Investigating the Magnon Bose-Einstein Condensate State of K2Ni(MoO4)2

Low-dimensional quantum magnets, characterized by strong quantum fluctuations, offer a rich playground for studying exotic magnetic phenomena. Among these, dimerized quantum magnets are of particular interest for their potential to host a Bose-Einstein Condensate (BEC) of magnetic excitations. While extensive research has focused on S = 1/2 dimer systems, the exploration of S = 1 dimers remains limited. In this talk, we present our investigation of the S = 1 dimerized quantum magnet K₂Ni(MoO₄)₂, a promising candidate for studying quintuplon condensation. We report on the synthesis and characterization of high-quality single-crystal samples, supported by thermodynamic and magnetic measurements. Our findings reveal a spin gap behavior consistent with singlet-triplet excitations and the appearance of a magnetization plateau at m = 1/2 under high magnetic fields. We also outline our experimental approach, including proposed Tunnel Diode Oscillator (TDO) experiments, to further explore the magnetic structures at the plateau and investigate the role of anisotropy and hydrostatic pressure in this system.