Charge-carrier density collapse in La0.67Ca0.33MnO3 and La0.67Sr0.33MnO3 epitaxial thin filmsW. Westerburg, F. Martin, P. J.M. van Bentum, J. A.A.J. Perenboom and G. JakobEur. Phys. J. B, 14 3 (2000) 509-513DOI: https://doi.org/10.1007/s100510051059