117211 20230519145553.0 doi 10.1021/acs.jpclett.1c03418 sideral 126753 ART-2021-126753 eng Bugallo D. Tuning coherent-phonon heat transport in LaCoO3/SrTiO3 superlattices 2021 Access copy available to the general public Unrestricted Accessing the regime of coherent phonon propagation in nanostructures opens enormous possibilities to control the thermal conductivity in energy harvesting devices, phononic circuits, etc. In this paper we show that coherent phonons contribute substantially to the thermal conductivity of LaCoO3/SrTiO3 oxide superlattices, up to room temperature. We show that their contribution can be tuned through small variations of the superlattice periodicity, without changing the total superlattice thickness. Using this strategy, we tuned the thermal conductivity by 20% at room temperature. We also discuss the role of interface mixing and epitaxial relaxation as an extrinsic, material dependent key parameter for understanding the thermal conductivity of oxide superlattices. © 2021 The Authors. Published by American Chemical Society. info:eu-repo/grantAgreement/EC/H2020/734187/EU/Spin conversion, logic storage in oxide-based electronics/SPICOLOST This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 734187-SPICOLOST info:eu-repo/grantAgreement/ES/MICINN-FEDER/PID2019-104150RB-I00 info:eu-repo/grantAgreement/ES/MINECO/MAT2016-80762-R info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 6.888 2021 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 5 / 36 = 0.139 2021 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 88 / 345 = 0.255 2021 Q2 T1 NANOSCIENCE & NANOTECHNOLOGY 41 / 109 = 0.376 2021 Q2 T2 CHEMISTRY, PHYSICAL 46 / 165 = 0.279 2021 Q2 T1 2.009 2021 Nanoscience and Nanotechnology 2021 Q1 Materials Science (miscellaneous) 2021 Q1 9.8 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Langenberg E. Carbó-Argibay E. Varela Dominguez N. Fumega A.O. Pardo V. Lucas, I. Universidad de Zaragoza (orcid)0000-0003-0271-8713 Morellón, L. Universidad de Zaragoza (orcid)0000-0003-3724-508X Rivadulla F. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 12, 49 (2021), 11878-11885 JOURNAL OF PHYSICAL CHEMISTRY LETTERS Journal of Physical Chemistry Letters 1948-7185 5324167 http://zaguan.unizar.es/record/117211/files/texto_completo.pdf Versión publicada 2914296 http://zaguan.unizar.es/record/117211/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:117211 articulos driver 2023-05-18-15:52:05 ARTICLE