Annual Report of ASRC 2015

Organization of ASRC

Preface

Research Highlights

• Large-scale nuclear-structure calculation for constraining neutrino masses

  (Y. Iwata, N. Shimizu, T. Otsuka, Y. Utsuno, J. Menéndez, M. Honma, and T. Abe)

• Fungus activity promoted transformation of lanthanides during biooxidation of divalent manganese

  (Q. Yu, T. Ohnuki, K. Tanaka, N. Kozai, S. Yamasaki, F. Sakamoto, and Y. Tani)

• Charge symmetry breaking of a hypernucleus ⁴_ΛHe

  (K. Hosomi, H. Sako, K. Imai, S. Haseagawa, S. Sato, K. Tanida, H. Sugimura, Y. Ichikawa, and H. Ekawa)

• Reentrant superconductivity induced by strong magnetic field in uranium based heavy-fermion compound URhGe

  (Y. Tokunaga, H. Sakai, T. Hattori, S. Kambe, D.Aoki, H. Mayaffre, S. Krämer, M.-H. Julien, C. Berthier, M. Horvatić, and S. Araki)

• Spin hydrodynamic generation

  (M. Matsuo, S. Takahashi, M. Ono, K. Harii, H. Chudo, S. Okayasu, J. Ieda, S. Takahashi, S. Maekawa, and E. Saitoh)

• Interface structure between graphene and metal substrates revealed by positron diffraction

  (Y. Fukaya, S. Entani, S. Sakai, I. Mochizuki, K. Wada, T. Hyodo, and S. Shamoto)

Group Activities

• Research Group(R.G.) for Heavy Element Nuclear Science
• R.G. for Interfacial Reaction-field Chemistry
• R.G. for Hadron Nuclear Physics
• R.G. for Materials Physics for Heavy Element Systems
• R.G. for Spin-energy Transformation Science
• R.G. for Nanoscale Structure and Function of Advanced Materials

Annual Report of ASRC 2014

Organization of ASRC

Preface

Research Highlights

• Measurement of the First Ionization Potential of Lawrencium (Lr, Z=103) by a Surface Ionization Method

  (T. K. Sato, M. Asai, Y. Kaneya, K.Tsukada, A. Toyoshima, A. Osa, S. Ichikawa,Y. Nagame, T. Stora, A. Borschevsky, Ch. E. Düllmann, M. Schädel, J. V. Kratz, N. Trautmann)

• Recovery of Radioactive Cesium from Sewage Sludge Ashes —Paving the Way for Disposal of Sewage Sludge Ashes Containing Radioactive Cesium

  (N. Kozai, S. Suzuki, N. Aoyagi, F. Sakamoto, T. Ohnuki)

• Charge-to-Spin Conversion and Spin Diffusion in Bi/Ag Bilayers Observed by Spin-Polarized Positron Beam

  (H. J. Zhang, S. Yamamoto, B. Gu, H. Li, M. Maekawa, Y. Fukaya, and A. Kawasuso)

• A High Field ²⁹Si NMR Study of URu₂Si₂: A Novel Emergent Phase Out of the “Hidden-Order” State

  (H. Sakai, Y. Tokunaga, S. Kambe, R. R. Urbano, M.-T. Suzuki, P. L. Kuhns, A. P. Reyes, P. H. Tobash, F. Ronning, E. D. Bauer, and J. D. Thompson)

• Sign Change of the Spin Hall Effect Due to Electron Correlation in CuIr Alloys

  (Z. Xu, B. Gu, M. Mori, T. Ziman and S. Maekawa)

• Search for a K^-pp Bound State by Using the π⁺ + d → K⁺ +X Reaction

  (Y. Ichikawa, T. Nagae, H. Fujioka, H. Bhang, S. Bufalino, H. Ekawa, P. Evtoukhovitch, A. Feliciello, S. Hasegawa, S. Hayakawa, R. Honda, K. Hosomi, K. Imai, S. Ishimoto, C. Joo, S. Kanatsuki, R. Kiuchi, T. Koike, H. Kumawat, Y. Matsumoto, K. Miwa, M. Moritsu, M. Naruki, M. Niiyama, Y. Nozawa, R. Ota, A. Sakaguchi, H. Sako, V. Samoilov, S. Sato, K. Shirotori, H. Sugimura, S. Suzuki, T. Takahashi, T.N. Takahashi, H. Tamura, T. Tanaka, K. Tanida, A.O. Tokiyasu, Z. Tsamalaidze, B. Roy, M. Ukai, T.O. Yamamoto, and S. Yang)

Group Activities

• Research Group(R.G.) for Condensed Matter Theory
• R.G. for Molecular Spintronics
• R.G. for Mechanical Control of Materials and Spin Systems
• R.G. for Involving Heavy Nuclei
• R.G. for Actinide Materials Science
• R.G. for Superheavy Elements
• R.G. for Condensed Matter Physics of Heavy Element Systems
• R.G. for Nuclear and Hadron Physics
• R.G. for Bioactinides Chemistry
• R.G. for Radiation and Biomolecular Science
• R.G. for Spin-Polarized Positron Beam

Annual Report of ASRC 2013

Organization of ASRC

Preface

Research Highlights

• Mechanical generation of spin current by spin-rotation coupling

  (M. Matsuo, J. Ieda, K. Harii, E. Saitoh, and S. Maekawa)

• Search for⁶ΛH hypernucleus by the (π^-, K⁺) reaction at pπ-=1.2GeV/c

  (H. Sugimura for J-PARC E10 Collaboration)

• UV-A damage to DNA causes genetic instability of non-irradiated normal chromosomes

  (Urushibara, S. Kodama and A. Yokoya)

• Microscopic evidence of hydrogen-induced insulation degradation in BaTiO₃ revealed by muon spin spectroscopy

  (T.U.Ito, W.Higemoto, T.D.Matsuda, A.Koda and K.Shimomura)

• Spin polarization at the graphene-ferromagnetic metal interface

  (S. Entani, Y. Yamauchi, X. Sun, M. Kurahashi, M. Ohtomo, Y. Matsumoto, H.Naramoto and S. Sakai)

• Microscopic characterization of “nematic” precursor state of unconventional superconductivity in URu₂Si₂

  (S. Kambe, Y. Tokunaga, H. Sakai, T. D. Matsuda, Y. Haga, Z. Fisk and R.E. Walstedt)

Group Activities

• Research Group (R.G.) for Condensed Matter Theory
• R.G. for Molecular Spintronics
• R.G. for Mechanical Control of Materials and Spin Systems
• R.G. for Reactions Involving Heavy Nuclei
• R.G. for Superheavy Elements
• R.G. for Actinide Materials Science
• R.G. for Condensed Matter Physiscs of Heavy Element Systems
• R.G. for Hadron Physics
• R.G. for Bioactinide
• R.G. for Radiation and Biomolecular Science
• R.G. for Spin-Polarized Positron Beam

Annual Report of ASRC 2012

Preface

• Message from the Director

  Director General : Sadamichi Maekawa

Highlights

• Power spintronics- Stabilization of spinmotive force and invention of a magnetic power inverter
• First successful ionization of lawrencium by surface ionization process
• Coupling between electronic and lattice symmetry in unconventional superconductor URu₂Si₂
• Chemical species of radiocesium in the contaminated soil, and contribution of non-mica minerals to tight association
• A novel mechanism of DNA damage induction by K-shell resonance photoexcitations at nitrogen and oxygen as observed using an electron paramagnetic resonance spectrometer in SPring-8
• Development of spin-polarized slow positron beam using a new ⁶⁸Ge-⁶⁸Ga/GaN positron source and its application for positron annihilation spectroscopy

Group Activities

※R.G. = Research Group

Advanced Materials Research

• R.G. for Condensed Matter Theory

  Group Leader:Michiyasu Mori

• R.G. for Molecular Spintronics

  Group Leader:Seiji Sakai

• R.G. for Mechanical Control of Materials Spin Systems

  Group Leader:Eiji Satoh

Frontier Research on Heavy Element Systems

• R.G. for Reactions Involving heavy Nuclei

  Group Leader:Andrei Andreyev

• R.G. for Superheavy Elements

  Group Leader:Matthias Schädel

• R.G. for Actinide Material Science

  Group Leader:Zachary Fisk

• R.G. for Condensed Matter Physics of Heavy Element Systems

  Group Leader:Shinsuke Kambe

Research on Radiation Field Effects

• R.G. for Hadron Physics

  Group Leader:Ken-ichi Imai

• R.G. for Bioactinide Chemistry

  Group Leader:Toshihiko Ohnuki

• R.G. for Radiation and Biomolecular Science

  Group Leader:Akinori Yokoya

• R.G. for Spin-Polarized Positron Beam

  Group Leader:Atsuo Kawasuso

Annual Report of ASRC 2011

Printable version(2.08MB)

Organization of ASRC

Preface

Contents

Research Highlights

• Discovery of simple and versatile methods for spin current generation
• Tailor-made graphene for spintronic and nanoelectronic applications
• First observation of ²³⁹Pu NMR ?A new frontier for the physics and chemistry of actinide compounds
• Anomalous electrical resistivity associated with unconventional superconductivity in URu₂Si₂
• Magnetic-field-induced quantum critical behavior in the heavy-fermion superconductor CeCoIn₅:⁵⁹Co Nuclear Magnetic Resonance study
• Local distribution of radioactive Cs deposited on plant and soil from Fukushima Daiichi Nuclear Power Plants
• Li (Zn, Mn) As as a new generation ferromagnet based on a I-II-V semiconductor [REIMEI project]

Group Activities

• Research Group (R.G.) for Condensed Matter Theory
• R.G. for Molecular Spintronics
• R.G. for Mechanical Control of Materials and Spin Systems
• R.G. for Reactions Involving Heavy Nuclei
• R.G. for Superheavy Elements
• R.G. for Actinide Materials Science
• R.G. for Condensed Matter Physiscs of Heavy Element Systems
• R.G. for Hadron Physics
• R.G. for Bioactinide
• R.G. for Radiation and Biomolecular Science
• R.G. for Spin-Polarized Positron Beam

Annual Report of ASRC 2010 > 2011

Printable version(42.4MB)

• Preface
• Contents
• Strategy of Research / Organization of ASRC
• Cover

Research Highlights

• Effects of mechanical spin and spin currents
  New type of asymmetric fission in proton-rich nucleus ¹⁸⁰Hg
• Hidden-order stat in URu₂Si₂: High-quality single crystal and novel techniques
  A specific Ce anomaly during sorption of rare earth elements on biogenic Mn oxide
• Detection of excess electron spins in magnetic substances using highly spin-polarized positrons
  REIMEI Research Project: New approach to the exotic phases of actinide compounds

Group Activities

• Condensed Matter Theory / Molecular Spintronics
• Mechanical Control of Materials and Spin Systems / Reactions Involving Heavy Nuclei
• Superheavy Elements / Actinide Materials Science
• Condensed Matter Physics of Heavy Elements Systems / Hadron Physics
• Bioactinide / Radiation and Biomolecular Science
• Spin-Polarized Positron Beam / Publication List1

Publication lists

• Spin-Polarized Positron Beam / Publication List1
• Publication List2
• Publication List3
• Publication List4 / Appendix1

Appendix

• Publication List4 / Appendix1
• Appendix 2