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We report the existence of magnetic order at room temperature in Li-doped ZnO microwires after low energy H+ implantation. The microwires with diameters between 0.3 and 10 μm were prepared by a carbothermal process. We combine spectroscopy techniques to elucidate the influence of the electronic structure and local environment of Zn, O, and Li and their vacancies on the magnetic response. Ferromagnetism at room temperature is obtained only after implanting H+ in Li-doped ZnO. The overall results indicate that low-energy proton implantation is an effective method to produce the necessary amount of stable Zn vacancies near the Li ions to trigger the magnetic order.Fil: Lorite, I.. Fakultät für Physik und Geowissenschaften; AlemaniaFil: Straube, Benjamin. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Solido; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ohldag, H.. University Of Stanford; Estados UnidosFil: Kumar, P.. Fakultät für Physik und Geowissenschaften; AlemaniaFil: Villafuerte, Manuel Jose. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Solido; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Esquinazi, P.. Fakultät für Physik und Geowissenschaften; AlemaniaFil: Rodriguez Torres, Claudia Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Física La Plata; ArgentinaFil: Perez de Huelani, S.. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Física. Laboratorio de Física del Solido; ArgentinaFil: Antonov, V. N.. Institute for Metal Physics; Ucrania. Max Planck Institut für Mikrostrukturphysik; AlemaniaFil: Bekenov, L. V.. Institute for Metal Physics; Ucrania. Max Planck Institut für Mikrostrukturphysik; AlemaniaFil: Ernst, A.. Max Planck Institut für Mikrostrukturphysik; Alemania. Universitat Leipzig; AlemaniaFil: Hoffmann, M.. Max Planck Institut für Mikrostrukturphysik; Alemania.  Martin Luther University Halle-Wittenberg; AlemaniaFil: Nayak, S. K..  Martin Luther University Halle-Wittenberg; AlemaniaFil: Adeagbo, W. A..  Martin Luther University Halle-Wittenberg; AlemaniaFil: Fischer, G.. Max Planck Institut für Mikrostrukturphysik; AlemaniaFil: Hergert. W..  Martin Luther University Halle-Wittenberg; Alemani

Advances in methods to obtain and characterise room temperature magnetic ZnO