Structure and magnetic properties of epitaxial CaFe2O4 thin films
| Autor: | Hans Hilgenkamp, Jean Juraszek, Pim Reith, Silvia Damerio, Pavan Nukala, Beatriz Noheda |
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| Přispěvatelé: | Zernike Institute for Advanced Materials, University of Groningen [Groningen], Groupe de physique des matériaux (GPM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), Institute for Nanotechnology (MESA+), University of Twente [Netherlands], Interfaces and Correlated Electron Systems, Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université de Caen Normandie (UNICAEN), Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), University of Twente, Nanostructures of Functional Oxides, Solid State Materials for Electronics |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
FOS: Physical sciences 02 engineering and technology lcsh:Atomic physics. Constitution and properties of matter 01 natural sciences Pulsed laser deposition Magnetization Condensed Matter::Materials Science Phase (matter) 0103 physical sciences lcsh:TA401-492 Antiferromagnetism Thin film 010306 general physics CONDUCTIVITY CALCIUM-FERRITE Condensed Matter - Materials Science Condensed matter physics Spins Magnetic structure Materials Science (cond-mat.mtrl-sci) 021001 nanoscience & nanotechnology Condensed Matter Physics Electronic Optical and Magnetic Materials lcsh:QC170-197 Ferromagnetism MOSSBAUER [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] lcsh:Materials of engineering and construction. Mechanics of materials 0210 nano-technology |
| Zdroj: | Npj Quantum Materials Npj Quantum Materials, Nature publishing, 2020, 5 (1), ⟨10.1038/s41535-020-0236-2⟩ npj Quantum Materials npj Quantum Materials, 5(1):33. Nature Publishing Group npj Quantum Materials, Vol 5, Iss 1, Pp 1-10 (2020) Npj Quantum Materials, 2020, 5 (1), ⟨10.1038/s41535-020-0236-2⟩ Npj Quantum Materials, 5(1):33. Springer Nature |
| ISSN: | 2397-4648 |
| DOI: | 10.1038/s41535-020-0236-2⟩ |
| Popis: | CaFe2O4 is a highly anisotropic antiferromagnet reported to display two spin arrangements with up-up-down-down (phase A) and up-down-up-down (phase B) configurations. The relative stability of these phases is ruled by the competing ferromagnetic and antiferromagnetic interactions between Fe3+ spins arranged in two different environments, but a complete understanding of the magnetic structure of this material does not exist yet. In this study we investigate epitaxial CaFe2O4 thin films grown on TiO2 (110) substrates by means of Pulsed Laser Deposition (PLD). Structural characterization reveals the coexistence of two out-of-plane crystal orientations and the formation of three in-plane oriented domains. The magnetic properties of the films, investigated macroscopically as well as locally, including highly sensitive Mossbauer spectroscopy, reveal the presence of just one order parameter showing long-range ordering below T = 185 K and the critical nature of the transition. In addition, a non-zero in-plane magnetization is found, consistent with the presence of uncompensated spins at phase or domain boundaries, as proposed for bulk samples. Changes are made to take into account the newly published paper by Songvilay et al. (PRB 101,014407) Changes are in last sentence of the abstract, 5th paragraph of the discussion section and conclusions paragraph |
| Databáze: | OpenAIRE |
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