2010 Fiscal Year Final Research Report
Study on basic process and applications of radiation-induced insu ator-meta transition
| Project/Area Number |
21760704
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Nuclear engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2010
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| Keywords | 永続的光伝導 / ペロブスカイト型マンガン酸化物 / 放射線照射 / 電子相関 / 軌道秩序 / 電荷整列 |
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| Research Abstract |
We investigated persistent photoconductive (PPC) behavior of various transition-metal oxides under X-ray irradiation. We clarified that the orbital ordered state is the prerequisite for the PPC. In addition, it was revealed that particle size or grain boundary significantly influence the PPC behavior in the polycrystalline samples. In order to apply the PPC to radiation detectors, control on the particle size is very important.
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