English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/148733
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Spin-phonon coupling in epitaxial Sr0.6Ba0.4MnO3 thin films

AuthorsGoian, V.; Langenberg, Eric; Marcano, N.; Bovtun, V.; Maurel, Laura; Kempa, M.; Prokscha, Thomas; Algarabel, Pedro A. ; Pardo, J. A.; Kamba, S.
Issue Date2017
PublisherAmerican Physical Society
CitationPhysical Review B 95(7): 075126 (2017)
AbstractSpin-phonon coupling is investigated in epitaxially strained Sr1-xBaxMnO3 thin films with perovskite structure by means of microwave (MW) and infrared (IR) spectroscopy. In this work we focus on the Sr0.6Ba0.4MnO3 composition grown on (LaAlO3)0.3(Sr2AlTaO6)0.7 substrate. The MW complex electromagnetic response shows a decrease in the real part and a clear anomaly in the imaginary part around 150 K. Moreover, it coincides with a 17% hardening of the lowest-frequency polar phonon seen in IR reflectance spectra. In order to further elucidate this phenomenon, low-energy muon-spin spectroscopy was carried out, signaling the emergence of antiferromagnetic order with Néel temperature (TN) around 150 K. Thus, our results confirm that epitaxial Sr0.6Ba0.4MnO3 thin films display strong spin-phonon coupling below TN, which may stimulate further research on tuning the magnetoelectric coupling by controlling the epitaxial strain and chemical pressure in the Sr1-xBaxMnO3 system.
DescriptionUnder the terms of the Creative Commons Attribution license.-- et al.
Publisher version (URL)https://doi.org/10.1103/PhysRevB.95.075126
Identifiersdoi: 10.1103/PhysRevB.95.075126
issn: 2469-9950
e-issn: 2469-9969
Appears in Collections:(ICMA) Artículos
Files in This Item:
File Description SizeFormat 
spin-phonon.pdf1,12 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.