"],["dc.title","The multianalyser system of the three axes neutron spectrometer PUMA: Pilot experiments with the innovative multiplex technique"],["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"]]