| Project/Area Number |
12305022
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | KYUSHU UNIVERSITY |
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Principal Investigator |
TAKEDA Kazuyoshi KYUSHU UNIVERSITY, Faculty of Engineering, Prof., 大学院・工学研究院, 教授 (10029548)
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| Co-Investigator(Kenkyū-buntansha) |
IDOGAKI Toshihiro KYUSHU UNIVERSITY, Faculty of Engineering, Prof., 大学院・工学研究院, 教授 (40038013)
HITAKA Masako KYUSHU UNIVERSITY, Faculty of Engineering, Assist., 大学院・工学研究院, 助手 (00264094)
KAWAE Tatsuya KYUSHU UNIVERSITY, Faculty of Engineering, Assist.Prof., 大学院・工学研究院, 助教授 (30253503)
TANAKA Akinori KYUSHU UNIVERSITY, Faculty of Engineering, Assist., 大学院・工学研究院, 助手 (80274512)
美藤 正樹 九州大学, 大学院・工学研究院, 助手 (60315108)
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| Project Period (FY) |
2000 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥39,270,000 (Direct Cost: ¥38,100,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2003: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2002: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2001: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2000: ¥34,200,000 (Direct Cost: ¥34,200,000)
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| Keywords | Electronic Properties / High Pressure / High Magnetic Field / Low Temperature / Organic Magnets / Non-Fermi Liquid / Magnetic Behavior / Quantum Critical Point / 純有機磁性体 / 量子臨界 |
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| Research Abstract |
The first realization of the genuine organic ferromagnet had to await the synthesis of b-p-NPNN in 1990. The mechanism of magnetic interactions and high ordering temperature has not been clear now. We have marked the highest value of the magnetic ordering temperature of some 70K with a weak-ferromagnetic organic radical cry stal(the ordering temperature is 36K at ambient pressure) by the application of the pressure up to 1.6GPa.
The Non-Fermi liquid behavior in the non-magnetic quadrupolar system has been found in the present study on(Pr-La)Pb3 system for the dilute limit of Pr.
On the contrary for the wide range of the Prconcentration, the glassy behavior of the quadrupolar moment has been observed with the characteristic 2-level model as the Anderson's glass theory.
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