Experimental evidence of the ferroelectric phase transition near the   $\lambda-$point in liquid water
  We studied dielectric properties of nano-sized liquid water samples confined in polymerized silicates MCM-41 characterized by the porous sizes \sim 3-10nm. We report the direct measurements of the dielectric constant by the dielectric spectroscopy method at frequencies 25Hz-1MHz and demonstrate clear signatures of the second-order phase transition of ferroelectric nature at temperatures next to the \lambda- point in the bulk supercooled water. The presented results support the previously developed polar liquid phenomenology and hence establish its applicability to model actual phenomena in liquid water. 
P.O. Fedichev, L.I. Menshikov, G.S. Bordonskiy, A.O. Orlov
cond-mat.soft cond-mat.mes-hall physics.chem-ph