Phase shift of oscillatory magnetoresistance in a double-cross thin film structure of La 0.3 Pr 0.4 Ca 0.3 MnO 3 via strain-engineered elongation of electronic domains

The subtle balance between the competing electronic phases in manganites due to complex interplay between spin, charge, and orbital degrees of freedom could allow one to modify the properties of electronically phase separated systems. In this paper, we show that the phase shift in the oscillatory magnetoresistance $\ensuremath{\rho}(\ensuremath{\theta})$ can be modified by engineering strain driven elongation of electronic domains in ${\mathrm{La}}_{0.3}{\mathrm{Pr}}_{0.4}{\mathrm{Ca}}_{0.3}{\mathrm{MnO}}_{3}$ (LPCMO) thin films. Strain-driven elongation of magnetic domains can produce different percolation paths and hence different anisotropic magnetoresistance responses. This tunability provides a unique control that is unattainable in conventional $3d$ ferromagnetic metals and alloys.