Magnetism and Pressure-Induced Superconductivity of Checkerboard-Type Charge-Ordered Molecular Conductor β-(meso-DMBEDT-TTF)2X (X = PF6 and AsF6) oleh Yutaka Nishio, Yoshiya Uwatoko, Kazuyuki Matsubayashi, Hiroyuki Tajima, Motoi Kimata, Youichi Murakami, Kensuke Kobayashi, Hironori Nakao, Reiji Kumai, Akiko Nakao, Kazuyuki Takahashi, Akira Ueda, Takayuki Isono, Sanguchul Lee, Tatsuya Shimokawa, Takahisa Shikama, Koji Kajita, Hatsumi Mori