| Budget Amount *help |
¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Research Abstract |
For calcium we have succeeded in predicting new high pressure phases V and VI, and also in clarifying that the phase III with simple cubic structure thermodynamically stabilizes at the temperatures of 10-300 K. For gold, we have predicted that the fcc structure with ABC stacking of the close-packed layer transforms into the ABCACB stacking structure at around 400 GPa. By applying our first-principles genetic algorithm code we have succeeded in identifying the crystal structures of phases V and VI of yttrium. As for superconductivity of gold and its alloys we have shown that the superconducting transition temperature TC of pure gold is quite low (～0.04 μK), but by alloying gold with indium TC dramatically increases to 0.1K for Au_<0.875>In_<0.125>.
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