Fumitatsu IWASE
Postdoctoral Researcher		  






March 2008 Doctor of engineering, Department of applied physics school of engineering, University of Tokyo
Doctor thesis "NQR study of N-I transition in DMTTF-QBr4-nCln complexes"




April 2008 - March 2010 Postdoctoral Researcher, Institute for Molecular Science
April 2010 - March 2013 Temporary assistant professor, Okayama University
April 2013 - June 2015 Postdoctoral Researcher, Condensed Molecular Materials Laboratory, RIKEN




- Research of phase transitions and novel electronic phases in strongly electron-correlated organics
- NMR and transport measurements under pressure
- Novel superconductivity




  1. H. B. Cui, H. Kobayashi, S. Ishibashi, M. Sasa, F. Iwase, R. Kato, and A. Kobayashi
    A Single-Component Molecular Superconductor
    J. Am. Chem. Soc., 136(21), 7619-7622 (2014).    New!

  2. F. Iwase, K. Miyagawa, and K. Kanoda
    High-frequency nuclear quadrupole resonance apparatus for use in pressure cell
    Rev. Sci. Instrum. 83, 064704 (2012).

  3. F. Iwase, K. Sugiura, K. Furukawa, and T. Nakamura
    13C NMR study of the magnetic properties of the quasi-one-dimensional conductor, (TMTTF)2SbF6
    Phys. Rev. B 84, 115140 (2011).

  4. K. Furukawa, K. Sugiura, F. Iwase, and T. Nakamura
    Structural investigation of the spin-singlet phase in (TMTTF)2I
    Phys. Rev. B 83, 184419 (2011).

  5. F. Iwase, K. Sugiura, K. Furukawa, and T. Nakamura
    Ground states and the critical behavior in the quasi-one-dimensional complexes (TMTTF)2[(AsF6)x(SbF6)1-x]
    Phys. Rev. B 81, 2451261-2451266 (2010).

  6. F. Iwase, K. Furukawa and T. Nakamura
    13C NMR Investigation of Low-temperature States in One-dimensional Organic Cation Radical Salt, (TMTTF)2SbF6 under High Pressures
    J. Phys.: Conf. Series 215, 012063 (2010).

  7. F. Iwase, K. Miyagawa, K. Kanoda, S. Horiuchi, and Y. Tokura
    Charge-Lattice-Coupled Quantum Fluctuations in DMTTF-2,6-QBr2Cl2
    J. Phys. Soc. Jpn. 79, 043709 (2010).     Papers of Editors' Choice

  8. F. Iwase, K. Sugiura, K. Furukawa, and T. Nakamura
    Electronic Properties of a TMTTF Family Salt, (TMTTF)2TaF6: New Member Located on the Modified Generalized Phase-Diagram
    J. Phys. Soc. Jpn. 78, 104717-1 (2009).

  9. T. Nakamura, F. Iwase, H. Satsukawa, K. Furukawa and T. Takahashi,
    13C NMR Investigation of Re-entrant Antiferromagnetic States of (TMTTF)2SbF6
    J. Phys.: Conf. Series 150 042137 (2009).

  10. F. Iwase, K. Sugiura, K. Furukawa, and T. Nakamura
    13C NMR study of the chemical pressure effect in (TMTTF)2[(AsF6)x(SbF6)1-x] (x ~ 0.5)
    J. Phys.: Conf. Series 132, 012015 (2008).

  11. F. Iwase, K. Miyagawa, K. Kanoda, S. Horiuchi, and Y. Tokura
    NQR Study of the Neutral-Ionic Phase Transition and the Quantum Paraelectric State in Organic Charge-Transfer Complexes
    Solid State Sci. 10, 1752-1756 (2008).

  12. F. Iwase, K. Miyagawa, S. Fujiyama, K. Kanoda, S. Horiuchi, and Y. Tokura
    Neutral-Ionic Phase Transition in DMTTF-QCl4 Investigated by 35Cl NQR
    J. Phys. Soc. Jpn. 76, 073701 (2007).




  1. F. Iwase, G.-q. Zheng, Y. S. Hor, M. Kriener, K. Segawa, Z. Ren, Y. Ando
    77Se NMR Study of Possible Topological Superconductors CuxBi2Se3
    International conference on topological quantum phenomena, Nagoya, Japan, May 16-20, 2012

  2. F. Iwase, K. Sugiura, K. Furukawa, T. Nakamura
    Low-temperature states in quasi-one-dimensional charge transfer salt (TMTTF)2SbF6 studied by 13C NMR under hydrostatic high pressures
    American Physical Society, Pittsburgh, USA, March 16-20, 2009

  3. F. Iwase, F. Kagawa, K. Miyagawa, K. Kanoda, S. Horiuchi, Y. Tokura
    Pressure-induced NI transition in DMTTF-QBr4 observed by 79Br NQR
    The 2007 International Symposium on Crystalline Organic Metals, Superconductors and ferromagnets (ISCOM), Peniscola, Spain, Sep. 24-29, 2007

  4. F. Iwase, K. Miyagawa, S. Fujiyama, K. Kanoda, S. Horiuchi, Y. Tokura
    79Br NQR study of DMTTF-2,6-QBr2Cl2 around a neutral-ionic quantum critical point
    The International Conference on Science and Technology of Synthetic Metals (ICSM), Dublin, Ireland, July 2-7, 2006

  5. F. Iwase, K. Miyagawa, S. Fujiyama, K. Kanoda, S. Horiuchi, Y. Tokura
    NQR spectra and spin-lattice relaxation rates of DMTTF-QBr4, -QCl4, and -QBr2Cl2
    Sixth International Symposium on Crystalline Organic Metals, Superconductors, and ferromagnets (ISCOM), Key West, United States, Sep. 11-16, 2005

  6. F. Iwase, K. Miyagawa, S. Fujiyama, K. Kanoda, S. Horiuchi, Y. Tokura
    Charge Transfer and Symmetry-breaking in DMTTF-QCl4 investigated by 35Cl NQR
    International Symposium on Molecular Conductors (ISMC), Hayama, Japan, July 17-21, 2005


CMM Member