Kenichiro Koga

Ph.D, Professor

  • 3119 Citations
  • 24 h-Index
19942019

Research output per year

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Research Output

  • 3119 Citations
  • 24 h-Index
  • 84 Article
  • 2 Editorial
  • 1 Comment/debate
  • 1 Review article

Ab initio studies of quasi-one-dimensional pentagon and hexagon ice nanotubes

Bai, J., Su, C. R., Parra, R. D., Zeng, X. C., Tanaka, H., Koga, K. & Li, J. M., Mar 1 2003, In : Journal of Chemical Physics. 118, 9, p. 3913-3916 4 p.

Research output: Contribution to journalArticle

43 Citations (Scopus)

A plastic phase of water from computer simulation

Takii, Y., Koga, K. & Tanaka, H., Jun 6 2008, In : Journal of Chemical Physics. 128, 20, 204501.

Research output: Contribution to journalArticle

35 Citations (Scopus)

Application of reference-modified density functional theory: Temperature and pressure dependences of solvation free energy

Sumi, T., Maruyama, Y., Mitsutake, A., Mochizuki, K. & Koga, K., Feb 5 2018, In : Journal of Computational Chemistry. 39, 4, p. 202-217 16 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

A reference-modified density functional theory: An application to solvation free-energy calculations for a Lennard-Jones solution

Sumi, T., Maruyama, Y., Mitsutake, A. & Koga, K., Jun 14 2016, In : Journal of Chemical Physics. 144, 22, 224104.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Augmented stability of hydrogen clathrate hydrates by weakly polar molecules

Nakayama, T., Koga, K. & Tanaka, H., Dec 21 2009, In : Journal of Chemical Physics. 131, 21, 214506.

Research output: Contribution to journalArticle

24 Citations (Scopus)

Can thin disk-like ice clusters be more stable than compact droplet-like ice clusters?

Tanaka, H., Yamamoto, R., Koga, K. & Zeng, X. C., May 7 1999, In : Chemical Physics Letters. 304, 5-6, p. 378-384 7 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Close-packed structures and phase diagram of soft spheres in cylindrical pores

Koga, K. & Tanaka, H., Apr 7 2006, In : Journal of Chemical Physics. 124, 13, 131103.

Research output: Contribution to journalArticle

29 Citations (Scopus)

Comment on "The hydrophobic effect" by B. Widom, P. Bhimalapuram and K. Koga, Phys. Chem. Chem. Phys., 2003, 5, 3085

Graziano, G., Widom, B., Bhimalapuram, P. & Koga, K., Sep 21 2004, In : Physical Chemistry Chemical Physics. 6, 18, p. 4527-4530 4 p.

Research output: Contribution to journalComment/debate

2 Citations (Scopus)

Computer simulation of bilayer ice: Structures and thermodynamics

Slovák, J., Tanaka, H., Koga, K. & Zeng, X. C., Mar 1 2003, In : Physica A: Statistical Mechanics and its Applications. 319, p. 163-174 12 p.

Research output: Contribution to journalArticle

19 Citations (Scopus)

Computer simulation of water-ice transition in hydrophobic nanopores

Slovák, J., Tanaka, H., Koga, K. & Zeng, X. C., Mar 15 2001, In : Physica A: Statistical Mechanics and its Applications. 292, 1-4, p. 87-101 15 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
31 Citations (Scopus)

Cononsolvency behavior of hydrophobes in water + methanol mixtures

Mochizuki, K. & Koga, K., 2016, In : Physical Chemistry Chemical Physics. 18, 24, p. 16188-16195 8 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Correlation between hydrophobic attraction and the free energy of hydrophobic hydration

Koga, K., Bhimalapuram, P. & Widom, B., Dec 20 2002, In : Molecular Physics. 100, 24, p. 3795-3801 7 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Correlation functions in decorated lattice models

Ispolatov, I., Koga, K. & Widom, B., Mar 1 2001, In : Physica A: Statistical Mechanics and its Applications. 291, 1-4, p. 49-59 11 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Deriving Second Osmotic Virial Coefficients from Equations of State and from Experiment

Koga, K., Holten, V. & Widom, B., Sep 17 2015, In : Journal of Physical Chemistry B. 119, 42, p. 13391-13397 7 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Diffusivity of liquid argon in carbon nanotubes

Akiyoshi, H. & Koga, K., Sep 2012, In : journal of the physical society of japan. 81, SUPPL. A, SA022.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Discovery of two-dimensional ice - Peculiar structure predicted by computer simulation

Kouga, K., 1999, In : Chemistry. 54, p. 41-46 6 p.

Research output: Contribution to journalArticle

Driving forces for the pressure-induced aggregation of poly(N-isopropylacrylamide) in water

Mochizuki, K., Sumi, T. & Koga, K., 2016, In : Physical Chemistry Chemical Physics. 18, 6, p. 4697-4703 7 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)

Effects of confinement on the phase behavior of supercooled water

Koga, K., Zeng, X. C. & Tanaka, H., Mar 20 1998, In : Chemical Physics Letters. 285, 3-4, p. 278-283 6 p.

Research output: Contribution to journalArticle

30 Citations (Scopus)

Efficiency at maximum power for an isothermal chemical engine with particle exchange at varying chemical potential

Koning, J., Koga, K. & Indekeu, J. O., Feb 1 2017, In : European Physical Journal: Special Topics. 226, 3, p. 427-431 5 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Electrostatic field-exposed water in nanotube at constant axial pressure

He, Y., Sun, G., Koga, K. & Xu, L., Oct 16 2014, In : Scientific reports. 4, 6596.

Research output: Contribution to journalArticle

20 Citations (Scopus)

First- and second-order wetting transitions at liquid-vapor interfaces

Koga, K., Indekeu, J. O. & Widom, B., Aug 9 2010, In : Faraday Discussions. 146, p. 217-222 6 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

First-order transition in confined water between high-density liquid and low-density amorphous phases

Koga, K., Tanaka, H. & Zeng, X. C., Nov 30 2000, In : Nature. 408, 6812, p. 564-567 4 p.

Research output: Contribution to journalArticle

252 Citations (Scopus)

Formation of ice nanotube with hydrophobic guests inside carbon nanotube

Tanaka, H. & Koga, K., Sep 1 2005, In : Journal of Chemical Physics. 123, 9, 094706.

Research output: Contribution to journalArticle

28 Citations (Scopus)

Formation of ordered ice nanotubes inside carbon nanotubes

Koga, K., Gao, G. T., Tanaka, H. & Zeng, X. C., Aug 23 2001, In : Nature. 412, 6849, p. 802-805 4 p.

Research output: Contribution to journalArticle

836 Citations (Scopus)

Formation of quasi two-dimensional bilayer ice in hydrophobic slits: A possible candidate for ice XIII?

Bai, J., Zeng, X. C., Koga, K. & Tanaka, H., Aug 1 2003, In : Molecular Simulation. 29, 10-11, p. 619-626 8 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Freezing in one-dimensional liquids

Koga, K., May 1 2003, In : Journal of Chemical Physics. 118, 17, p. 7973-7980 8 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)

Freezing of confined water: A bilayer ice phase in hydrophobic nanopores

Kenichiro, K., Zeng, X. C. & Hideki, T., Jan 1 1997, In : Physical Review Letters. 79, 26, p. 5262-5265 4 p.

Research output: Contribution to journalArticle

179 Citations (Scopus)

How does water freeze inside carbon nanotubes?

Koga, K., Gao, G. T., Tanaka, H. & Zeng, X. C., Dec 1 2002, In : Physica A: Statistical Mechanics and its Applications. 314, 1-4, p. 462-469 8 p.

Research output: Contribution to journalArticle

75 Citations (Scopus)

How much does the core structure of a three-phase contact line contribute to the line tension near a wetting transition?

Indekeu, J. O., Koga, K. & Widom, B., May 18 2011, In : Journal of Physics Condensed Matter. 23, 19, 194101.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Hydrophobic effect in the pressure-temperature plane

Koga, K., Oct 15 2004, In : Journal of Chemical Physics. 121, 15, p. 7304-7312 9 p.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Hydrophobicity in Lennard-Jones solutions

Ishizaki, M., Tanaka, H. & Koga, K., Feb 14 2011, In : Physical Chemistry Chemical Physics. 13, 6, p. 2328-2334 7 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Hydrophobicity Varying with Temperature, Pressure, and Salt Concentration

Koga, K. & Yamamoto, N., Apr 5 2018, In : Journal of Physical Chemistry B. 122, 13, p. 3655-3665 11 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Hydrophobic polymer chain in water that undergoes a coil-to-globule transition near room temperature

Hatano, I., Mochizuki, K., Sumi, T. & Koga, K., Dec 1 2016, In : Journal of Physical Chemistry B. 120, 47, p. 12127-12134 8 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Ice nanotube: what does the unit cell look like?

Koga, K., Parra, R. D., Tanaka, H. & Zeng, X. C., Sep 22 2000, In : Journal of Chemical Physics. 113, 12, p. 5037-5040 4 p.

Research output: Contribution to journalArticle

72 Citations (Scopus)

Imaging point defects in a liquid environment: a model afm study

Koga, K. & Zeng, X. C., Jan 1 1999, In : Physical Review B - Condensed Matter and Materials Physics. 60, 20, p. 14328-14333 6 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Inclusion of neon inside ice Ic and its influence to the ice structure

Hakim, L., Matsumoto, M., Koga, K. & Tanaka, H., Sep 2012, In : journal of the physical society of japan. 81, SUPPL. A, SA018.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Infinite-order transitions in density-functional models of wetting

Koga, K., Indekeu, J. O. & Widom, B., Jan 19 2010, In : Physical Review Letters. 104, 3, 036101.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Influence of co-non-solvency on hydrophobic molecules driven by excluded volume effect

Mochizuki, K., Sumi, T. & Koga, K., 2017, In : Physical Chemistry Chemical Physics. 19, 35, p. 23915-23918 4 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Large thermal expansivity of clathrate hydrates

Tanaka, H., Tamai, Y. & Koga, K., Aug 14 1997, In : Journal of Physical Chemistry B. 101, 33, p. 6560-6565 6 p.

Research output: Contribution to journalArticle

26 Citations (Scopus)

Line adsorption in a mean-field density-functional model

Koga, K. & Widom, B., Nov 1 2006, In : Molecular Physics. 104, 22-24, p. 3469-3477 9 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Line and boundary tensions on approach to the wetting transition

Koga, K. & Widom, B., Aug 20 2007, In : Journal of Chemical Physics. 127, 6, 064704.

Research output: Contribution to journalArticle

12 Citations (Scopus)
9 Citations (Scopus)

Local solubility of nonpolar molecules in the liquid-vapor interfaces of water and simple liquids

Abe, K. & Koga, K., Dec 2014, In : Journal of Molecular Liquids. 200, PA, p. 7-11 5 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Mean-Field Approximation to the Hydrophobic Hydration in the Liquid-Vapor Interface of Water

Abe, K., Sumi, T. & Koga, K., Mar 3 2016, In : Journal of Physical Chemistry B. 120, 8, p. 2012-2019 8 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Mean-field density-functional model of a second-order wetting transition

Koga, K. & Widom, B., Mar 28 2008, In : Journal of Chemical Physics. 128, 11, 114716.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Model of freezing behavior of liquid monolayers adsorbed in cylindrical pores

Abe, K. & Koga, K., Sep 2012, In : journal of the physical society of japan. 81, SUPPL. A, SA021.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

Note on the calculation of the second osmotic virial coefficient in stable and metastable liquid states

Widom, B. & Koga, K., Jan 31 2013, In : Journal of Physical Chemistry B. 117, 4, p. 1151-1154 4 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Novel neon-hydrate of cubic ice structure

Hakim, L., Koga, K. & Tanaka, H., May 1 2010, In : Physica A: Statistical Mechanics and its Applications. 389, 9, p. 1834-1838 5 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)