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分子磁性の理論

Research Project

Project/Area Number 04242101
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Research InstitutionOsaka University

Principal Investigator

山口 兆  大阪大学, 理学部, 教授 (80029537)

Co-Investigator(Kenkyū-buntansha) 藪下 聡  慶応義塾大学, 理工学部, 助教授 (50210315)
北原 和夫  東京工業大学, 理学部, 教授 (20107692)
高橋 實  東京大学, 物性研究所, 教授 (40029731)
那須 奎一郎  高エネルギー物理学研究所, 教授 (90114595)
福留 秀雄  京都大学, 理学部, 教授 (90025289)
Project Period (FY) 1992 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥76,200,000 (Direct Cost: ¥76,200,000)
Fiscal Year 1994: ¥18,500,000 (Direct Cost: ¥18,500,000)
Fiscal Year 1993: ¥21,500,000 (Direct Cost: ¥21,500,000)
Fiscal Year 1992: ¥36,200,000 (Direct Cost: ¥36,200,000)
Keywords有機強磁性体 / 量子化学計算 / ハバ-ドモデル / 共鳴ハートリー・フォック / 磁場効果 / スピン動力学 / 分子動力学 / SDW / ハバードモデル / 共鳴ハートリーフォック法 / 電子相関 / ポーラロン強磁性 / 電子格子相互作用 / ラジカル再結合
Research Abstract

山口は開殻分子軌道(SOMO)の対称性に注目して分子間強磁性相互作用を実現するための軌道対称則を導出し,実験結果の得られているニトロキシド類に適用し,良好な一致を得た。さらに,理論的に強磁性相互作用が期待される新規分子骨格と分子積層様式を提案した。また,有機磁性金属の可能性を検討するため,各種モデル系のab initio計算を実行した。
福留は分子内強磁性的相互作用を持つメタ・フェニレン・ビス・フェニルメチレンに正孔を導入した場合を共鳴ハートリー・フォック法で検討し,SDWポーラロンの量子運動のメカニズムを解明し,基底状態が四重項になることを示した。
那須はC_<60>およびその結晶の光吸収スペクトルに対する励起子効果を拡張ハバ-ドモデルにより検討し,その重要性を示した。さらに,強い可視光により誘起される非弾性X線散乱の共鳴増幅を電子格子相互作用の視点より解明した。
高橋はスピン1/2を持つ反強磁性ハイゼンベルグ鎖の帯磁率に磁場の関数として対数的アノマリーが存在しうることを理論的に証明し,数値計算によってもこの傾向を確認した。さらに,p-CDTVより構成される強磁性ハイゼンベルグ鎖の比熱を計算し,実測と良い一致を得た。
薮下は気相における磁場効果の理論的研究の一環として,IC1分子の励起状態を高精度スピン軌道CI法を用いて研究し,原子間距離に対して数個のポテンシャル曲線を描き,非断熱相互作用について詳細に検討し,反応の分岐比を求めたところ,実験と良い一致を見た。
北原は液相中におけるスピン動力学を検討するため,ラジカル対が遠隔対,近隔対の2状態をとる2状態モデルの解析解を求め,実験との対応を検討した。さらに,ゆらぎ力を入れた反応拡散方程式の解析も実行した。

Report

(3 results)
  • 1994 Annual Research Report
  • 1993 Annual Research Report
  • 1992 Annual Research Report
  • Research Products

    (85 results)

All Other

All Publications (85 results)

  • [Publications] M.Okumura,: "A MO-theoretical calculation of the antiferromagnetism in the g-phase of p- nitrophenyl nitronyl nitroxide." Chem.Phys.Lett.219(1). 36-44 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.Yamaguchi,: "Electronic Structures of Poly-Cations and -Anions of C_<60>.Possible Mechanisms of Organic Ferromagnetism" Chem.Phys.Lett.226. 372-380 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Okumura,: "Theoretical studies of effective exchange interactions between molecular oxygens.Possibility of Haldane systems," J.Mol.Structure(Theochem). 310. 177-183 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Yamanaka,: "EHF theory of chemical reactions IV.UNO CASSCF,UNO CASPT2 and R(U)HF coulpled-cluster(CC)wavefunctions," J.Mol.Strucxture(Theochem). 310. 205-218 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Yamanaka,: "Heisenberg Model for Radical Reactions III.Direct exchange coupling between transition metal ion and triplet methylene," J.Mol.Strucxture(Theochem). 310. 185-196 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Yamanaka,: "CASPT2 and MRMP2 calculations of potential curves and effective exchange integrals for the dimer of triplet methylene" Chem.Phys.Lett.225. 213-220 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Okumura.: "Ferromagnetic intermolecular interaction of the cation radical of m-N-methylpyridinium nitronyl nitroxide.A CASSCF study" Chem.Phys.Lett.228. 575-582 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Yamanaka,: "Effective exchange integrals for open-shell species by density functional methods" Chem.Phys.Lett.231. 25-33 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Yamanaka,: "CASSCF and CASPT2 calculations of hole-doped polycarbenes.Possibilities of organic ferromagnetic conductors and metals" Chem.Phys.Lett.233. 257-265 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Yamanaka,: "CASSCF and CASPT2 calculations of hole-doped amines with triplet carbene groups.Possibilities of high-Tc organic ferrimagnets." Chem.Phys.Lett.233. 88-94 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Yamanaka,: "Theoretical studies of spin density populations on nitroxide and nitronylnitroxide derivatives" Chem.Phys.Lett.(in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] W,Mori: "Spin glass behavior of synthetic atacamite,Cu_2Cl(OH)_3." Mol.Cryst.Liq.Cryst.(in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Yamanaka,: "Theoretical studies of spin populations on nitronyl nitroxide,phenyl nitronyl nitroxide and p-N N" Mol.Cryst Liq.Cryst.(in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Fujiwara.: "Iron-schiff base magnetic polymers.Synthesis and characterization" Mol.Cryst.Liq.Cryst.(in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Kawakami,: "Theoretical approaches to molecular magnetism II:No-overla and orientation principles for ferromagnetic interactions," Mol.Cryst.Liq.Cryst.(in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Fujiwara.: "Magnetic properties of heteropolymetallic systems." Mol.Cryst.Liq.Cryst.(in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Fujiwara.: "Molecular design of ferro(ferri)magnetic inorganic polymers and complexes" Mol.Cryst.Liq.Cryst.(in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] N.Tomita,: "The SDW-CDW phase transitions and quantum fluctuations in the one dimensional extended Hubbard model." Synthetic metals. (in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Yamanaka,: "Quantum fluctuations in the one dimensional Hubbard model with a less than half filling," Synthetic metals. (in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] A.Ikawa,: "Electronic structures of ions of m-phenylene(bis phenyl methylene)" Molecular crystals and liquid crystals. (in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] H.Mizouchi,: "Design of donor oligomers with parallel spins upon electron transfer" J.Am.Chem.Soc.(in press).

    • Related Report
      1994 Annual Research Report
  • [Publications] K.Nasu: "Resonance enhancement of inelastic X-ray scatterings induced by strong visible lights" J.Phys.Soc.Jpn. 2416-2427 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Tsubo: "Theory for exciton effects on optical absorption spectra of C_<60> molecule and C_<60> crystal" J.Phys.Soc.Jpn. 2401-2409 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] T.Tsubo: "Theory for exciton effects on light absorption spectra of f.c.c. type C_<60> crystal" Solid.State.Commun.91. 907-911 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] A.Z.Chowdury: "T_<1u> Hubbard model for ferromagnetic and optical properties of potassium doped zeolite" Phys.and Chem.of Solids. (in press). (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Takahashi: "Analytical and numerical investigations of spin chains" Prog.Theoret.Phys.91. 1-15 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] H.Nakano: "Quantum Heisenberg chain with long-range ferromagnetic interactions at low temperature" J.Phys.Soc.Jpn. 63. 926-933 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] H.Nakamura: "The free energy and the scaling function on the ferromagnetic Heisenberg chain in a magnetic filed" J.Phys.Soc.Jpn. 63. 2563-2571 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] F.V.Kusmartsev,: "Strong correlations versus U-center pairing and fractional Aharonov-Bohm effect" Phys.Rev.B49. 49. 16234-16247 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Eggert,: "Susceptibility of the spin 1/2 Heisenberg antiferromagnetic chain," Phys.Rev.Lett.73. 332-335 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Takahashi: "Excitation spectrum of S=1 antiferromagnetic chains" Phys.Rev.B50. 50. 3045-3051 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] H.Nakano: "Quantum Heisenberg model with long-range ferromagnetic interactions" Phys.Rev.B50. 50. 10331-10335 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Yajima: "Correlation functions of spin-1 XXZ chaon in a magnetic field" J.Phys.Soc.Jpn. 63. 3634-3632 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Takahashi: "Qunatum Heisenberg ferromagnets with long-range interactions" J.Phys.Soc.Jpn. 63. 4256-4257 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 関 和彦: "Relative spatial diffusion in turbulent media" Physica A. 209. 369-384 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] J.Gorecki: "Molecular dynamics simulations of noneguilibrium spatial correlations in a reaction diffusion system" Physica A. 211. 327-343 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 北原 和夫: "General formula for the deformation of a plate due to surface stress" Jpn.J.App.Phys.33. 3673-3674 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Y.Amatatsu: "Ab initio potential energy surfaces and trajectory studies of A-band photoddisociation dynamics:ICN-I+CN and I^*+CN"" J.Chem.Phys.100. 4894-4909 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 坪富幸・那須奎一郎: "C_<60>での励起子効果と光吸収スペクトル" 固体物理, 200 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 北原和夫・田中豊一編: "生命現象と物理学「いきもの」と「もの」の間" 朝倉書店, 161 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 北原和夫・吉川研一: "非平衡系の科学I 反応・拡散・対流の現象論" 講談社サイエンティフィック, 210 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 北原和夫: "非平衡系の科学II 緩和過程の統計力学" 講談社サイエンティフィック, 158 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Okumura: "Theoretical Approaches to Molecular Magnetisms:Through-bond Coupling between Triplet Carbenes and Related Species" Mol.Crys.Liq.Crys.233. 41-60 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Ishida: "Intermolecular ferromagnetic interaction of 4-(1-pyrenylmethyleneamino)-2,2,6,6-tetramethylpiperidin-1-oxyl" Mol.Crys.Liq.Crys.232. 99-102 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] M.Okumura: "Theoretical Studies of Magnetic Orderings in the β-and γ-phases of p-NPNN and Related Nitroxides" Mol.Crys.Liq.Crys.232. 35-44 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Yamaguchi: "Comparison between Spin Restricted and Unrestricted Post Hartree Fock Calculations of Effective Exchange Integrals in Ising and Heisenberg Models" Chem.Phys.Lett.210(1-3). 201-210 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Yamaguchi: "High-spin Ion Radicals of Polyenes and Polyamines.A MO Theoretical Study" Chem.Phys.Lett.207(1). 9-14 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] M.Okumura: "A theoretical explanation of the organic ferromagnetism in the β phase of para nitrophenyl nitronyl nitroxide" Chem.Phys.Lett.207(1). 1-8 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] N.Tomita: "Elementary defects,halfons,connecting the SDW and CDW in the one dimensional extended Hubbard model" J.Phys.Soc.Jpn.62(5). 1634-1652 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] A.Ikawa: "Orbital optimization in the resonating Hartree-Fock approximation and its application to the one dimensional Hubbard model" J.Phys.Soc.Jpn. 62(5). 1653-1668 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] N.Tomota: "Halfon excitations connecting SDW and CDW" Synthetic Metals. 55-57. 2761-2766 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] A.Ikawa: "Quantum fluctuations to destroy the antiferromagnetic spin order in the one dimensional half filled Hubbard model" Mol.Cryst.Liq.Cryst. 233. 81-88 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] H.Mizoguchi: "Design of donor oligomers to produce parallel spins upon charge transfer" Mol.Cryst.Liq.Cryst. 233. 127-132 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] N.Tomita: "Resonating Hartree-Fock studies on electron correlation and bond alternation in the one dimensional half filled Hubbard model" J.Phys.Soc.Jpn.62(12). 4338-4351 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] N.Tomita: "Resonating Hartree-Fock studies on electronic structures of excited states in the one dimensional bond alternated Hubbard model" J.Phys.Soc.Jpn. 63(1). 189-206 (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] X.Sun: "Third nonlinear optical spectrum of Pt-Cl complex" Synthetic Metals. 55-57. 3986-3991 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Iwano: "Nonlinear optical spectra on halogen bridged mixed-valence paltinum complexes" J.Phys.Soc.Jpn. 62. 1778-1781 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] J.Gorecki: "Molecular dynamics simulations of nonequilibrium spatial correlations in a reaction diffusion systems" Physica A. (in press).

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Yamaguchi: "in Functional Materials(M.Doyama et al.Eds.,Elsevier)" Ab initio studies on strongly electron-correlated systems-Dynamic spin polarization rule and organic ferromagnets-, 776 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] M.Okumura: "in Computer Aided Innovation of New Materials II(M.Doyama et al.,Eds.,Tokyo Elsevier" Theoretical Study of Organic Magnetisms:Nitronyl Nitroxide and Related Species, 1813 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 北原和夫: "ゆらぎの科学3" 森北出版(東京), 202 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 北原和夫: "Extended Thermodymanics and Onsager-Machlup Function" 統計数理研究所(東京)(印刷中), (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Nasu: "New Functionality Materials,C(T.Tsuruta Ed.Elsevier,Amsterdam" Many electron system coupling strongly with nonlinear phonons, 776 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Yamaguchi et al.: "MO Theoretical Studies of Magnetic Intercations for Clusters of Nitronyl Nitroxide and Related Species" Chem.Phys.Lett.190. 353-360 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yamaguchi et al.: "Theoretical calculations of effective exchange integrals between nitronyl nitroxides with donor and acceptor groups" Chem.Phys.Lett.191. 237-244 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yamaguchi et al.: "Theoretical studies of CT ferromagnets and Ferrimagnets:Metallocenium-TCNE complexes" Mol.Cryst.Liq.Cryst.218. 229-234 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Yoshida et al.: "Ab initio calculations of nonlinear optical properties of silicon compounds" Mol.Cryst.Liq.Cryst.217. 71-76 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] T.Tsunekawa et al.: "Ab initio molecular orbital study of nitrogencontaining polymers with donor-acceptor substituents" J.Phys.Chem.96. 10268-10275 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] M.Okumura et al.: "Theoretical studies of magnetic orderings in the β-and γ-phases of p-NPNN and related species" Mol.Cryst.Liq.Cryst.(1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Fukutome et al.: "Regular Deneity Wave in the Half Field ID Extended Hubbard model with a Bond Alternation" Solid State Commun.81. 663-666 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Fukutome et al.: "Anomalies in Spin of SDW Solitons and in Change of CDW solitons in the ID Hubbanel Model" Solid State Commun.81. 659-662 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Fukutome et al.: "Coulomb Repulsion Dependence of SDW Solitons and Polarons" Solid Stale Commun.82. 407-411 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Fukutome et al.: "Resonating Hartree-Fock Theory of a One Dimensional Electronic Syotems" Mol.Cryst.Lig.Cryst.216. 145-150 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] H.Fukutome et al.: "Res HF Theory of the one Dimensional Hubbard Model II.Breathen Fluctuations" J.Phys.Soc.Jpn. 61. 3209-3219 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Nasu et al.: "Freguency Dependence of Third Harmonic Generation of Polyacetylene" Applied Physics. B54. 170-174 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Nasu et al.: "Spectrum of Third Harmoric Generation of MX Conplex" Chinese Phys.Lett.9. 431-434 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Nasu et al.: "Nonlinean lattice relaxation process of Exciton in Quasi One Dimensional Cmplexes" Phys.Rev.B45. 1605-1611 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Nasu et al.: "New approach to local polaron model in fluctuationg-valence system" Phys.Rev.B45. 2148-2163 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Nasu et al.: "Ettect of Electrn Interaction on Two-Dimensional Peierls Instabiluty" Phys.Rev.B46. 1710-1714 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Nasu et al.: "Enhance ment,Reduction and Inversion of Isotope Effect due to Anharmonic Phonons" J.Phys.Soc.Jpn. 61. 4511-4520 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Kitahara et al.: "Two-Dimensional Bernstein-Green-Kruskal Solution" J.Phys.Soc.Jpn.61. 2795-2804 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yamaguchi et al.: "Theoretical and general aspects of organic peroxides in “Organic Peroxides"" W.Ando Ed.,John Wiely & Suns Ltd, 845 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] K.Yamaguchi et al.: "Theoretical study of organic magnetisms in “Computer Aided Innovation of New Materials"" Eds.M.Doyama et al.,Elsevier Science Pub., (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 那須 奎一郎: "非線型格子緩和過程" 日本物理学会, 200 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 北原 和夫: "“非平衡系のゆらぎ「ゆらぎの科学(3)」"" 森北出版, (1993)

    • Related Report
      1992 Annual Research Report

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Published: 1992-04-01   Modified: 2016-04-21  

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