Ultrafast dynamics in the Lifshitz-type 5$d$ pyrochlore antiferromagnet Cd${}_2$Os${}_2$O${}_7$

Inho Kwak, Min-Cheol Lee, Byung Cheol Park +7

We investigate the ultrafast dynamics of Cd${}_2$Os${}_2$O${}_7$, a prototype material showing a Lifshitz-type transition as a function of temperature. In the paramagnetic metallic state…