POSSIBLE GIANT MAGNETORESISTANCE EFFECT IN LA(1-X)A(X)MNO(3) (A-LI, NA)

Authors
NAKAMURA S NANBA K IIDA S
Citation
S. Nakamura et al., POSSIBLE GIANT MAGNETORESISTANCE EFFECT IN LA(1-X)A(X)MNO(3) (A-LI, NA), Journal of magnetism and magnetic materials, 177, 1998, pp. 884-885
Citations number
4
Categorie Soggetti
Material Science","Physics, Condensed Matter
Journal title
Journal of magnetism and magnetic materials → ACNP
ISSN journal
03048853
Volume
177
Year of publication
1998
Part
2
Pages
884 - 885
Database
ISI
SICI code
0304-8853(1998)177:<884:PGMEIL>2.0.ZU;2-G
Abstract
Perovskite manganites La(1-x)A(x)MnO(3) (A: Li, Na) show a metal-insul ator transition accompanied by the ferromagnetic-paramagnetic transiti on. The resistivity decreases as low as the order of 10(-3) Ohm cm at low temperatures for Na-substituted specimens. Both series of the spec imens have large magnetic moments exceeding 3 mu g/Mn, which are expec ted from the double-exchange model. A rather large magnetoresistance c hange of -12%, at room temperature, was observed for the Na-specimens. (C) 1998 Elsevier Science B.V. All rights reserved.