Two-component uniform spin susceptibility in superconducting HgBa${}_2$CuO${}_{4+\delta }$ single crystals determined with ${}^{63}$Cu and ${}^{199}$Hg NMR

Jürgen Haase, Damian Rybicki, Charles P. Slichter +4

${}^{63}$Cu and ${}^{199}$Hg NMR shifts for an optimally and underdoped HgBa${}_2$CuO${}_{4+\delta }$ single crystal are reported, and the temperature dependence dictates a two-component descr…