Kock, Iris

[["dc.bibliographiccitation.artnumber","113054"],["dc.bibliographiccitation.firstpage","113054"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","New Journal of Physics"],["dc.bibliographiccitation.volume","11"],["dc.contributor.affiliation","Kühnemund, L;"],["dc.contributor.affiliation","Edler, T;"],["dc.contributor.affiliation","Kock, I;"],["dc.contributor.affiliation","Seibt, M;"],["dc.contributor.affiliation","Mayr, S G;"],["dc.contributor.author","Kuehnemund, Lisa"],["dc.contributor.author","Edler, T."],["dc.contributor.author","Kock, Iris"],["dc.contributor.author","Seibt, M."],["dc.contributor.author","Mayr, Stefan G."],["dc.date.accessioned","2018-11-07T11:21:50Z"],["dc.date.available","2018-11-07T11:21:50Z"],["dc.date.issued","2009"],["dc.date.updated","2022-02-09T15:47:44Z"],["dc.description.abstract","To achieve maximum performance in microscale magnetic shape memory actuation devices epitaxial films several hundred nanometers thick are needed. Epitaxial films were grown on hot MgO substrates (500 degrees C and above) by e-beam evaporation. Structural properties and stress relaxation mechanisms were investigated by high-resolution transmission electron microscopy, in situ substrate curvature measurements and classical molecular dynamics (MD) simulations. The high misfit stress incorporated during Vollmer-Weber growth at the beginning was relaxed by partial or perfect dislocations depending on the substrate temperature. This relaxation allowed the avoidance of a stress-induced breakdown of epitaxy and no thickness limit for epitaxy was found. For substrate temperatures of 690 degrees C or above, the films grew in the fcc austenite phase. Below this temperature, iron precipitates were formed. MD simulations showed how these precipitates influence the movements of partial dislocations, and can thereby explain the higher stress level observed in the experiments in the initial stage of growth for these films."],["dc.description.sponsorship","German DFG [SPP 1239, TP C4]"],["dc.identifier.doi","10.1088/1367-2630/11/11/113054"],["dc.identifier.eissn","1367-2630"],["dc.identifier.isi","000272153400005"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/4054"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/55873"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Iop Publishing Ltd"],["dc.relation.issn","1367-2630"],["dc.relation.orgunit","Fakultät für Physik"],["dc.rights","Goescholar"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goedoc.uni-goettingen.de/licenses"],["dc.subject.ddc","530"],["dc.title","Epitaxial growth and stress relaxation of vapor-deposited Fe-Pd magnetic shape memory films"],["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","046108"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Journal of Applied Physics"],["dc.bibliographiccitation.volume","103"],["dc.contributor.author","Kock, Iris"],["dc.contributor.author","Edler, T."],["dc.contributor.author","Mayr, Stefan G."],["dc.date.accessioned","2018-11-07T11:18:17Z"],["dc.date.available","2018-11-07T11:18:17Z"],["dc.date.issued","2008"],["dc.description.abstract","Iron palladium based alloys are promising candidates to realize miniaturized magnetic shape memory devices on a thin film basis and also bear interesting magnetic properties, particularly for the area of magnetic recording. To address the impact of growth conditions on physical properties, thin vapor-deposited Fe(70)Pd(30) films are analyzed with respect to structure, texture, and stress as a function of processing parameters. We find that deposition at room temperature leads to a bct structure, while deposition at elevated temperature as well as annealing results in austenitic films in the fcc phase, which is desirable for magnetic shape memory applications. (c) 2008 American Institute of Physics."],["dc.identifier.isi","000254191300094"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/55002"],["dc.notes.intern","10.1063/1,2875306"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Inst Physics"],["dc.relation.issn","0021-8979"],["dc.title","Growth behavior and intrinsic properties of vapor-deposited iron palladium thin films"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","5949"],["dc.bibliographiccitation.issue","18"],["dc.bibliographiccitation.journal","Acta Materialia"],["dc.bibliographiccitation.lastpage","5961"],["dc.bibliographiccitation.volume","58"],["dc.contributor.author","Hamann, Sven"],["dc.contributor.author","Gruner, M. E."],["dc.contributor.author","Irsen, Stephan"],["dc.contributor.author","Buschbeck, Joerg"],["dc.contributor.author","Bechtold, C."],["dc.contributor.author","Kock, Iris"],["dc.contributor.author","Mayr, Stefan G."],["dc.contributor.author","Savan, A."],["dc.contributor.author","Thienhaus, S."],["dc.contributor.author","Quandt, E."],["dc.contributor.author","Faehler, Sebastian"],["dc.contributor.author","Entel, Peter"],["dc.contributor.author","Ludwig, A."],["dc.date.accessioned","2018-11-07T08:38:11Z"],["dc.date.available","2018-11-07T08:38:11Z"],["dc.date.issued","2010"],["dc.description.abstract","A new ferromagnetic shape memory thin film system. Fe-Pd-Cu, was developed using ab initio calculations, combinatorial fabrication and high-throughput experimentation methods. Reversible martensitic transformations are found in extended compositional regions, which have increased fcc-fct transformation temperatures in comparison to previously published results. High resolution transmission electron microscopy verified the existence of a homogeneous ternary phase without precipitates. Curie temperature, saturation polarization and orbital magnetism are only moderately decreased by alloying with nonmagnetic Cu Compared to the binary system; enhanced Invar-type thermal expansion anomalies in terms of an increased volume magnetostriction are predicted. Complementary experiments on splat-fabricated bulk Fe-Pd-Cu samples showed an enhanced stability of the disordered transforming Fe(70)Pd(30) phase against decomposition. From the comparison of bulk and thin film results, it can be Inferred that, for ternary systems, the Fe content, rather than the valence electron concentration, should be regarded as the decisive factor determining the fcc-fct transformation temperature (C) 2010 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved"],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft (DFG) [SPP 1239]; Heisenberg programme"],["dc.identifier.doi","10.1016/j.actamat.2010.07.011"],["dc.identifier.isi","000282558100008"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18709"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","1359-6454"],["dc.title","The ferromagnetic shape memory system Fe-Pd-Cu"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","877"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Intermetallics"],["dc.bibliographiccitation.lastpage","882"],["dc.bibliographiccitation.volume","18"],["dc.contributor.author","Kock, Iris"],["dc.contributor.author","Hamann, Sven"],["dc.contributor.author","Brunken, Hayo"],["dc.contributor.author","Edler, Tobias"],["dc.contributor.author","Mayr, Stefan G."],["dc.contributor.author","Ludwig, Alfred"],["dc.date.accessioned","2018-11-07T08:43:35Z"],["dc.date.available","2018-11-07T08:43:35Z"],["dc.date.issued","2010"],["dc.description.abstract","Freestanding Fe70Pd30 foils with a thickness of about 60 pm were fabricated using the splat-quenching technique. A shift of the martensitic transformation temperatures as a function of different annealing treatments (600 degrees C, 700 degrees C, 800 degrees C, 900 degrees C, 1000 degrees C for 15 min) was observed by temperature-dependent X-ray diffraction (XRD), resistance and magnetization measurements. The sample annealed at 800 degrees C showed the highest degree of crystallinity for the (200) fcc austenite peak and no secondary phases. Samples annealed below 800 degrees C kept austenite remainders even at -25 degrees C. The transformation temperatures, determined by all three-measurement methods, showed an increase with increasing annealing temperature. (C) 2009 Elsevier Ltd. All rights reserved."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft (DFG) [(SPP) 1239 TP C4, C8]"],["dc.identifier.doi","10.1016/j.intermet.2009.12.019"],["dc.identifier.isi","000277494400019"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20003"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Sci Ltd"],["dc.relation.issn","0966-9795"],["dc.title","Development and characterization of Fe70Pd30 ferromagnetic shape memory splats"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]