Phone : +81 774 38 3110
Advanced Solid State Chemistry Laboratory
1987 - 2003 Principal Researcher, Fundamental Research Laboratories, NEC Corporation
2003 - present Professor, Institute for Chemical Research, Kyoto University
2013 - present International Organizing Committee of Workshop on Oxide Electronics (WOE)
2013 - present Editorial Board Member of Scientific Reports, Nature Publishing Group
2014 - present Advisory Board of Journal of Materials Chemistry A, Royal Society of Chemistry
1994 15th Honda Research Award
2000 Best Poster Award, Materials Research Society (MRS) 2000 Fall meeting, USA
2001 Research Award, Japan Society of Powder and Powder Metallurgy
2007 Thomson Reuters Scientific Research Front Award 2007
2013 The Chemical Society of Japan Award for Creative Work
2014 Research Award, Japan Society of Powder and Powder Metallurgy
Scientific interests of our research group concern materials science and solid-state chemistry of transition-metal oxides, including ferroelectrics, ferromagnets, conductors, batteries, etc. We focus on the fundamental chemistry and physics of these “functional oxides” and the search for new materials with new functionalities. The material synthesis activities include high-pressure synthesis, atomic-level controlled epitaxial thin-film growth, and topochemical oxidation/reduction modifications of the compounds, in addition to ordinary solid-state reaction synthesis. We are interested in determining crystal and magnetic structures and measuring properties of magnetism and electron transport, and is interested in control of the materials structure-property relationships.
Our recent research focuses on new compounds containing unusually high-valence cations such as Fe4+. We found the new A-site ordered perovskite oxide LaCu3Fe4O12 showing temperature-induced intersite charge transfer, which also induces large “negative thermal expansion” (Nature 2009), and the quadruple perovskite CaCu3Fe2Re2O12 with spin-polarized conduction carriers (Nature Comms. 2014).
We have been involving MaMaSELF since 2008 and have accepted more than 10 internship students.
Selected recent publications
- D. Kan, R. Aso, R. Sato, M. Haruta, H. Kurata, and Y. Shimakawa, “Tuning magnetic anisotropy by interfacially engineering the oxygen coordination environment in a transition metal oxide”, Nature Materials, 15, 432-437 (2016).
- W-T Chen, M. Mizumaki, H. Seki, M. S. Senn, T. Saito, D. Kan, J. P. Attfield, and Y. Shimakawa, “A half-metallic A- and B-site-ordered quadruple perovskite oxide CaCu3Fe2Re2O12 with large magnetization and a high transition temperature”, Nature Comm. 5, 3909/1-7 (2014).
- Y. Shimakawa and T. Saito (Invited review article), “A-site magnetism in A-site-ordered perovskite-structure oxides”, Physica Status Solidi B 249, 423-434 (2012). *Chosen to be “Best of pss 2013”
- S. Inoue, M. Kawai, N. Ichikawa, H. Kageyama, W. Paulus, and Y. Shimakawa, “Anisotropic oxygen diffusion at low temperature in perovskite-structure iron oxides”, Nature Chem., 2, 213 (2010).
- Y.W. Long, N. Hayashi, T. Saito, M. Azuma, S. Muranaka, and Y. Shimakawa, “Temperature-induced A-B intersite charge transfer in an A-site-ordered LaCu3Mn4O12 perovskite”, Nature 458, 60-63 (2009).