Mechanism of oxygen discount through chemical affinity in NiO/SiO2 interfaces irradiated with keV vitality hydrogen and helium ions for heterostructure fabrication

Nanoscale Horiz., 2025, Advance Article
DOI: 10.1039/D4NH00460D, Communication

Mario Mery, Claudio Gonzalez-Fuentes, Igor Stanković, Jorge M. Nuñez, Jorge E. Valdés, Myriam H. Aguirre, Carlos García
We present that H⁺ irradiation considerably enhances the discount of antiferromagnetic NiO into ferromagnetic Ni as a result of hydrogen’s sturdy chemical affinity for oxygen. The selective elimination of oxygen allows the formation of a high-purity Ni layer.
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