| Project/Area Number |
25790041
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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 |
Applied materials
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| Research Institution | Osaka University |
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Principal Investigator |
FUJIWARA Kohei 大阪大学, 産業科学研究所, 助教 (50525855)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 酸化物エレクトロニクス / 抵抗変化メモリー / 電界効果トランジスタ / 酸化還元 / 電界効果デバイス |
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| Outline of Final Research Achievements |
Strongly correlated electrons in transition-metal oxides produce a rich variety of electronic phases including solid and liquid states of charges, spins and orbitals. These phases often compete with each other in a delicate balance, giving rise to dramatic phase changes upon application of external stimuli. In this work, the electric-field control of the electronic phases in charge-ordered LuFe2O4 was attempted. We observed a current switching effect in the 3D charge-ordered phase by applying an electric-field stress. By fabricating an electric-double-layer transistor structure, we also observed conductivity modulation due to electrostatic carrier doping.
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