Frustration and Quantum Transport
Project Area | Novel States of Matter Induced by Frustration |
Project/Area Number |
19052003
|
Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
|
Allocation Type | Single-year Grants |
Review Section |
Science and Engineering
|
Research Institution | The University of Tokyo |
Principal Investigator |
|
Co-Investigator(Kenkyū-buntansha) |
HIROI Zenji 東京大学, 物性研究所, 教授 (30192719)
NAKATUSUJI Satoru 東京大学, 物性研究所, 准教授 (70362431)
NAKAMURA Hiroyuki 京都大学, 工学研究科, 教授 (00202218)
FUJIMOTO Satoshi 京都大学, 理学研究科, 准教授 (10263063)
HANASAKI Noriaki 大阪大学, 理学研究科, 教授 (70292761)
|
Co-Investigator(Renkei-kenkyūsha) |
NOGAMI Yoshio 岡山大学, 自然科学研究科, 教授 (10202251)
|
Project Period (FY) |
2007 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥138,300,000 (Direct Cost: ¥138,300,000)
Fiscal Year 2011: ¥13,300,000 (Direct Cost: ¥13,300,000)
Fiscal Year 2010: ¥26,400,000 (Direct Cost: ¥26,400,000)
Fiscal Year 2009: ¥29,800,000 (Direct Cost: ¥29,800,000)
Fiscal Year 2008: ¥34,100,000 (Direct Cost: ¥34,100,000)
Fiscal Year 2007: ¥34,700,000 (Direct Cost: ¥34,700,000)
|
Keywords | フラストレート系 / 物性実験 / 物性理論 / 磁性 / 量子伝導 |
Research Abstract |
We have succeeded in purification of various standard materials with geometrical frustration and also discovered many new frustrated materials. We have observed transport properties where unconventional fluctuations like chirality play an essential role. We also have made theoretical predictions of transport phenomena originating from quantum Berry phase. We have also demonstrated the effects of frustrated spin fluctuations on metal-insulator transition, and shown a new criticality in electric transport.
|
Report
(7 results)
Research Products
(525 results)
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[Journal Article] Magnetization "steps" on the kagome lattice in volborthite2009
Author(s)
H. Yoshida, Y. Okamoto, T. Tayama, T. Sakakibara, M. Tokunaga, A. Matsuo, Y. Narumi, K. Kindo, M. Yoshida, M. Takigawa, Z. Hiroi
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Journal Title
Journal of Physical Society of Japan 78(in press)
NAID
Related Report
Peer Reviewed
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[Journal Article] Field-Induced Discommensuration in Charge Density Waves in o-TaS_32008
Author(s)
K. Inagaki, M. Tsubota, K. Higashiyama, K. Ichimura, S. Tanda, K. Yamamoto, N. Hanasaki, N. Ikeda, Y. Nogami, T. Ito, H. Toyokawa
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Journal Title
Journal of Physical Society of Japan 77
NAID
Related Report
Peer Reviewed
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[Journal Article] Non-thermal Evidence for Current-Induced Melting of Charge Order2008
Author(s)
M. Watanabe, K. Yamamoto, T. Ito, Y. Nakashima, M. Tanabe, N. Hanasaki, N. Ikeda, Y. Nogami, H. Ohsumi, H. Toyokawa, Y. Noda, I. Terasaki, F. Sawano, T. Suko, H. Mori, T. Mori
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Journal Title
Journal of Physical Society of Japan 77
Related Report
Peer Reviewed
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[Journal Article] Spin dynamics and spin freezing behavior in the two-dimensional antiferromagnet NiGa_2S_4 revealed by Ga-NMR, NQR and mu SR measurements2008
Author(s)
H. Takeya, K. Ishida, K. Kitagawa, Y. Ihara, K. Onuma, Y. Maeno, Y. Nambu, S. Nakatsuji, D. E. MacLaughlin, A. Koda, R. Kadono
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Related Report
Peer Reviewed
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[Presentation] S=1/2擬カゴメ格子反強磁性体Cu_3V_2O_7(OH)_2・2H_2Oの磁化ステップ2009
Author(s)
吉田紘行, 岡本佳比古, 徳永将史, 松尾晶, 鳴海康雄, 金道浩一, 田山孝, 榊原俊郎, 吉田誠, 瀧川仁, 広井善二
Organizer
日本物理学会第64回年次大会
Place of Presentation
立教大学(豊島区)
Year and Date
2009-03-28
Related Report
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[Presentation] 2次元3角格子系Ag_2MnO_2の中性子回折2009
Author(s)
蒲沢和也, 野崎洋, Mansson Martin, Bertrtand Roessli, Henry Fischer, Thomas C, Hansen, 吉田紘行, 広井善二, 杉山純
Organizer
日本物理学会第64回年次大会
Place of Presentation
立教大学(豊島区)
Year and Date
2009-03-27
Related Report
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[Presentation] Magnetization steps on the spin liquid ground state of the S=1/2 kagome-like antiferromagnet Cu_3V_2O_7(OH)_2 2H_2O2009
Author(s)
H. Yoshida, Y. Okamoto, T. Tayama, T. Sakakibara, M. Tokunaga, A. Matsuo, Y. Narumi, K. Kindo, M. Yoshida, M. Takigawa, Z. Hiroi
Organizer
2009 APS March Meeting
Place of Presentation
ピッツバーグ、米国
Year and Date
2009-03-20
Related Report
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[Presentation] External Field Effect on the Charge Order Type Ferroelectrics LuFe_2O_42008
Author(s)
T. Michiuchi, Y. Yokota, T. Komatsu, H. Hayakawa, T. Kuioda, N. Naito, Y. Matsuo, S. Mori, K. Yoshii, N. Hanasaki, T. Kambe, N. Ikeda
Organizer
9th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity
Place of Presentation
ビリニュス, リトアニア
Year and Date
2008-06-16
Related Report
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