Theoretical study of the structure of calcium in phases IV and V via ab initio metadynamics simulation
Takahiro Ishikawa, Ayako Ichikawa, Hitose Nagara, Masaaki Geshi, Koichi Kusakabe, and Naoshi Suzuki
Phys. Rev. B 77, 020101(R) (2008) - Published 17 January, 2008