Ultraquantum magnetoresistance in the Kramers-Weyl semimetal candidate β-Ag2Se

Cheng Long Zhang, Frank Schindler, Haiwen Liu, Tay Rong Chang, Su Yang Xu, Guoqing Chang, Wei Hua, Hua Jiang, Zhujun Yuan, Junliang Sun, Horng Tay Jeng, Hai Zhou Lu, Hsin Lin, M. Zahid Hasan, X. C. Xie, Titus Neupert, Shuang Jia