Strongly Correlated f-Electron Study in Plutonium Compounds

• Project/Area Number: 19340104
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: HAGA Yoshinori Japan Atomic Energy Agency, 先端基礎研究センター, 主任研究員 (90354901)
• Co-Investigator(Kenkyū-buntansha): YAMAMOTO Etsuji 日本原子力研究開発機構, 先端基礎研究センター, 副主任研究員 (50343934) ; TATEIWA Naoyuki 日本原子力研究開発機構, 先端基礎研究センター, 副主任研究員 (50346821) ; MATSUDA Tatsuma 日本原子力研究開発機構, 先端基礎研究センター, 研究員 (30370472)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000); Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2008: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2007: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
• Keywords: アクチノイド科学 / 強相関電子系 / プルトニウム化合物 / 単結晶育成 / 磁性 / 超伝導

Research Abstract

This project aims to find new materials and new phenomena in actinide compounds including plutonium, which is difficult to handle experimentally because of its radiation. We developed a sample preparation method using a long-life isotope of ^<242>Pu to enable the precise physical property measurements and succeeded to prepare intermetallic compound PuPd_5Al_2. We also found a new compound NpPd_5Al_2 which showed superconductivity due to 5f-based heavy electron states.

Research Products

• [Journal Article] Neutron Scattering Study on U-Dichalcogenides (2010)
  • Author(s): N. Metoki, K. Kaneko, S. Ikeda, H. Sakai, E. Yamamoto, Y. Haga, Y. Homma, Y. Shiokawa
  • Journal Title: IOP Conf. Series: Materials Science and Engineering 9 Pages: 12088-12088
• [Journal Article] Molecular and Crystal Structures of Plutonyl (VI) Nitrate Complexes with N-Alkylated 2-Pyrrolidone Derivatives: Cocrystallization Potentiality of UVI and PuVI (2010)
  • Author(s): S.-Y. Kim, .K. Takao, Y. Haga, E. Yamamoto, Y. Kawata, Y. Morita, K. Nishimura, Y. Ikeda
  • Journal Title: Crystal Growth & Design 10 Pages: 2033-2033
• [Journal Article] Fermi Surface Properties of Paramagnetic NpCd11 with a Large Unit Cell (2010)
  • Author(s): Y. Homma, D. Aoki, Y. Haga, R. Settai, H. Sakai, S. Ikeda, E. Yamamoto, A. Nakamura, Y. Shiokawa, T. Takeuchi, H. Yamagami, Y. Onuk
  • Journal Title: IOP Conf. Series: Materials Science and Engineering 9 Pages: 12091-12091
• [Journal Article] Magnetism and Superconductivity in the new Family of Actinide Compounds : AnPd5Al2 (2010)
  • Author(s): Y. Haga, Y. Homma, D. Aoki, S. Ikeda, T.D. Matsuda, N. Tateiwa, E. Yamamoto, A. Nakamura, K. Nakajima, Y. Arai, F. Honda, R. Settai, Y. Onuki
  • Journal Title: IOP Conf. Series: Materials Science and Engineerin 9 Pages: 12046-12046
• [Journal Article] Angle Resolved Photoemission Study on Uranium Compounds (2010)
  • Author(s): S.-i. Fujimori, T. Ohkochi, T. Okane, Y. Saitoh, A. Fujimori, H. Yamagami, Y. Haga, E. Yamamoto, Y. Onuki
  • Journal Title: IOP Conf. Series: Materials Science and Engineering 9 Pages: 12045-12045
• [Journal Article] Anisotropic Spin Fluctuations in Heavy-Fermion Superconductor NpPd5Al2 (2010)
  • Author(s): H. Chudo, H. Sakai, Y. Tokunaga, S. Kambe, D. AOKI, Y. Homma, Y. Haga, T.D. Matsuda, Y. Onuki, H. Yasuoka
  • Journal Title: J. Phys. Soc. Jpn. 79 Pages: 53704-53704
• [Journal Article] 31P-NMR Study of Hyperfine Interactions and Magnetic Fluctuations in the Neptunium-Based Filled Skutterudite NpFe4P12 (2009)
  • Author(s): Y. Tokunaga, S. Kambe, H. Sakai, H. Chudo, T.D. Matsuda, Y. Haga, H. Yasuoka, D. Aoki, Y. Homma, Y. Shiokawa, Y. Onuki
  • Journal Title: Phys. Rev. B 79 Pages: 54420-54420
• [Journal Article] Localized 5f Antiferromagnetism in Cubic UIn3: 115In-NMR/NQR Study (2009)
  • Author(s): H. Sakai, S. Kambe, Y. Tokunaga, H. Chudo, Y. Tokiwa, D. Aoki, Y. Haga, Y. Onuki, H. Yasuoka
  • Journal Title: Phys. Rev. B 79 Pages: 104426-104426
• [Journal Article] Possible Existence of Magnetic Polaron in Nearly Ferromagnetic Semiconductor β-US2 (2009)
  • Author(s): S. Ikeda, H. Sakai, N. Tateiwa, T.D. Matsuda, D. Aoki, Y. Homma, E. Yamamoto, A. Nakamura, Y. Shiokawa, Y. Ota, K. Sugiyama, M. Hagiwara, K. Kindo, K. Matsubayashi, M. Hedo, Y. Uwatoko, Y. Haga, Y. Onuki
  • Journal Title: J. Phys. Soc. Jpn. 78 Pages: 114704-114704
  • NAID: 40016829637
• [Journal Article] Unconventional Superconductivity of NpPd_5Al_2 (2009)
  • Author(s): D.Aoki, et al.
  • Journal Title: J.Phys.Condens.Matter 21
  • Peer Reviewed
• [Journal Article] Magnetic and Electrical Properties in NpAl4 and UAl4 (2009)
  • Author(s): D.Aoki, et al.
  • Journal Title: J.Phys.Soc.Jpn. 78
  • Peer Reviewed
• [Journal Article] Magnetic and superconducting properties of a pressure-induced superconductor CePd5Al2 (2009)
  • Author(s): F.Honda, et al.
  • Journal Title: Physica B 404 Pages: 3202-3205
  • Peer Reviewed
• [Journal Article] Possible Existence of Magnetic Polaron in Nearly Ferromagnetic Semiconductor β-US2 (2009)
  • Author(s): S.Ikeda, et al.
  • Journal Title: J.Phys.Soc.Jpn. 78
  • Peer Reviewed
• [Journal Article] Gap Structure and Exotic Superconducting State of URu2Si2 (2009)
  • Author(s): Y.Kasahara, et al.
  • Journal Title: J.Phys. : Conf.Ser. 150
  • Peer Reviewed
• [Journal Article] Transport properties of neptunium superconductor NpPd5Al2 (2009)
  • Author(s): T.D.Matsuda, et al.
  • Journal Title: J.Phys. : Conf.Ser. 150
  • Peer Reviewed
• [Journal Article] Vortex Lattice Melting in the Ultraclean Heavy-Fermion Superconductor URu2Si2 (2009)
  • Author(s): R.Okazaki, et al.
  • Journal Title: J.Phys. : Conf.Ser. 150
  • Peer Reviewed
• [Journal Article] Superconductivity in a ternary silicide Ca2Pt3Si5 (2009)
  • Author(s): T.Takeuchi, et al.
  • Journal Title: J.Phys.Soc.Jpn. 78
  • Peer Reviewed
• [Journal Article] Evaluations of pressure-transmitting media for cryogenic experiments (2009)
  • Author(s): N.Tateiwa, Y.Haga
  • Journal Title: Rev.Sci.Instrum. 80
  • Peer Reviewed
• [Journal Article] Magnetic Properties of Single Crystalline RCu2Si R : Rare Earth (2009)
  • Author(s): N. D. Dung, et al.
  • Journal Title: J. Phys. Soc. Jpn. 78
  • Peer Reviewed
• [Journal Article] Crossover from Quantum Critical to Overdamped Regime in Heavy Fermion Compound USn3 (2009)
  • Author(s): S. Kambe, et al.
  • Journal Title: Phys. Rev. Lett. 102
  • Peer Reviewed
• [Journal Article] 31P-NMR Study of Hyperfine Interactions and Magnetic Fluctuations in the Neptunium-Based Filled Skutterudite NpFe4P12 (2009)
  • Author(s): Y. Tokunaga, et al.
  • Journal Title: Phys. Rev. B 78
  • Peer Reviewed
• [Journal Article] Flux Line Lattice Melting and the Formation of a Coherent Quasiparticle Bloch State in the Ultraclean URu2Si2 Superconductor (2008)
  • Author(s): R. Okazaki, Y. Kasahara, H. Shishido, M. Konczykowski, K. Behnia, Y. Haga, T.D. Matsuda, Y. Onuki, T. Shibauchi, Y. Matsuda
  • Journal Title: Phys. Rev. Lett. 100 Pages: 37004-37004
• [Journal Article] Crystal structure of frustrated antiferromagnet UNi4B (2008)
  • Author(s): Y. Haga, A. Oyamada, T.D. Matsuda, S. Ikeda, Y. Onuki
  • Journal Title: Physica B: Condensed Matter 403 Pages: 900-900
• [Journal Article] Crystal Structure and Magnetic Properties of New Ternary Uranium Compound U2/3Pd2Al5 (2008)
  • Author(s): Y. Haga, T.D. Matsuda, S. Ikeda, E. Yamamoto, N.D. Dung, Y. Onuki
  • Journal Title: J. Phys. Soc. Jpn. 77Suppl.A Pages: 365-365
• [Journal Article] Crystal Structure and Magnetic Properties of the new Ternary Actinide Compounds AnPd5Al2 (An = U, Np) (2008)
  • Author(s): Y. Haga, D. Aoki, Y. Homma, S. Ikeda, T.D. Matsuda, E. Yamamoto, H. Sakai, N. Tateiwa, N.D. Dung, A. Nakamura, Y. Shiokawa, Y. Onuki
  • Journal Title: J. Alloys. Compds. 464 Pages: 47-47
• [Journal Article] 27Al NMR Evidence for the Strong-Coupling d-Wave Superconductivity in NpPd5 Al2 (2008)
  • Author(s): H. Chudo, H. Sakai, Y. Tokunaga, S. Kambe, D. Aoki, Y. Homma, Y. Shiokawa, Y. Haga, S. Ikeda, T.D. Matsuda, Y. Onuki, H. Yasuoka
  • Journal Title: J. Phys. Soc. Jpn. 77 Pages: 83702-83702
• [Journal Article] 27Al NMR Evidence for the Strong-Coupling d-Wave Supercond uctivity in NpPd5 Al2 (2008)
  • Author(s): H. Chudo, et al.
  • Journal Title: J. Phys. Soc. Jpn. 77
  • Peer Reviewed
• [Journal Article] Single Crystal Growth and de Haas-van Alphen Effect in Lu2R h3Ga9 with Quasi-Two-Dimensional Electronic State (2008)
  • Author(s): N. D. Dung, et al.
  • Journal Title: J. Phys. Soc. Jpn. 77
  • Peer Reviewed
• [Journal Article] Crystal structure of frustrated antiferromagnet Uni4B (2008)
  • Author(s): Y. Haga, et al.
  • Journal Title: Physica B 403 Pages: 900-902
  • Peer Reviewed
• [Journal Article] Pressure Effect on Paramagnet β-US2 (2008)
  • Author(s): S. Ikeda, et al.
  • Journal Title: Physica B 403 Pages: 893-894
  • Peer Reviewed
• [Journal Article] Heavy-Fermion Formation in USn3 : Static and Dynamical Properties (2008)
  • Author(s): S. Kambe, et al.
  • Journal Title: Phys. Rev. B 77
  • Peer Reviewed
• [Journal Article] Observation of 5f electrons in the itinerant limit : Three-dimensional electronic structure of UB[sub 2] (2008)
  • Author(s): T. Ohkochi, et al.
  • Journal Title: Phys. Rev. B 78
  • Peer Reviewed
• [Journal Article] Fermi surface revolution in CeRhIn5 and non-centrosymmetric superconductivity in CeIrSi3 (2008)
  • Author(s): Y. Onuki, et al.
  • Journal Title: Physica B 403 Pages: 963-967
  • Peer Reviewed
• [Journal Article] High-field magnetization of single crystals CeCu2X2 (X=Si and Ge) and YbCu2Si2 (2008)
  • Author(s): K. Sugiyama, et al.
  • Journal Title: Physica B 403 Pages: 1023-1025
  • Peer Reviewed
• [Journal Article] AC heat capacity and resistivity measurements on the pressure-induced superconductor CeIrSi3 without inversion center (2008)
  • Author(s): N. Tateiwa, et al.
  • Journal Title: Physica B 403 Pages: 1156-1158
  • Peer Reviewed
• [Journal Article] Crystal Structure and Magnetic Properties of the new Ternary Actinide Compounds AnPd_5Al_2(An=U,Np) (2008)
  • Author(s): Y. Hagaa, et. al.
  • Journal Title: Journal of Alloys ad Compounds (in press)
  • Peer Reviewed
• [Journal Article] Crystal structure of frustrated antiferromagnet UNi_4B (2008)
  • Author(s): Y. Haga, et. al.
  • Journal Title: Physica B 403 Pages: 900-902
  • Peer Reviewed
• [Journal Article] Pressure-Induced Superconductivity in Antiferromagnet CePd_5 Al_2 (2008)
  • Author(s): F. Honda, et. al.
  • Journal Title: Journal of the Physical Society of Japan 77
  • Peer Reviewed
• [Journal Article] Electronic Band Structure and Fermi Surface of Heavy-Fermion Neptunium Superconductor NpPd5Al2 (2007)
  • Author(s): H. Yamagami, D. Aoki, Y. Haga, Y. Onuki
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 83708-83708
• [Journal Article] Unconventional Heavy-Fermion Superconductivity of a New Transuranium Compound NpPd5Al2 (2007)
  • Author(s): D. Aoki, Y. Haga, T.D. Matsuda, N. Tateiwa, S. Ikeda, Y. Homma, H. Sakai, Y. Shiokawa, E. Yamamoto, A. Nakamura, R. Settai, Y. Onuki
  • Journal Title: J. Phys. Soc. Jpn. 76 Pages: 63701-63701
  • NAID: 210000106711
• [Presentation] Unconventional magnetism and superconductivity in the ternary actinide compounds AnPd5Al2 (2010)
  • Author(s): Y. Haga
  • Organizer: International Conference on Strongly Correlated Electron Systems
  • Place of Presentation: Santa Fe, USA(invited)
  • Year and Date: 2010-07-01
• [Presentation] New compounds in actinide-based intermetallic system and physical properties (2010)
  • Author(s): Y. Haga
  • Organizer: The Third InternationalWorkshop on Dual Nature of f-Electrons
  • Place of Presentation: Dresden, Germany(invited)
  • Year and Date: 2010-05-27
• [Presentation] ウランカルコゲナイド化合物β-US2の圧力誘起強磁性 (2010)
  • Author(s): 立岩尚之, 他
  • Organizer: 日本物理学会2010年年次大会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-21
• [Presentation] Novel magnetism and superconductivity in actinide-based intermetallic compounds (2009)
  • Author(s): Y.Haga, et al.
  • Organizer: APSORC 2009
  • Place of Presentation: Napa, California
  • Year and Date: 2009-11-30
• [Presentation] 重い電子系超伝導体NpPd5Al2の磁場中比熱 (2009)
  • Author(s): 芳賀芳範, 他
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-25
• [Presentation] ウランカルコゲナイド化合物US2の圧力誘起秩序相の研究 (2009)
  • Author(s): 立岩尚之, 他
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-25
• [Presentation] Fermi surface properties of YbCu2Si2 (2009)
  • Author(s): T.D.Matsuda, et al.
  • Organizer: The International Conference on Quantum Criticality and Novel Phases
  • Place of Presentation: Dresden, Germany
  • Year and Date: 2009-08-03
• [Presentation] Anisotropic transport properties of NpPd5Al2 (2009)
  • Author(s): T.D.Matsuda, et al.
  • Organizer: The 18 th International Conference of Magnetism
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-27
• [Presentation] Exotic magnetism and superconductivity in actinide compounds (2009)
  • Author(s): Y. Haga
  • Organizer: Actinides 2009
  • Place of Presentation: San Francisco, USA(plenary)
  • Year and Date: 2009-07-14
• [Presentation] Exotic magnetism and superconductivity in actinide compounds (2009)
  • Author(s): Y.Haga, et al.
  • Organizer: Actinides 2009
  • Place of Presentation: San Francisco
  • Year and Date: 2009-07-14
• [Presentation] ネプツニウム化合物超伝導体NpPd5Al2の上部臨界磁場における1次転移II (2009)
  • Author(s): 芳賀芳範, 他
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-28
• [Presentation] PuPd_5Al_2の探索と物性 (2008)
  • Author(s): 芳賀芳範, 他
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 岩手大学
  • Year and Date: 2008-09-21
• [Presentation] ネプツニウム化合物超伝導体NpPd_5Al_2の上部臨界磁場における1次転移 (2008)
  • Author(s): 芳賀 芳範, 他
  • Organizer: 日本物理学会第63回年次大会
  • Place of Presentation: 近畿大学
  • Year and Date: 2008-03-26
• [Presentation] 超ウラン化合物で実現する重い電子系超伝導 (2007)
  • Author(s): 芳賀芳範
  • Organizer: 物性研究所50周年記念シンポジウム
  • Place of Presentation: 柏市
  • Year and Date: 2007-11-29
• [Presentation] High pressure study on the strong coupling superconductivity in non-centrosymmetric compound CeIrSi3 (2007)
  • Author(s): N. Tateiwa
  • Organizer: Magnetic and Superconducting Materials
  • Place of Presentation: Khiva, Uzbekistan(invited)
  • Year and Date: 2007-09-25
• [Presentation] NpPd_5Al_2及び関連物質の探索 (2007)
  • Author(s): 芳賀 芳範, 他
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-22
• [Presentation] Magnetism and superconductivity studies of actinide compounds using high-quality single crystal growth (2007)
  • Author(s): Y. Haga
  • Organizer: The International Workshop on Exotic States in Materials with Strongly Correlated Electrons
  • Place of Presentation: Sinaia, Romania(invited)
  • Year and Date: 2007-09-10
• [Presentation] Magnetism and superconductivity studies of actinide compounds using high-quality single crystal growth (2007)
  • Author(s): Y. Haga, et. al.
  • Organizer: The International Workshop on Exotic States in Materials with Strongly Correlated Electrons
  • Place of Presentation: Sinaia,Romania
  • Year and Date: 2007-09-10
• [Presentation] Crystal structure of UNi4B (2007)
  • Author(s): Y. Haga
  • Organizer: International Conference on Strongly Correlated Electron Systems
  • Place of Presentation: Houston, USA
  • Year and Date: 2007-05-14
• [Presentation] 重い電子系超伝導体NpPd5Al2の磁気熱量効果
  • Author(s): 芳賀芳範, 他
  • Organizer: 日本物理学会2010年年次大会
  • Place of Presentation: 岡山大学
• [Remarks] 「ネプツニウム化合物で初めての超伝導を発見」平成19年5月25日、東北大学金研・日本原子力研究開発機構・大阪大学による共同発表