2010 Fiscal Year Final Research Report
Control of anisotropic charge and orbital property in quasi-two dimensional transition metal oxides
| Project/Area Number |
20340086
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ONOSE Yoshinori 東京大学, 大学院・工学系研究科, 講師 (80436526)
IGUCHI Satoshi 東京大学, 大学院・工学系研究科, 助教 (50431789)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 軌道秩序 / 電荷秩序 / 異方性 / 擬二次元系 / 光学応答 |
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| Research Abstract |
We have investigated the anisotropy of the macroscopic electronic property for the charge/orbital ordering in quasi-two-dimensional transition metal oxides, which is strongly coupled to the crystal structural distortion with a low-symmetry. For the layered manganites with the single-layered and/or bi-layered structure, we fabricated the macroscopic single-domain of the charge/orbital ordered state, and succeeded in the observation of anisotropic dielectric, optical and elastic properties and novel collective excitation.
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[Journal Article] Pseudogap of Metallic Layered Nickelate R_<2-x> Sr_xNiO_4(R=Nd, Eu) Crystals Measured Using Angle-Resolved Photoemission Spectroscopy2011
Author(s)
M. Uchida, K. Ishizaka, P. Hansmann, Y. Kaneko, Y. Ishida, X. Yang, R. Kumai, A. Toschi, Y. Onose, R. Arita, K. Held, O. K. Andersen, S. Shin, and Y. Tokura
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Journal Title
Phys. Rev. Lett
Volume: 106
Pages: 027001
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[Journal Article] Far-infrared optical study of electromagnons and their coupling to optical phonons in Eu_<1-x> Y_xMnO_3(x=0. 1, 0. 2, 0. 3, 0. 4, and 0. 45)2009
Author(s)
Y. Takahashi, Y. Yamasaki, N. Kida, Y. Kaneko, T. Arima, R. Shimano, and Y. Tokura
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Journal Title
Phys. Rev. B
Volume: 79
Pages: 214431
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