Room temperature ultrahigh magnetoresistance in La0.67Sr0.33MnO3 thin films with ordered nanometer structure
Abbreviated Journal Title
Solid State Commun.
magnetic films and multilaylers; nanostructures; epitaxy; electronic; transport; LOW-FIELD MAGNETORESISTANCE; GRAIN-BOUNDARIES; JUNCTIONS; LA0.7CA0.3MNO3; FERROMAGNET; Physics, Condensed Matter
We report the preparation and investigation of ferromagnetic La0.67Sr0.33MnO3 (LSMO) thin films with orthogonally (along (110) and (1 (1) over bar0)) distributed nanometer-scale cracks. When the density of cracks reaches similar to10(4) cm(-1), the magnetoresistance MR = (R-H - R-0)/R-0 > - 30% was observed in the magnetic fields less than or equal to200 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, (C) 2004 Elsevier Ltd. All rights reserved.
Solid State Communications
"Room temperature ultrahigh magnetoresistance in La0.67Sr0.33MnO3 thin films with ordered nanometer structure" (2004). Faculty Bibliography 2000s. 4919.