We synthesized V2O5 nanoparticles using a sol–gel method and observed a notable reduction in the optical band gap with higher calcination temperatures. While structural changes were minimal, the introduction of oxygen vacancies was found to reduce the band gap and promote a ferromagnetic response. This discovery suggests a potential method to design innovative devices. Instagram post here.
Members of the Nanomagnetism Group measured X-ray Spectroscopy in the soft X-rays (100 to 1500 eV) energy range in the Planar Grating Monochromator (PGM)-beamline in Campinas Brazil. Mr. Alexander Cardona (Phd student), studied during his visit the magnetism of BiFeO3 NPs looking at the L2,3-edge of Fe and k-edge of O.
Nanomag participó con charlas/posters en la 4 Escuela de Física estadística en Uniandes/UNAL
Our paper:
Andrej Singer, Juan Gabriel Ramirez, Ilya Valmianski, Devin Cela, Nelson Hua, Roopali Kukreja, James Wingert, Olesya Kovalchuk, James M. Glownia, Marcin Sikiroski, Matthieu Chollet, Martin Holt, Ivan K. Schuller and Oleg G. Shpyrko, Non-equilibrium phase precursors to the insulator-metal transition in V2O3, arXiv:1709.04426. Accepted in Phys. Rev. Lett.
Just got accepted in Phys. Rev. Lett.