Mott Gap Softening Coinciding with Spin Correlations Collapse in a-RuCl3

Wei Yue, Xiaohu Zheng, Chongli Yang +2

The Mott insulator a-RuCl3, featuring the intertwined interplay of spin-orbit coupling (SOC) and Kitaev spin correlations, provides an unparalleled platform for probing quantum man…