Cond-mat Update

Wed, 04 February 2026 from Nat_Mater (3 papers)
Collective photon emission and ferroelectric exciton ordering near Mott insulating state in WSe2/WS2 heterobilayers
Water-soluble hexagonal BaAl2O4 as sacrificial layer for freestanding crystalline membranes and flexible devices
Unexpected strong paramagnetism of hydrogels containing carbon–oxygen double bonds induced by calcium cations