| Project/Area Number |
15K13519
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Condensed matter physics II
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Research Collaborator |
Misawa Kazuki 名古屋大学, 理学研究科
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | スピンエレクトロニクス / 強相関電子系 / 半導体物性 / 超伝導材料 |
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| Outline of Final Research Achievements |
In this research, we have investigated the physical properties of Pd oxides consisting of divalent Pd ions, and examined possible existence of tetravalent Pd ion induced by doping. We have further examined a trace of superconductivity at low temperatures. Also, we have introduced some magnetic ions to search for a new electronic phase of spin gapless semiconductor.
We have successfully synthesized CaCu2.4Pd0.6O4 in which 80% of Pd ions are substituted in CaPd3O4. This means that we have almost synthesized a new copper oxide of CaCu3O4. We have further doped electrons by substituting Y or La for Ca, and the doping level is in the verge of metal-insulator transition. In Pb0.9Ag0.1Pd0.9Ni0.1O2, we have found that anomalously large paramagnetic behavior is induced by 10% Ni substitution.
These results contribute to deepening of the understanding of solid state physics and solid state chemistry of Pd oxides.
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