Magnetic Field Induced Vortex Lattice Transition in HgBa${}_2$CuO${}_{4+\delta }$

Jeongseop A. Lee, Yizhou Xin, I. Stolt +3

Measurements of the ${}^{17}$O nuclear magnetic resonance (NMR) quadrupolar spectrum of apical oxygen in HgBa${}_2$CuO${}_{4+\delta }$ were performed over a range of magnetic fields from 6.4…