phase transitions induced by pressure and transport properties in ferromagnetic metal with non-collinear spins
| Project/Area Number |
20740186
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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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 |
IGUCHI Satoshi The University of Tokyo, 大学院・工学系研究科, 助教 (50431789)
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| Project Period (FY) |
2008 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | 磁気輸送特性 / フラストレーション系 / モット転移 / 圧力誘起相転移 / 強相関系 / 物性実験 / 磁性 / 圧力効果 / 磁気輸送現象 / 相転移 / 輸送特性 |
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| Research Abstract |
We have investigated the high pressure effect for the pyrochlore-type molybdates, which is the Mott transition system, to search for new spin-charge coupled phenomena in the geometrically frustrated lattices. It was found that a strongly correlated paramagnetic metal phase emerges under high pressures regardless of the ground state at ambient pressure. This anomalous metallic phase is considered as a result of the spin frustration due to the antiferromagnetic superexchange interaction enhanced by the external pressure.
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Report
(3 results)
Research Products
(12 results)
