Relation of spin and charge dynamics in HTSCs

The anisotropic resistivity components of YBa2Cu4O8 have been measured from 0 to 900 K. YBa2Cu4O8 is an underdoped, genuinly untwinned, and stoichiometric high-temperature superconductor. The plane resistivity ρ{variant}a reveals a strong correlation with the spin dynamics. © 1994.