1. Toyota Central R&D Labs., Inc., Nagakute 480-1192, Japan
2. Aichi Institute of Technology (AIT), Toyota 470-0392, Japan
3. Institute of Materials and Systems for Sustainability (IMaSS), Nagoya University, Nagoya 464-8601, Japan
4. Institute of Advanced Technology, ULVAC, Inc., Chigasaki 253-8543, Japan
5. Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw, Poland