Research Objective
- A novel approach to the crystal growth by controlling the interface dynamics
Research Subjects
- Manipulation of the equilibrium phase relationship and solute partitioning at the solid-liquid interface by applying an external field.
- Manipulation of the interface-growth dynamics by external fields.
- Partition of oxygen in oxide crystal growth from the melt.
- Growth of chiral crystal under electro-magnetic fields.
- Fundamental understanding of crystal growth via colloid crystallization.
- Electronic state of metal and oxide melts.
Research Overview
Our laboratory, founded in 2003 as the crystal chemistry division of IMR, was based on the recognition that the development of almost every functional material and device in the area of information technology has been aided by the improvement of the associated single crystals. Our lab has been concerned with novel growth methods, mainly from a melt or a solution, focusing on the role of the local equilibrium and growth dynamics at the interface. The principle underlying our research is the use of the ‘freedom’ present at the interface. An increase in freedom allows a more variable growth process, while a decrease in freedom confines the growth conditions necessary to obtain a homogeneous crystal. Research areas associated with this principle are: (1) Growth under an applied electric field, (2) Growth of a new ferroelectric crystal that is both stoichiometric and congruent, and (3) Phase transition studies at a microscopic scale via colloidal crystallization.
Selected Publications
- Chapter 4: Stoichiometry of Oxide Crystals
Satoshi Uda, Handbook of Crystal Growth, Second Edition, Vol. I, Fundamentals: Thermodynamics and Kinetics, and Transport and Stability, T. Nishinaga, editor. Elsevier B.V., 175-214 (2014).
- Investigation of defect structure of impurity-doped lithium niobate by combining thermodynamic constraints with lattice constant variations
Chihiro Koyama, Jun Nozawa, Kensaku Maeda, Kozo Fujiwara, and Satoshi Uda, Journal of Applied Physics, 117, Art. No. 014102 (7pages) (2015).
- Effect of point defects on Curie temperature of lithium niobate
Chihiro Koyama, Jun Nozawa, Kozo Fujiwara, Satoshi Uda, Journal of the American Ceramic Society, 100, 1118-1124 (2017).
- Two-Dimensional Nucleation on the Terrace of Colloidal Crystals with Added Polymers
Jun Nozawa, Satoshi Uda, Suxia Guo, Sumeng Hu, Akiko Toyotama, Junpei Yamanaka, Junpei Okada, and Haruhiko Koizumi, Langmuir, 33, 3262-3269 (2017).
- Heterogeneous Nucleation of Colloidal Crystals on a Glass Substrate with Depletion Attraction
Suxia Guo, Jun Nozawa, Sumeng Hu, Haruhiko Koizumi, Junpei Okada, and Satoshi Uda, Langmuir, 33, 10543-10549 (2017).
- Step Kinetics Dependent on the Kink Generation Mechanism in Colloidal Crystal Growth
Jun Nozawa, Satoshi Uda, Suxia Guo, Akiko Toyotama, Junpei Yamanaka, Junpei Okada, and Haruhiko Koizumi, Crystal Growth & Design, 18, 2948-2955 (2018).
- Importance of Hydration State around Proteins Required to Grow High-Quality Protein Crystals
Haruhiko Koizumi, Satoshi Uda, Katsuo Tsukamoto, Kenichi Kojima, Masaru Tachibana, and Toru Ujihara, Crystal Growth & Design, 18, 4749-4755 (2018).
- Plasmonic Trapping-Induced Crystallization of Acetaminophen
Hiromasa Niinomi, Teruki Sugiyama, Satoshi Uda, Miho Tagawa, Toru Ujihara, Katsuhiko Miyamoto, and Takashige Omatsu, Crystal Growth & Design, 19, 529-537 (2019).
Contact Address
“Please delete “/” after “@” in a mail address.”
- Satoshi UDA
(TEL +81-22-215-2100, Email: uda@/imr.tohoku.ac.jp)
- Junpei OKADA
(TEL +81-22-215-2101, Email: junpei.t.okada@/imr.tohoku.ac.jp)
- Hiromasa NIINOMI
(TEL +81-22-215-2103, Email: h.niinomi@/imr.tohoku.ac.jp)
FAX: +81-22-215-2101
URL:http://www.uda-lab.imr.tohoku.ac.jp/