2008 Fiscal Year Final Research Report
Intermetallic compound sub-terahertz band wave absorber with giant planer magnetocrystalline anisotropy
| Project/Area Number |
18560312
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Aoyama Gakuin University |
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Principal Investigator |
NAGATA Yujiro Aoyama Gakuin University, 理工学部, 教授 (90146308)
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| Co-Investigator(Kenkyū-buntansha) |
HASHIMOTO Osamu 青山学院大学, 理工学部, 教授 (60237930)
SAMATA Hiroaki 神戸大学, 海事科学研究科, 准教授 (90265554)
MIZUSAKI Soichiro 青山学院大学, 理工学部, 助教 (60406824)
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| Project Period (FY) |
2006 – 2008
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| Keywords | 電気・電子材料 / 磁気異方性 / サブテラヘルツ / 電波吸収材料 |
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| Research Abstract |
超巨大プレーナー磁気異方性を有するSm-Fe 系永久磁石材料のサブテラヘルツ帯電波吸収体としての可能性を検討することを目的として研究を行った。Sm-Fe 系化合物多結晶粉末の作成条件を検討した結果、SmFe_3 の多結晶粉末を再現性良く作成することに成功した。単結晶の基礎磁気定数の測定結果を基に共鳴吸収周波数の理論的な検討を行った結果、SmFe_3 やSmFe_3が200~250GHZ の吸収材料となり得ることが示された。さらに、サブテラヘルツ帯における吸収特性測定法の検討を行い、テラヘルツ時間領域分光法が有効な方法であることが示された。
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[Journal Article] Low temperature magnetic properties of layered compounds: NaLnTiO_4 (Ln = Sm, Eu, Gd, Tb, Dy, Ho and Er)2008
Author(s)
T. C. Ozawa, A. Ikoshi, T. Taniguchi, S. Mizusaki, Y. Nagata, Y. Noro, H. Samata
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Journal Title
J. Alloys & Compnds. 448
Pages: 38-43
Peer Reviewed
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[Journal Article] Magnetic spin interactions observed by heat capacity measurements for layered compounds: NaLnTiO_4 (Ln=Sm, Eu, Gd, Tb, Dy, Ho, Er)2008
Author(s)
T. C. Ozawa, A. Ikoshi, T. Taniguchi, S. Mizusaki, Y. Nagata, Y. Noro, H. Samata and S. Takayanagi
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Journal Title
J. Alloys & Compnds 448
Pages: 64-68
Peer Reviewed
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[Journal Article] Magnetization and specific heat measurement of the Shastry-Sutherland lattice compounds: Ln_2BaPdO_5 (Ln = La, Pr, Nd, Sm, Eu, Gd, Dy, Ho)2008
Author(s)
T.C. Ozawa, T. Taniguchi, Y. Kawaji, S. Mizusaki, Y. Nagata, Y. Noro, H. Samata, H. Mitamura, and S. Takayanagi
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Journal Title
J. Alloys Compnds. 448
Pages: 96-103
Peer Reviewed
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[Journal Article] Crystallographic and magnetic properties of mixed valence oxides CaRu_<1-x>Mn_xO_32008
Author(s)
T. Taniguchi, S. Mizusaki, N. Okada, Y. Nagata, S.H. Lai, M.D. Lan, N. Hiraoka, M. Itou, Y. Sakurai, T. C. Ozawa, Y. Noro and H. Samata
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Journal Title
Phys. Rev. B 77
Pages: 014406-1-7
Peer Reviewed
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[Journal Article] The magnetic Compton scattering for the strongly correlated electron system of orthorhombic perovskite ruthenates CaRu_<1-x>T_xO_3 ( T = Ti, Mn, Fe, Ni )2007
Author(s)
S. Mizusaki, N. Okada, T. Taniguchi, Y. Nagata, N. Hiraoka, Y. Noro , M. Itou, and Y. Sakurai
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Journal Title
J. Mag. Mag. Mater. 310
Pages: e325-e326
Peer Reviewed
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