Normal State Resistivity of Underdoped YBa_2Cu_3O_x Thin Films and La_(2-x)Sr_xCuO_4 Ultra-Thin Films under Epitaxial Strain

摘要

The normal state resistivity of high temperature superconductors can be probed in the region below T_c by suppressing the superconducting state in high magnetic fields. Here we present the normal state properties of YBa_2Cu_3O_x thin films in the underdoped regime and the normal state resistance of La_(2-x)Sr_xCuO_4 thin films under epitaxial strain, measured below T_c by applying pulsed fields up to 60 T. We interpret these data in terms of the recently proposed ID quantum transport model with the ID paths corresponding to the charge stripes.