Direct observation of multiple conduction-band minima in high-performance thermoelectric SnSe

Mario Okawa^*, Yuka Akabane, Mizuki Maeda, Gangjian Tan, Li Dong Zhao, Mercouri G. Kanatzidis, Takeshi Suzuki, Mari Watanabe, Jiadi Xu, Qianhui Ren, Masami Fujisawa, Teruto Kanai, Jiro Itatani, Shik Shin, Kozo Okazaki, Naurang L. Saini, Takashi Mizokawa