| Project/Area Number |
24760534
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical properties of metals
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
OHTA Hiroto 東京農工大学, 工学(系)研究科(研究院), 助教 (60546985)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | 電子・磁気物性 / 層状化合物 / 強磁性-反強磁性転移 / 巨大磁気抵抗効果 / 遍歴電子強磁性 / 遍歴電子磁性体 / 異方的超伝導体 |
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| Research Abstract |
Among layered compounds with cobalt pnictogen layers, LnCoAsO (Ln: lanthanoids) shows itinerant electronic ferromagnetism. Sr2ScO3CoAs, which has 2 times larger intra-layer distance, also shows ferromagnetism, showing that itinerant electronic ferromagnetism realizes in layered compounds despite of the intra-layer distance.
Ferromagnetic-antiferromagnetic transition occurs in LnCoAsO, but its mechanism has been still unresolved. In my study, Sr2(Sc,V)O3CoAs has been found to show ferromagnetic-antiferromagnetic transition. This fact shows that such transition occurs in a condition that localized magnetic moments are sandwiched by itinerant electronic ferromagnetic layers.
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