所長招聘セミナー

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演　題	「Water – A Tale of Two Liquids」
日　時	2016年01月18日(月) 15:00 より 16:00 まで
講演者	Prof. Lars G.M. Pettersson （FYSIKUM, Stockholm Univ., Sweden）
場　所	研究棟2階 201セミナー室
概　要	I will discuss recent experimental and simulation data of liquid water and the picture of fluctuations between high-density (HDL) and low-density (LDL) liquid this has led to [1,2,3]. Such a two-liquid scenario would explain many anomalous properties, e.g., density maximum, heat capacity and isothermal compressibility minima, but no direct connection has been found to simulations of ambient water. Here I will focus on the temperature dependence in the O-O pair-distribution function at intermediate range (<18 Å) which has recently been measured with good statistics [4]. [1] Lars G.M. Pettersson and Anders Nilsson, The Structure of Water; from Ambient to Deeply Supercooled, J. Non-Crystalline Solids 407, 399-417 (2015). [2] J. A. Sellberg et al., Ultrafast X-ray probing of water structure below the homogeneous ice nucleation temperature, Nature 510, 381 (2014). [3] Anders Nilsson and Lars G.M. Pettersson, The Structural Origin of Anomalous Properties of Liquid Water, Nature Commun. 6, 8998 (2015). [4] L. B. Skinner et al., The Structure of Water Around the Compressibility Minimum, J. Chem. Phys. 141, 214507 (2014).
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