Room temperature ultrahigh magnetoresistance in La 0.67Sr 0.33MnO 3 thin films with ordered nanometer structure

We report the preparation and investigation of ferromagnetic La 0.67Sr 0.33MnO 3 (LSMO) thin films with orthogonally (along (110) and (1ı̄0)) distributed nanometer-scale cracks. When the density of cracks reaches ∼10 4 cm −1, the magnetoresistance MR=( R H− R 0)/ R 0>−30% was observed in the magn...

Full description

Saved in:
Bibliographic Details
Published inSolid state communications Vol. 131; no. 3; pp. 271 - 274
Main Authors Zhang, F.C, Gong, W.Z, Cai, C, Xu, B, Qiu, X.G, Vanfleet, R, Chow, L, Zhao, B.R
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2004
Subjects
A. Magnetic films and multilaylers
A. Nanostructures
B. Epitaxy
D. Electronic transport
75.47.−m
A. Nanostructures
B. Epitaxy
75.47.Lx
D. Electronic transport
A. Magnetic films and multilaylers
Online AccessGet full text

Cover

More Information
Summary:We report the preparation and investigation of ferromagnetic La 0.67Sr 0.33MnO 3 (LSMO) thin films with orthogonally (along (110) and (1ı̄0)) distributed nanometer-scale cracks. When the density of cracks reaches ∼10 4 cm −1, the magnetoresistance MR=( R H− R 0)/ R 0>−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.
ISSN:0038-1098
1879-2766
DOI:10.1016/j.ssc.2004.03.057