清水　康弘　　Yasuhiro SHIMIZU

基礎科学特別研究員

2000年3月	京都大学　理学部　卒業
2002年3月	京都大学大学院　理学研究科化学専攻　修士課程修了 （有機物性化学研究室　齋藤 軍治　教授） 修士論文　「強相関電子系κ-(ET)2Cu2(CN)3、θ-(ET)2Cu2(CN)[N(CN)2]2の物性」
2005年3月	京都大学大学院　理学研究科化学専攻　博士課程修了 （有機物性化学研究室　齋藤 軍治　教授） 博士論文　" NMR Study of Spin Liquid, Mott Transition and Superconductivity in a Organic Mott Insulator with Triangular Lattice"

2005年4月	理化学研究所　加藤分子物性研究室　基礎科学特別研究員（加藤 礼三　主任）
2007年3月	当研究室卒業

Transport and NMR studies on strongly correlated electron systems

1. Y. Shimizu, H. Akimoto, H. Tsujii, A. Tajima, and R. Kato
   "Reentrant Mott transition from a Fermi liquid to a spin-gapped insulator in an organic spin-1/2 triangular-lattice antiferromagnet"
   J. Phys.: Condens. Matter 19(14), 145240/1-145240/5 (2007).
   
   
2. S. Ohira, Y. Shimizu, K. Kanoda, G. Saito,
   "Spin Liquid State in κ-(BEDT-TTF)₂Cu₂(CN)₃ Studied by Muon Spin Relaxation Method"
   Journal of Low Temperature Physics 142(3/4), 153-158 (2006).
   
   
3. T. Okuhata, T. Nagai, H. Taniguchi, K. Satoh, T. Itou, Y. Shimizu, K. Miyagawa, Y. Ishii, N. Tajima, and R. Kato
   "High-pressure study of a doped-type organic superconductor, κ-(BEDT-TTF)₄Hg_2.89Br₈"
   J. Low Temperature Physics, 142(3/4), 547-550 (2006).
   
   
4. I. Kezsmarki, Y. Shimizu, G. Mihaly, Y. Tokura, K. Kanoda, and G. Saito,
   "Depressed charge gap in the triangular-lattice Mott insulator κ-(ET)₂Cu₂(CN)₃"
   Physical Review B, 74, R201101 (2006).
   
   
5. Y. Shimizu, K. Miyagawa, K. Kanoda, M. Maesato, and G. Saito,
   "Emergence of inhomogeneous moments from spin liquid in the triangular-lattice Mott insulator κ-(ET)₂Cu₂(CN)₃"
   Physical Review B, 73, R140407 (2006).
   
   
6. Y. Shimizu, K. Miyagawa, K. Kanoda, M. Maesato, and G. Saito,
   "Inhomogeneous spin state in a spin liquid on a triangular lattice under a magnetic field"
   AIP Conference Proceedings, 850, 611 (2006).
   
   
7. Y. Shimizu, H. Kasahara, K. Kurosaki, K. Miyagawa, K. Kanoda, M. Maesato, and G. Saito,
   "Superconductivity emerging from spin-liquid Mott insulator in triangular lattice system"
   AIP Conference Proceedings, 850, 1087 (2006).
   
   
8. K. Kurosaki, Y. Shimizu, K. Miyagawa, K. Kanoda, and G. Saito,
   "Mott Transition from a Spin Liquid to a Fermi Liquid in the Spin-Frustrated Organic Conductor κ-(ET)₂Cu₂(CN)₃"
   Physical Review Letters, 95, 177001 (2005).
   
   
9. Y. Shimizu, K. Miyagawa, K. Kanoda, M. Maesato, and G. Saito,
   "Spin liquid in a spin-frustrated organic Mott insulator"
   Progress of Theoretical Physics Supplement, 159, 52-60 (2005).
   
   
10. Y. Shimizu, Y. Kurosaki, K. Miyagawa, K. Kanoda, M. Maesato, and G. Saito,
    "NMR study of spin liquid state and Mott transition in the spin-frustrated organic system, κ-(ET)₂Cu₂(CN)₃"
    Synthetic Metals, 152, 393-396 (2005).
    
    
11. M. Maesato, Y. Shimizu, T. Ishikawa, G. Saito, K. Miyagawa, and K. Kanoda,
    "Spin-liquid behavior and superconductivity in κ-(BEDT-TTF)₂X: The role of uniaxial strain"
    Journal de Physique IV (France), 114, 227-231 (2004).
    
    
12. Y. Shimizu, K. Miyagawa, K. Kanoda, M. Maesato, and G. Saito,
    "¹H NMR study of the organic Mott insulator with triangular lattice, κ-(ET)₂Cu₂(CN)₃"
    Journal de Physique IV (France), 114, 377-378 (2004).
    
    
13. Yamamoto, K. Yakushi, Y. Shimizu and G. Saito,
    "Infrared and Raman Study of the Charge-ordered State of θ-(ET)₂Cu₂CN[N(CN)₂]₂"
    Journal of the Physical Society of Japan, 73, 2326-2332 (2004).
    
    
14. G. Saito, H. Yamochi, M. Maesato, Y. Yoshida, A. Ota, and Y. Shimizu
    "Design of Organic (Super)Conductors and Study of Their Physical Properties"
    NATO ASI "Organic Conductors, Superconductors and Magnets : From Synthesis to Molecular Electronics",
    eds. L.Ouahab and E. Yagubskii, Kluwer Academic Pub., (2004), pp.19-44.
    
    
15. Y. Shimizu, K. Miyagawa, K. Kanoda, M. Maesato, and G. Saito,
    "Spin liquid state in an organic Mott insulator with a triangular lattice"
    Physical Review Letters, 91, 107001 (2003).
    
    
16. Y. Shimizu, M. Maesato, G. Saito, K. Miyagawa, and K. Kanoda,
    "Magnetic properties of a Mott insulator κ-(ET)₂Cu₂(CN)₃"
    Synthetic Metals, 137, 1247-1248 (2003).
    
    
17. Y. Shimizu, M. Maesato, G. Saito, O.O.Drozdova, and L. Ouahab,
    "Transport properties of a Mott insulator κ-(ET)₂Cu₂(CN)₃ under the uniaxial strain"
    Synthetic Metals, 133-134, 225-226 (2003).
    
    
18. M. Maesato, Y. Shimizu, T. Ishikawa, and G. Saito,
    "Anisotropy in the superconducting transition temperature of k-(ET)₂X"
    Synthetic Metals 137, 1243 (2003).
    
    
19. Y.Shimizu, M. Maesato, K. Ookubo, O. O.Drozdova, and G. Saito,
    "Superconductivity of a θ-type ET salt prepared using CuCN and Ph₄PN(CN)₂ as electrolyte"
    Molecular Crystals Liquid Crystals, 380, 135 (2002).
    
    
20. H. Yamochi, N. Sogoshi, Y. Shimizu, K. Matsumoto, and G. Saito,
    "The crystal and electronic structure analysis of (OMTTF)₂[Ni(tdas)₂], where OMTTF = octamethylenetetrathiafulvalene and tdas = 1,2,5-thiadiazole-3,4-dithiolate"
    Journal of Material Chemistry, 11, 2216 (2001).
    
    

Y. Shimizu, Y. Kurosaki, K. Miyagawa, K. Kanoda, M. Maesato, and G. Saito "NMR study of spin liquid state and Mott transition in the spin-frustrated organic system, κ-(ET)2Cu2(CN)3" International Conference of on the Science and Technology of Synthetic Metals (ICSM) 2004, Wollongong, Australia, June 28 - July 2, 2004.

清水康弘, 宮川和也, 鹿野田一司, 前里光彦, 齋藤軍治 「三角格子有機モット絶縁体におけるスピン液体」 固体物理 39, 545 (2004).