Condensed Molecular Materials Laboratory
Chief Scientist
Reizo KATO (D.Sci.)
Synthesis, characterization and design of molecular materials, especially molecular metals ( superconductors ), have been undertaken. Molecular conductors exhibit a variety of physical properties which can be systematically understood on the basis of "simple" and "clear" electronic structures. From a chemical point of view, the most fascinating character of the molecular conductor is its "designability", that is, we can finely control solid state properties with chemical modifications of the molecule. The newly synthesized materials are characterized by the X-ray diffraction method and physical measurements (electrical conductivity, etc.). The electronic structure is investigated by the simple band structure calculation. All these results are devoted to the design of new molecular materials.
- Construction and Electronic Properties of New Supramolecular Assemblies
- Physical and Chemical Control of the Electronic State of the Molecular Conductor
- Interrelation between the Crystal Structure and the Electrical Property
- August 13, 2009
- Mysterious electronic behavior detected in organic Mott insulator
- April 30, 2009
- First ever development of a two-dimensional zero-gap electric conductor from multi-layered single crystals of organic conductor alpha-(BEDT-TTF)2I3
- June 23, 2008
- Development of organic Mott FET with field effect transition comparable to that of polycrystal silicon, to produce a new functional field effect transistor from novel materials
- August 13,2010
- A lack of order
A comparative study of two closely related organic insulators highlights the unusual properties of quantum spin liquids
- November 14, 2008
- Manipulating Electrons with Molecules
- Yamamoto, T., Nakazawa, Y., Tamura, M., Nakao, A., Ikemoto, Y., Moriwaki, T., Fukaya, A., Kato, R., and Yakushi, K.:
"Intradimer Charge Disproportionation in Triclinic-EtMe3P[Pd(dmit)2]2 (dmit: 1,3-Dithiole-2-thione-4,5-dithiolate)"
J. Phys. Soc. Jpn., 80, 123709/1-4 (2011). - Kawasugi, Y., Yamamoto, H. M., Tajima, N., Fukunaga, T., Tsukagoshi, K., and Kato, R.:
"Electric-Field-Induced Mott Transition in an Organic Molecular Crystal"
Phys. Rev. B, 84, 125129/1-9 (2011). - Yamamoto, T., Nakazawa, Y., Tamura, M., Fukunaga, T., Kato, R., and Yakushi, K.:
"Vibrational Spectra of [Pd(dmit)2] Dimer (dmit = 1,3-dithiole-2-thione-4,5-dithiolate): Methodology for Examining Charge, Inter-Molecular Interactions, and Orbital"
J. Phys. Soc. Jpn., 80, 074717/1-16 (2011). - Hazama, K., Uji, S., Takahide, Y., Kimata, M., Satsukawa, H., Harada, A., Terashima, T., Kosaka, Y., Yamamoto, H. M., and Kato, R.:
"Fermi Surface and Interlayer Transport in the Two-Dimensional Magnetic Organic Conductor (Me-3,5-DIP)[Ni(dmit)2]2"
Phys. Rev. B, 83, 165129/1-9 (2011). - Yamashita, S., Yamamoto, T., Nakazawa, Y., Tamura, M., and Kato, R.:
"Gapless Spin Liquid of an Organic Triangular Compound Evidenced by Thermodynamic Measurements"
Nature Communications, 2, 275/1-6 (2011). - Yamashita, M., Nakata, N., Senshu, Y., Nagata, M., Yamamoto, H. M., Kato, R., Shibauchi, T., and Matsuda, Y.:
"Highly Mobile Gapless Excitations in a Two-Dimensional Candidate Quantum Spin Liquid"
Science, 328(5983), 1246-1248 (2010). - Kawasugi, Y., Yamamoto, H. M., Tajima, N., Fukunaga, T., Tsukagoshi, K., and Kato, R.:
"Field-Induced Carrier Delocalization in the Strain-Induced Mott Insulating state of an Organic Superconductor"
Phys. Rev. Lett., 103(11), 116801/1-4 (2009). - Tajima, N., Sugawara, S., Kato, R., Nishio, Y., and Kajita, K.:
"Effect of the Zero-Mode Landau Level on Interlayer Magnetoresistance in Multilayer Massless Dirac Fermion Systems"
Phys. Rev. Lett., 102(17), 176403/1-4 (2009). - Kawasugi, Y., Yamamoto, H. M., Hosoda, M., Tajima, N., Fukunaga, T., Tsukagoshi, K., and Kato, R.:
"Strain-Induced Superconductor/Insulator Transition and Field Effect in a Thin Single Crystal of Molecular Conductor"
Appl. Phys. Lett., 92, 243508/1-3 (2008). - Yamamoto, H. M., Kosaka, Y., Maeda, R., Yamaura, J., Nakao, A., Nakamura, T., and Kato, R.:
"Supramolecular Insulating Networks Sheathing Conducting Nanowires Based on Organic Radical Cations"
ACS Nano, 2(1), 143-155 (2008).
Principal Investigator
- Reizo KATO
- Chief Scientist
Staff Scientist
- Yugo OSHIMA
- Senior Research Scientist
- Minoru YAMASHITA
- Research Scientist
- Hengbo CUI
- ASI Research Scientist
Postdoctoral Fellow
- Mitsushiro NOMURA
- Special Postdoctoral Researcher
- Tetsuro KUSAMOTO
- Special Postdoctoral Researcher
- Masayuki SUDA
- Special Postdoctoral Researcher
- Hiroki OTAKI
- Special Postdoctoral Researcher
- Majed ABDEL JAWAD
- Foreign Postdoctoral Researcher
- Naoko TAKUBO
- Contract Researcher
- Youichi NAOE
- Postdoctoral Researcher
- Kohei UEDA
- Postdoctoral Researcher
- Takao TSUMURAYA
- Postdoctoral Researcher
Visiting Research Staff
- Hiroshi YAMAMOTO
- Senior Visiting Scientist