title: Microscopic origin of the surface tension anomaly of water.
abstract: We investigate the hydrogen bonding percolation threshold of water molecules at the surface of the liquid-vapor interface. We show that the percolation temperature agrees within statistical accuracy with the high-temperature inflection point of the water surface tension. We associate the origin of this surface tension anomaly of water with the sudden breakup of the hydrogen-bonding network in the interfacial molecular layer.
authors.affiliation: Department of Physics, University of Rome "Tor Vergata" , Rome, Italy.
authors.forename: Marcello
authors.initials: M
authors.lastname: Sega
authors.forename: George
authors.initials: G
authors.lastname: Horvai
authors.forename: Pál
authors.initials: P
authors.lastname: Jedlovszky