Constraints on magnetism and correlations in RuO${}_2$ from lattice dynamics and Mössbauer spectroscopy

George Yumnam, Parul R. Raghuvanshi, John D. Budai +13

We provide experimental evidence for the absence of a magnetic moment in bulk RuO${}_2$, a candidate altermagnetic material, by using a combination of Mössbauer spectroscopy, nuclea…