61838 20180723112133.0 doi 10.1103/PhysRevB.95.075126 sideral 100377 ART-2017-100377 eng Goian, V. Spin-phonon coupling in epitaxial Sr0.6Ba0.4MnO3 thin films 2017 Access copy available to the general public Unrestricted Spin-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. info:eu-repo/grantAgreement/ES/DGA/E26 info:eu-repo/grantAgreement/ES/MINECO/MAT2014-51982-C2 info:eu-repo/semantics/openAccess by-nc http://creativecommons.org/licenses/by-nc/3.0/es/ 3.813 2017 PHYSICS, CONDENSED MATTER 18 / 67 = 0.269 2017 Q2 T1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0002-6944-4713 Langenberg, E. (orcid)0000-0002-5331-9758 Marcano, N. Universidad de Zaragoza Bovtun, V. (orcid)0000-0002-6487-1505 Maurel, L. Kempa, M. Prokscha, T. Kroupa, J. (orcid)0000-0002-4698-3378 Algarabel, P.A. Universidad de Zaragoza (orcid)0000-0002-0111-8284 Pardo, J.A. Universidad de Zaragoza Kamba, S. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 95, 7 (2017), 075126 Phys. Rev. B Physical Review B 2469-9950 1142486 http://zaguan.unizar.es/record/61838/files/texto_completo.pdf Versión publicada 136092 http://zaguan.unizar.es/record/61838/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:61838 articulos driver 2018-07-23-11:15:34 ARTICLE