| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Research Abstract |
We have succeeded in obtaining high-quality polycrystalline samples of perovskite Eu_<1-x>Y_xMnO_3 and Y_<1-x>Y_xMnO_3 by a high pressure technique with using single crystalline precursors of the ambient pressure phase. Complete multiferroic phase diagram of orthorhombic RMnO_3 was established. Furthermore, we have found that the magnetoelectric response is enhanced near the bicritical phase boundary. Single crystals of perovskite YMnO_3 were successfully grown under high pressure with a quasi hydrothermal condition. By using a synchrotron x-ray, we have observed for the first time ferroelectric lattice displacement driven by a magnetic order in YMnO_3.
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