Hole-doping and pressure effects on the metal-insulator transition in single crystals of Y_1-xCa_xTiO₃ (0.37 ≤ x ≤ 0.41)

Masami Tsubota, Fumitoshi Iga, Toshihiro Nakano, Kazuyuki Uchihira, Souichiro Kura, Masaki Takemura, Yoshio Bando, Kazunori Umeo, Toshiro Takabatake, Eiji Nishibori, Masaki Takata, Makoto Sakata, Kenichi Kato, Yasuo Ohishi