Baghaie Yazdi, M. ; Choi, K.-Y. ; Wulferding, D. ; Lemmens, P. ; Alff, L. (2023)
Raman study of the Verwey transition in magnetite thin films.
In: New Journal of Physics, 2013, 15 (10)
doi: 10.26083/tuprints-00020568
Article, Secondary publication, Publisher's Version
There is a more recent version of this item available. |
Abstract
We have grown epitaxial thin films of magnetite on MgO and Al₂O₃ substrates with sharp and distinct signatures of the Verwey transition in resistivity and magnetization. We have used Raman scattering to separate the footprint of purely structural changes from the effect of additional charge and orbital order. Raman modes related to the structural phase transition occur first at temperatures above the Verwey transition temperature. In contrast, newly emerging modes indicating additional charge and orbital order appear at the Verwey transition. These results suggest that the completion of the structural phase transition in magnetite is a necessary precursor triggering a transition into a complex charge and orbitally ordered state.
Item Type: | Article |
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Erschienen: | 2023 |
Creators: | Baghaie Yazdi, M. ; Choi, K.-Y. ; Wulferding, D. ; Lemmens, P. ; Alff, L. |
Type of entry: | Secondary publication |
Title: | Raman study of the Verwey transition in magnetite thin films |
Language: | English |
Date: | 5 December 2023 |
Place of Publication: | Darmstadt |
Year of primary publication: | 2013 |
Place of primary publication: | London |
Publisher: | IOP Publishing |
Journal or Publication Title: | New Journal of Physics |
Volume of the journal: | 15 |
Issue Number: | 10 |
Collation: | 8 Seiten |
DOI: | 10.26083/tuprints-00020568 |
URL / URN: | https://tuprints.ulb.tu-darmstadt.de/20568 |
Corresponding Links: | |
Origin: | Secondary publication DeepGreen |
Abstract: | We have grown epitaxial thin films of magnetite on MgO and Al₂O₃ substrates with sharp and distinct signatures of the Verwey transition in resistivity and magnetization. We have used Raman scattering to separate the footprint of purely structural changes from the effect of additional charge and orbital order. Raman modes related to the structural phase transition occur first at temperatures above the Verwey transition temperature. In contrast, newly emerging modes indicating additional charge and orbital order appear at the Verwey transition. These results suggest that the completion of the structural phase transition in magnetite is a necessary precursor triggering a transition into a complex charge and orbitally ordered state. |
Identification Number: | 103032 |
Status: | Publisher's Version |
URN: | urn:nbn:de:tuda-tuprints-205686 |
Classification DDC: | 500 Science and mathematics > 530 Physics 500 Science and mathematics > 540 Chemistry |
Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science |
Date Deposited: | 05 Dec 2023 10:15 |
Last Modified: | 06 Dec 2023 08:56 |
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