Ghalsasi, PallaviPallaviGhalsasiPoswal, H. K.H. K.PoswalTripathi, RaviRaviTripathiGarg, NandiniNandiniGargDeo, M. N.M. N.DeoSharma, Surinder M.Surinder M.Sharma2025-08-302025-08-302012-01-0110.1088/1742-6596/377/1/0120092-s2.0-84865043579https://d8.irins.org/handle/IITG2025/21054Recent discovery of colossal negative thermal expansion (NTE) behaviour in Silver Hexacyanocobaltate Ag<inf>3</inf>[Co(CN)<inf>6</inf>] has triggered interest among researchers to understand the basic mechanism causing such an unusual behaviour. This report presents our results on the behaviour of Ag <inf>3</inf>[Co(CN)<inf>6</inf>] using in-situ high pressure Raman and FTIR spectroscopy. The reported trigonal-monoclinic phase transition occurring in this compound is observed at 0.2 GPa. Upon increasing the pressure further, Ag<inf>3</inf>[Co(CN)<inf>6</inf>] becomes irreversibly amorphous above 13 GPa.trueConference Paperhttps://iopscience.iop.org/article/10.1088/1742-6596/377/1/012009/pdf1742659620123012009cpConference Proceeding3