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dc.contributor.authorCramer, Joel
dc.contributor.authorGuo, Er-Jia
dc.contributor.authorGeprägs, Stephan
dc.contributor.authorKehlberger, Andreas
dc.contributor.authorIvanov, Yurii P.
dc.contributor.authorGanzhorn, Kathrin
dc.contributor.authorDella Coletta, Francesco
dc.contributor.authorAlthammer, Matthias
dc.contributor.authorHuebl, Hans
dc.contributor.authorGross, Rudolf
dc.contributor.authorKosel, Jürgen
dc.contributor.authorKläui, Mathias
dc.contributor.authorGoennenwein, Sebastian T. B.
dc.date.accessioned2017-10-03T12:49:26Z
dc.date.available2017-10-03T12:49:26Z
dc.date.issued2017-04-13
dc.identifier.citationCramer J, Guo E-J, Geprägs S, Kehlberger A, Ivanov YP, et al. (2017) Magnon Mode Selective Spin Transport in Compensated Ferrimagnets. Nano Letters 17: 3334–3340. Available: http://dx.doi.org/10.1021/acs.nanolett.6b04522.
dc.identifier.issn1530-6984
dc.identifier.issn1530-6992
dc.identifier.doi10.1021/acs.nanolett.6b04522
dc.identifier.urihttp://hdl.handle.net/10754/625576
dc.description.abstractWe investigate the generation of magnonic thermal spin currents and their mode selective spin transport across interfaces in insulating, compensated ferrimagnet/normal metal bilayer systems. The spin Seebeck effect signal exhibits a nonmonotonic temperature dependence with two sign changes of the detected voltage signals. Using different ferrimagnetic garnets, we demonstrate the universality of the observed complex temperature dependence of the spin Seebeck effect. To understand its origin, we systematically vary the interface between the ferrimagnetic garnet and the metallic layer, and by using different metal layers we establish that interface effects play a dominating role. They do not only modify the magnitude of the spin Seebeck effect signal but in particular also alter its temperature dependence. By varying the temperature, we can select the dominating magnon mode and we analyze our results to reveal the mode selective interface transmission probabilities for different magnon modes and interfaces. The comparison of selected systems reveals semiquantitative details of the interfacial coupling depending on the materials involved, supported by the obtained field dependence of the signal.
dc.description.sponsorshipThe authors express their gratitude to Professor Gerrit E. W. Bauer and Dr. Joe Barker for valuable discussions and the Institute for Materials Research at Tohoku University for the hospitality during a visiting researcher stay (M.K.). Furthermore, they would like to thank Professor Kathrin Dorr for the help in sample preparation. This work was supported by Deutsche Forschungsgemeinschaft (DFG) SPP 1538 Spin Caloric Transport, the Graduate School of Excellence Materials Science in Mainz (MAINZ, DFG/GSC 266), and the EU projects (IFOX, NMP3-LA-2012246102, INSPIN FP7-ICT-2013-X 612759) and the DAAD (SpinNet and MaHoJeRo during the manuscript preparation). During the manuscript preparation, this work was also partially supported by the U.S. Department of Energy (DOE), Office of Science (OS), Basic Energy Sciences (BES), and by the Laboratory Directed Research and Development (LDRD) Program of Oak Ridge National Laboratory (ORNL) managed by UT-Battelle, LLC, for the U.S. DOE.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acs.nanolett.6b04522
dc.subjectcompensated ferrimagnet
dc.subjectmagnon coupling
dc.subjectSpin current
dc.subjectspin Seebeck effect
dc.titleMagnon Mode Selective Spin Transport in Compensated Ferrimagnets
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journalNano Letters
dc.contributor.institutionGraduate School of Excellence Materials Science in Mainz, Mainz, 55128, , Germany
dc.contributor.institutionInstitut für Physik, Johannes Gutenberg-Universität Mainz, Mainz, 55099, , Germany
dc.contributor.institutionQuantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, , United States
dc.contributor.institutionWalther-Meißner-Institut, Bayerische Akademie der Wissenschaften, Garching, 85748, , , Germany
dc.contributor.institutionSchool of Natural Sciences, Far Eastern Federal University, Vladivostok, 690950, , Russian Federation
dc.contributor.institutionErich Schmid Institute of Materials Science, Austrian Academy of Sciences, Leoben, A-8700, , , Austria
dc.contributor.institutionPhysik-Department, Technische Universität München, Garching, 85748, , Germany
dc.contributor.institutionNanosystems Initiative Munich (NIM), Schellingstraße 4, München, 80799, , Germany
dc.contributor.institutionInstitut für Festkörperphysik, Technische Universität Dresden, Dresden, 01062, , Germany
dc.identifier.arxividarXiv:1703.03218
kaust.personIvanov, Yurii P.
kaust.personKosel, Jürgen


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