Competing Magnetic Instability in Geometrically Frustrated Noncentrosymmetric Lattice

Competing magnetism has resurgence due to vast applicability and underlying intriguing physics, like in quantum computing. The competing interactions in rare‐earth‐based Nd 2 Se 3 having Th 3 P 4 ‐type noncentrosymmetric cubic lattice are reported. The temperature‐dependent magnetization measurements suggest a magnetic transition at 10 K, followed by large magnetic irreversibility in the low‐temperature regime (). The field‐induced ferromagnetism is supported by isothermal magnetization measurement. Observation of nonsaturating feature with low magnetization value (/Nd) at T = 2 K suggests noncollinear magnetism. The low hysteresis area with negligible coercivity suggests weak ferromagnetic response. Further, second‐order phase transition is confirmed by positive slopes of Arrott plots and associated negative magnetization entropy change. The asymmetric distribution of entropy around the is evocative of the presence of competing short‐range interactions. The results from the frequency‐dependent AC‐susceptibility measurements have suggested competing magnetic interactions, which are suppressed gradually with an increase in the applied dc‐field.