Author/Authors :
Zhang، نويسنده , , F.C and Gong، نويسنده , , W.Z and Cai، نويسنده , , C and Xu، نويسنده , , B and Qiu، نويسنده , , X.G and Vanfleet، نويسنده , , R and Chow، نويسنده , , L and Zhao، نويسنده , , B.R، نويسنده ,
Abstract :
We report the preparation and investigation of ferromagnetic La0.67Sr0.33MnO3 (LSMO) thin films with orthogonally (along (110) and (1ı̄0)) distributed nanometer-scale cracks. When the density of cracks reaches ∼104 cm−1, the magnetoresistance MR=(RH−R0)/R0>−30% was observed in the magnetic fields ≤200 Oe and temperature range from 5 to >300 K. The discussion about such unique feature will be done based on the spin-polarized electron tunneling and spin scattering.
Keywords :
A. Magnetic films and multilaylers , B. Epitaxy , D. Electronic transport , A. Nanostructures
