Faculty Profiles - MATSUMOTO Masakazu

MISC - MATSUMOTO Masakazu

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27pEG-1 On Designing the Quasicrystal Clathrate Hydrates

Matsumoto M.

Meeting abstracts of the Physical Society of Japan 66 ( 1 ) 833 - 833 2011.3

25pTB-3 Theoretical Study on Crystallization Processes of Methane Hydrate

Matsumoto M., Sum Amadeu K.

Meeting abstracts of the Physical Society of Japan 65 ( 2 ) 334 - 334 2010.8

24aTG-9 Dynamics of Water under Gas High Pressure and Formation Mechanism of Gas Hydrates II

Kikuchi T., Matsumoto M., Yamamuro O.

Meeting abstracts of the Physical Society of Japan 65 ( 2 ) 321 - 321 2010.8

20pEF-2 Theoretical Study on Crystallization Processes of Methane Hydrate

Matsumoto M., Sum Amadeu K.

Meeting abstracts of the Physical Society of Japan 65 ( 1 ) 375 - 375 2010.3

26pPSA-5 Liquid-liquid transition without density anomaly

Matsumoto Masakazu

Meeting abstracts of the Physical Society of Japan 64 ( 2 ) 271 - 271 2009.8

27pVC-2 Origin of Density Anomaly of Water

Matsumoto Masakazu

Meeting abstracts of the Physical Society of Japan 64 ( 1 ) 360 - 360 2009.3

21aVA-5 Microscopic Structure of Water at Liquid-Liquid Coexistence

Matsumoto Masakazu, Kamiya Motoshi

Meeting abstracts of the Physical Society of Japan 63 ( 2 ) 306 - 306 2008.8

25pPSB-22 Interplay between Crystal Nucleation and Liquid-Liquid transition in Networkforming Liquids

Matsumoto Masakazu, Ohmine Iwao

Meeting abstracts of the Physical Society of Japan 63 ( 1 ) 376 - 376 2008.2

23pRJ-3 The microscopic mechanism of Ice melting

Mochizuki K., Matsumoto M., Ohmine I., Saito S.

Meeting abstracts of the Physical Society of Japan 62 ( 2 ) 374 - 374 2007.8

24aPS-107 Proton Transfer and Ordering in Ice

Shinmi Akira, Egami Tomoyuki, Matsumoto Masakazu, Ohmine Iwao

Meeting abstracts of the Physical Society of Japan 62 ( 2 ) 390 - 390 2007.8

非晶質相の構造の違いをいかに見分けるか～シミュレーションからのアプローチ～

低温科学 64 13 2005

Water; Dynamics and Reactions.

Saito Shinji, Matsumoto Masakazu, Ohmine Iwao

Netsu Sokutei 31 ( 1 ) 6 - 13 2004

Language：Japanese Publisher：Japan Society of Calorimetry and Thermal Analysis

Various aspects of Water Dynamics are discussed; (1) Fluctuation and relaxation in hydrogen bond network rearrangement and their observation, (2) Mechanism of water freezing, and (3) Proton transfer in liquid water and ice.<br>Liquid water yields the intermittently collective motions accompanied with large fluctuations. Various relaxation processes associated with these collective motions in liquid water yield so-called 1/f spectra. We present the result of our analysis on a method, called 2-dimensional Raman/IR spectroscopy. This method will be able to deal with the mechanism of these intermittent collective motions.<br>Upon cooling, water freezes into ice. This process is a most familiar phase-transition, occurring in many places in nature, but has never been successfully simulated by a computer simulation. We report the first successful simulation for the pure water freezing process, which gives a molecular level picture of, particularly, how an initial nucleus is created and grows.<br>The proton transfer is a most basic reaction in chemistry and biochemistry. It is found that the mechanism of the proton transport in ice is completely different from that in liquid water. The repulsion from fourth coordinated water makes the facile proton transfer possible. The long range solvation is essential for the smooth transport of the proton in ice.

DOI： 10.11311/jscta1974.31.6

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Molecular Dynamics Simulation of Nucleation of Ice

Masakazu Matsumoto

Meeting abstracts of the Physical Society of Japan 58 ( 1 ) 355 - 355 2003.3