| Project/Area Number |
24840003
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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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 | Tohoku University |
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Principal Investigator |
NORIYUKI Kabeya 東北大学, 理学(系)研究科(研究院), 助教 (70633642)
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| Project Period (FY) |
2012-08-31 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 量子臨界現象 / フラストレーション / 強相関電子系 / 希土類化合物 / 圧力下物性測定 / 元素置換系 |
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| Research Abstract |
This Research is about quantum critical point (QCP), which is the critical point caused by quantum fluctuation. We have used pressure and substitution of element as the method of approach to the QCPs. To obtain the information of quantum critical frustration, we have developed a handmade heat capacity measurement system. On the approach to the QCPs by pressure, an anomaly of electrical resistivity associated antiferromagnetic transition is found. On the approach to the QCPs by substitution of the element, we have succeed to make the single crystalline samples located at the vicinity of the QCP. the sample shows the logarithmic increase of the specific heat at low temperature region.
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