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oai:docta.ucm.es:20.500.14352/1318412026-02-07T00:55:35Zcom_20.500.14352_14col_20.500.14352_15

Anisotropic growth of ferberite (FeWO4) on W(110) by high-temperature oxygen-assisted molecular beam epitaxy Gutiérrez-Cuesta, Clara del Campo, Adolfo Rojo, Víctor Marco, José F. Cojocariu, Iulia Szpytma, Marcin Fevola, Giovanni Mascaraque Susunaga, Arantzazu Menteş, Tevfik Onur Locatelli, Andrea Quesada, Adrián de la Figuera, Juan Prieto, José Emilio 620.1 548 Iron tungstate Epitaxial growth Nanowires Oxygen assisted molecular beam epitaxy Low-energy electron microscopy Photoemission electron microscopy Física de materiales 2211 Física del Estado Sólido 2211.04 Cristalografía 33 Ciencias Tecnológicas © 2025 The Authors. ReMade-at-ARI, ID: 101058414; ReMade-at-ARI, ID: 10039728; ReMade-at-ARI, Contract 22.00187. We report on the growth of nanowires of ferberite (FeWO) by high-temperature oxygen-assisted molecular beam epitaxy on W(110). This multifunctional material has promising applications in different fields. The wires extend for several millimeters in length, with widths in the hundreds and heights in the tens of nanometers. We have monitored the growth process by real-time low-energy electron microscopy and characterized the wires in-situ by low-energy electron microscopy and laterally-resolved X-ray absorption and photoelectron spectroscopies. Further analysis was performed ex-situ by atomic force and optical microscopies as well as by Raman spectroscopy. The growth of ferberite on W(110) was possible by dosing iron in a molecular oxygen atmosphere likely due to the formation of highly mobile WO units that can be incorporated into the anisotropic wolframite structure, which in turn is responsible for the highly anisotropic growth. We propose that the same method may be used for the growth of other tungstate or related compounds. European Commission Ministerio de Ciencia e Investigación (España) Agencia Estatal de Investigación (España) Comunidad de Madrid UK Research and Innovation Swiss State Secretariat for Education, Research and Innovation Depto. de Física de Materiales Fac. de Ciencias Físicas TRUE pub 2026-02-06T16:53:25Z 2026-02-06T16:53:25Z 2026-03 journal article VoR https://hdl.handle.net/20.500.14352/131841 0169-4332 10.1016/j.apsusc.2025.165655 1873-5584 eng info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-124585NB-C31/ES/CRECIMIENTO, OBSERVACION Y MANIPULACION DE DOMINIOS EN MATERIALES ANTIFERROMAGNETICOS, SISTEMAS HIBRIDOS Y DISPOSITIVOS PARA ESPINTRONICA/ PID2021-124585NB-C33 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/TED2021-130957B-C54 TEC-2024/TEC-380/Mag4TIC-CM info:eu-repo/grantAgreement/EC/HE/101129912 C. Gutiérrez-Cuesta, A. Del Campo, V. Rojo, J.F. Marco, I. Cojocariu, M. Szpytma, G. Fevola, A. Mascaraque, T.O. Menteş, A. Locatelli, A. Quesada, J. De La Figuera, J.E. Prieto, Anisotropic growth of ferberite (FeWO 4 ) on W(110) by high-temperature oxygen-assisted molecular beam epitaxy, Applied Surface Science 723 (2026) 165655. https://doi.org/10.1016/j.apsusc.2025.165655. Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ open access application/pdf Elsevier