Spin correlations and colossal magnetoresistance in HgCr${}_2$Se${}_4$

Chaojing Lin, Changjiang Yi, Youguo Shi +4

This study aims to unravel the mechanism of colossal magnetoresistance (CMR) observed in n-type HgCr${}_2$Se${}_4$, in which low-density conduction electrons are exchange-coupled to a…