Pu239 nuclear magnetic resonance in the candidate topological insulator PuB4
Pu239 nuclear magnetic resonance in the candidate topological insulator PuB4
We present a detailed nuclear magnetic resonance (NMR) study of ${}^{239}$Pu in bulk and powdered single-crystal plutonium tetraboride (PuB$_4$), which has recently been investigated as a potential correlated topological insulator. This study constitutes the second-ever observation of the ${}^{239}$Pu NMR signal, and provides unique on-site sensitivity to the rich $f$-electron …