Electronic structure of heavy fermion system CePt<sub>2</sub>In<sub>7</sub> from angle-resolved photoemission spectroscopy

Electronic structure of heavy fermion system CePt₂In₇ from angle-resolved photoemission spectroscopy

Shen Bing^{1, 2}, Yu Li^{1, †}, Liu Kai³, Lyu Shou-Peng^{1, 2}, Jia Xiao-Wen^{1, 4}, Bauer E D⁵, Thompson J D⁵, Zhang Yan^{1, 2}, Wang Chen-Lu^{1, 2}, Hu Cheng^{1, 2}, Ding Ying^{1, 2}, Sun Xuan^{1, 2}, Hu Yong^{1, 2}, Liu Jing^{1, 2}, Gao Qiang^{1, 2}, Zhao Lin¹, Liu Guo-Dong¹, Xu Zu-Yan⁶, Chen Chuang-Tian⁶, Lu Zhong-Yi^{3, ‡}, Zhou X J^{1, 2, 7, §}

Band structure of CePt₂In₇ measured along two high-symmetry momentum cuts. The electric field direction of the incident light is vertical, i.e, along – direction. (a1)–(a3) Measured band structure along the – direction. The location of the momentum cut is shown by the pink arrowed line in the inset of (a1). (b1)–(b3) Measured band structure along – direction. The location of the momentum cut is shown by the pink arrowed line in the inset of (b1). (a1) and (b1) are original data. (a2) and (b2) are second-derivative images of the original data with respect to energy. (a3) and (b3) are second derivative images of the original data with respect to momentum.