Witte, Ralf ; Kruk, Robert ; Gruner, Markus E. ; Brand, Richard A. ; Wang, Di ; Schlabach, Sabine ; Beck, Andre ; Provenzano, Virgil ; Pentcheva, Rossitza ; Wende, Heiko ; Hahn, Horst (2016)
Tailoring magnetic frustration in strained epitaxial FeRh films.
In: Physical Review B, 93 (10)
doi: 10.1103/PhysRevB.93.104416
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We report on a strain-induced martensitic transformation, accompanied by a suppression of magnetic order in epitaxial films of chemically disordered FeRh. X-ray diffraction, transmission electronmicroscopy, and electronic structure calculations reveal that the lowering of symmetry (from cubic to tetragonal) imposed by the epitaxial relation leads to a further, unexpected, tetragonal-to-orthorhombic transition, triggered by a band-Jahn-Teller-type lattice instability. The collapse of magnetic order is a direct consequence of this structural change, which upsets the subtle balance between ferromagnetic nearest-neighbor interactions arising from Fe-Rh hybridization and frustrated antiferromagnetic coupling among localized Fe moments at larger distances.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Witte, Ralf ; Kruk, Robert ; Gruner, Markus E. ; Brand, Richard A. ; Wang, Di ; Schlabach, Sabine ; Beck, Andre ; Provenzano, Virgil ; Pentcheva, Rossitza ; Wende, Heiko ; Hahn, Horst |
| Art des Eintrags: | Bibliographie |
| Titel: | Tailoring magnetic frustration in strained epitaxial FeRh films |
| Sprache: | Englisch |
| Publikationsjahr: | 16 März 2016 |
| Verlag: | American Physical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review B |
| Jahrgang/Volume einer Zeitschrift: | 93 |
| (Heft-)Nummer: | 10 |
| DOI: | 10.1103/PhysRevB.93.104416 |
| Kurzbeschreibung (Abstract): | We report on a strain-induced martensitic transformation, accompanied by a suppression of magnetic order in epitaxial films of chemically disordered FeRh. X-ray diffraction, transmission electronmicroscopy, and electronic structure calculations reveal that the lowering of symmetry (from cubic to tetragonal) imposed by the epitaxial relation leads to a further, unexpected, tetragonal-to-orthorhombic transition, triggered by a band-Jahn-Teller-type lattice instability. The collapse of magnetic order is a direct consequence of this structural change, which upsets the subtle balance between ferromagnetic nearest-neighbor interactions arising from Fe-Rh hybridization and frustrated antiferromagnetic coupling among localized Fe moments at larger distances. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Gemeinschaftslabor Nanomaterialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 21 Jul 2017 11:16 |
| Letzte Änderung: | 21 Jul 2017 11:16 |
| PPN: | |
| Sponsoren: | We acknowledge funding by the Deutsche Forschungsgemeinschaft via HA1344/28-1, TRR 80 and SPP 1599. |
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