Quantum Order Research Group

Functions of materials are produced by the quantum order formed by electrons in the materials. The quantum order means spin, energy excited state and space distribution of electrons in a material. To study the order in nano-scale makes creations of new material functions possible. We are going to develop measurement methods and new way to use of SPring-8. Further than X-ray structural analysis by usual synchrotron radiation, we investigate electronic order and material structure functions. Quantum Order Research Group consists of Spin Order Research Team, Excitation Order Research Team and Spatial Order Research Team. We promote our research activities with Structural Materials Science Laboratory and Project Team of Wako institute.

Research Subjects

• Development of monitoring technology as nano-beam measurements, time-splitting measurements and ellipsometry
• Research of dynamics of gas molecule adsorption in porous metal complexes and expression mechanism of adsorbed molecular

Publications

1. *Sheu C., Shih C., Sugimoto K., Cheng B., Takata M., Wang Y.;
   "A long-lived photo-induced metastable state of linkage isomerization accompanied with a spin transition."
   Chem. Commun. 48 5715-5717 (2012).
2. *Maki S., Nishibori E., Terauchi I., Ishihara M., Aoyagi S., Sakata M., Takata M., Umemoto H., Inoue T., Shinohara H.;
   "A structural diagnostics diagram for metallofullerens encapsulating metal carbides and nitrides."
   J. Am. Chem. Soc. 135 918-923 (2012).
3. *Helle S., Mads Ry Vogel J., Jacob O., Yu-Sheng C., Guillaume C., Jean-Francois L., Kato K., Takata M., Bo B. I.;
   "Analysis of the Photomagnetic Properties of Cyano-Bridged Heterobimetallic Complexes by X-RayDiffraction."
   Inorg. Chem. 10974-10984 (2011).
   
4. *Kajita T., Kanzaki T., Suzuki T., Kim J. E., Kato K., Takata M., Katsufuji T.;
   "Opening of a charge gap with V trimerization in BaV10O15."
   Phys. Rev. B 81 060405 (2010).
   
5. *Takabayashi Y., Ganin A. Y., Jegli P., Aron D., Takano T., Iwasa Y., Ohishi., Takata M., Takeshita N., Prassides K., Rosseinsky M. J.;
   "The Disorder-Free Non-BCS Superconductor Cs3C60 Emerges from an Antiferromagnetic Insulator Parent State."
   Science 323 1585-1590 (2009).
   
6. *Nomura T., Inoue Y., Matsuishi S., Hirano M., Kim J. E., Kato K., Takata M., Hosono H.;
   "Comparison of crystal structures and the effects of Co substitution in a new member of the Fe-1111 superconductor family AeFeAsF (Ae=Ca and Sr): a possible candidate for a high-Tc superconductor."
   Supercond. Sci. Technol. 22 055016 (2009).
7. *Kato K., Takata M., Ishikawa T.;
   "High-Throughput System For Synchrotron X-ray Powderdiffractometry."
   Adv. X-ray Anal. 51 36-41 (2008).
   
8. *Moritomo Y., Nakada F., Kamioka H., Kim J. E., Takata M.;
   "Desorption-induced first-order phase transition in a cyano-bridged compound."
   Appl. Phys. Lett. 92 141907 (2008).
   
9. *Kato K., Moritomo Y., Tanaka H., Tokoro H., Ohkoshi S., Takata M.;
   "Extended Charge-Transfer State of RbMn[Fe(CN)6]"
   J. Phys. Soc. Jpn. 76 123602 (2007).
10. *Kato, K., Takata, M., Moritomo, Y., Nakamoto A., Kojima N.;
    "On-off optical switching of the magnetic and structural properties in a spin-crossover complex."
    Appl. Phys. Lett. 90 201902 (2007).

Organization