Frustration Effects in Conductive Triangular Lattice Magnets
| Project/Area Number |
21340100
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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 | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
YONEZAWA Shingo 京都大学, 理学研究科, 助教 (30523584)
TAKATSU Hiroshi 首都大学, 東京理工学研究科, 助教 (60585602)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2011: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2009: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
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| Keywords | フラストレート磁性 / 三角格子 / カイラリティ / ホール効果 / PdCrO_2 / PdCoO_2 / PdCrO2 |
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| Research Abstract |
Atomic magnetic moments have difficulty finding the stable configuration in many of the triangular-lattice magnets, and give rise to frustration effects. To characterize such behavior,"chirality"plays an important role in addition to the"magnetization"as in ordinary magnets. We have succeeded in growing single crystals of the conductive triangular-lattice magnet PdCrO2, and discovered an anomalous Hall effect ascribable to the chirality mechanism. In addition, we reveal giant magneto-resistance oscillations in both magnetic PdCrO2 and nonmagnetic PdCoO2, which are attributable to the Fermi surface effects.
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Report
(4 results)
Research Products
(28 results)
