Entangled orbital, spin, and ferroelectric orders in $p$-electron magnet CsO${}_2$

Ryota Ono, Ravi Kaushik, Sergey Artyukhin +3

Alkali superoxides differ from conventional transition metal magnets, exhibit magnetism from partially occupied oxygen molecular ${\pi }^{\ast }$-orbitals. Among them, CsO${}_2$ stands out for…