Oxidation-induced irreversible phase transformation of ethyltriphenylphosphonium-based copper chloride single crystals for achieving second harmonic generation and magnetism

Abstract

The irreversible transformation of ETPCuCl₂ into ETPCuCl₃ achieves functional switching from second harmonic generation to magnetism through an oxidation-induced phase transformation strategy, which not only offers a new approach to the design of novel multifunctional materials, but also guides applications in optical and spintronic devices.