Journal of the Japanese Association for Crystal Growth

Online ISSN : 2187-8366
Print ISSN : 0385-6275
ISSN-L : 0385-6275

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Volume 36, Issue 2

Displaying 1-23 of 23 articles from this issue

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[title in Japanese]

Article type: Cover
2009 Volume 36 Issue 2 Pages Cover1-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_Cover1

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[title in Japanese]

Article type: Index
2009 Volume 36 Issue 2 Pages Toc1-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_Toc1

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[title in Japanese]

Article type: Index
2009 Volume 36 Issue 2 Pages Toc2-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_Toc2

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[title in Japanese]

Article type: Index
2009 Volume 36 Issue 2 Pages Toc3-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_Toc3

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[title in Japanese]

Article type: Index
2009 Volume 36 Issue 2 Pages Toc4-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_Toc4

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Crystallization and Structure Formation of Nano-Submicron Particles(Preface for special issue)

Masahide Sato, Yoshihisa Suzuki

Article type: Article
2009 Volume 36 Issue 2 Pages 75-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_75

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Crystallization of Charged Colloids(<Special Issue>Crystallization and Structure Formation of Nano-Submicron Particles)

Junpei Yamanaka, Akiko Toyotama

Article type: Article
2009 Volume 36 Issue 2 Pages 76-83
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_76

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Submicron-sized charged colloidal particles are self-assembled into ordered crystalline structures in polar liquid medium, due to a strong electrostatic interparticle interaction. The colloidal systems provide models to study phase behavior of the atomic and molecular systems. Furthermore, the colloidal crystals have received considerable attention as photonic materials, since their Bragg wavelengths usually lie in the visible light regime. In the present review, we report the crystallization mechanism of the charged colloids as well as the controlled crystallization methods to grow large single crystals. In particular, we describe the unidirectional crystal growths of the colloidal silica dispersions under gradients of pH and temperature. We also report fabrications of the self-standing photonic materials obtained by immobilizing the colloidal crystals in polymer gel matrix.

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Fabrication of Single-Like Colloidal Crystals by Shear Effect(<Special Issue>Crystallization and Structure Formation of Nano-Submicron Particles)

Tsutomu Sawada

Article type: Article
2009 Volume 36 Issue 2 Pages 84-90
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_84

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This report summarizes our previous works about a method to produce a large domain with single-crystalline-like nature for loose-packed colloidal crystal system. A poly-crystalline suspension can be realigned to the single domain in a flat capillary according to a unique property that the crystalline structure of the suspension can be changed by flow-induced shear field. The resultant crystalline texture is characterized with several optical techniques including confocal laser microscopy, transmission spectroscopy, and laser diffraction. The flow-induced effect is quantitatively discussed in comparison with fluid dynamics simulation results.

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Anomalous Phenomena of Charged Colloidal Dispersions(<Special Issue>Crystallization and Structure Formation of Nano-Submicron Particles)

Kensaku Ito

Article type: Article
2009 Volume 36 Issue 2 Pages 91-95
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_91

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Charged colloidal particles dispersed in water are known to form colloidal crystals under the conditions of high particle concentration, high surface charges, and low ionic strength. However, at the same ionic strength but lower particle concentrations, unexpected phenomena were observed. At the particle concentration of about 1/100th of the lowest at which particles could be able to form homogeneous colloidal crystals throughout dispersions, like-charged particles gather locally leaving huge voids. Near the lower limit particle concentration, whole volume of dispersion was filled with colloidal liquid structures for several tens of hours and it turned into crystal structure of centimeter-sized in an hour. These unexpected phenomena are described in this report.

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Regulation of Interparticle Interaction of Metallic Nanoparticles and Formation of Particle Super Lattice(<Special Issue>Crystallization and Structure Formation of Nano-Submicron Particles)

Keisaku Kimura

Article type: Article
2009 Volume 36 Issue 2 Pages 96-105
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_96

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Regulation of lyophilicity and lyophobicity of particle surface is very important to control the interparticle interaction in aqueous solution. Through this interaction, we can precisely tune the formation of regular array, superlattice, made of nanoparticles to create new materials. We demonstrate the way of regulation of interparticle interaction, which is effective for the formation of high quality nanoparticle crystal at the gas/water interface. The reasons of creating a high quality superlattice at the gas/water interface are precisely explained. Some concrete examples of high quality superlattices are introduced and analyzed.

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Brownian Dynamics Simulation of 3D Colloidal Crystal Formation Induced by Desalination(<Special Issue>Crystallization and Structure Formation of Nano-Submicron Particles)

Minoru Miyahara, Satoshi Watanabe

Article type: Article
2009 Volume 36 Issue 2 Pages 106-111
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_106

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We conducted Brownian dynamics simulations of the order formation of electrostatically stabilized colloidal particles induced by desalination of the suspension. We obtained the following results: (1) A three dimensional colloidal crystal is found to form only if a controlling factor, the "average force" acting between particles, exceeds a limiting value that is common to various ionic strengths; (2) A general concept extended from the Alder transition is proposed to give a comprehensive understanding of the characteristics of the "average force," with which the controlling factor and resultant ordered structure can be predicted a priori for any combination of temperature, ionic strength, and particle size, as long as the interaction potential between particles is known.

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Defect Behavior in Hard-Sphere Crystals under Gravity and Colloidal Epitaxy(<Special Issue>Crystallization and Structure Formation of Nano-Submicron Particles)

Atsushi Mori

Article type: Article
2009 Volume 36 Issue 2 Pages 112-119
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_112

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A review is given on the studies of the defect disappearance mechanism in colloidal crystals using a hard-sphere (HS) model. In the case of the fcc (001) stacking, which occurs by the stress from the small periodic-boundary simulation box, a glide mechanism of the Shockley partial dislocation for the disappearance of intrinsic stacking fault has been observed in Monte Carlo (MC) simulations. Driving forces for shrinking of an intrinsic stacking fault caused by the elastic field from the Shockley partial and due to the gravity have been calculated. To rule out the artifact that driving force for the fee (001) stacking is the stress from the small simulation box, MC simulations of the growth of HSs on the a square pattern have been performed. The gravity at which the defect disappearance occurs has been found to be smaller than that for the flat bottom wall case.

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Polydispersity Effects on Solid-Fluid Phase Transition of Hard-Particle Systems(<Special Issue>Crystallization and Structure Formation of Nano-Submicron Particles)

Hiroshi Watanabe, Tomoaki Nogawa, Nobuyasu Ito

Article type: Article
2009 Volume 36 Issue 2 Pages 120-128
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_120

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Dispersity effects on melting transition are studied in two-and three-dimensional hard-particle systems. As dispersity is increased, the melting density becomes higher and the melting transition vanishes at a critical dispersity. Melting points and a critical exponent are determined from non-equilibrium relaxation behavior of the system which time-evolution is performed by molecular dynamics simulations.

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New Materials Design Technology for the Next Generation of Performed Components (NMDT-NGPC2009)

Hideo Kimura

Article type: Article
2009 Volume 36 Issue 2 Pages 129-130
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_129

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1st Conference on Growth of Nitride Semiconductors-Future Prospect of Nitride Semiconductors(News of JACG)

Hiroshi Fujioka

Article type: Article
2009 Volume 36 Issue 2 Pages 131-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_131

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[title in Japanese]

Article type: Appendix
2009 Volume 36 Issue 2 Pages 132-141
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_132

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[title in Japanese]

Article type: Appendix
2009 Volume 36 Issue 2 Pages 141-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_141

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[title in Japanese]

Article type: Appendix
2009 Volume 36 Issue 2 Pages 142-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_142_1

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[title in Japanese]

Article type: Appendix
2009 Volume 36 Issue 2 Pages 142-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_142_2

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[title in Japanese]

Article type: Appendix
2009 Volume 36 Issue 2 Pages 142-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_142_3

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[title in Japanese]

Article type: Appendix
2009 Volume 36 Issue 2 Pages 143-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_143

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[title in Japanese]

Article type: Appendix
2009 Volume 36 Issue 2 Pages 144-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_144

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[title in Japanese]

Article type: Appendix
2009 Volume 36 Issue 2 Pages 145-
Published: 2009
Released on J-STAGE: May 31, 2017

DOIhttps://doi.org/10.19009/jjacg.36.2_145

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