Non-conventional infrared conductivity of La2CuO4.06 and Pr0.7Sr0.2Ca0.1MnO3

Authors
Gervais, F Daulan, C Maignan, A Lobo, RPSM
Citation
F. Gervais et al., Non-conventional infrared conductivity of La2CuO4.06 and Pr0.7Sr0.2Ca0.1MnO3, INT J MOD B, 12(29-31), 1998, pp. 3393-3396
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
ISSN journal
02179792 → ACNP
Volume
12
Issue
29-31
Year of publication
1998
Pages
3393 - 3396
Database
ISI
SICI code
0217-9792(199812)12:29-31<3393:NICOLA>2.0.ZU;2-8
Abstract
Pr0.7Sr0.2Ca0.1MnO3 displays a ferromagnetic metallic-like to non-ferromagn etic insulator-like phase transition near 200 K and shows colossal magneto- resistance. The temperature evolution of its optical conductivity was measu red and the results were compared to those of La2CuO4.06 which is a superco nductor below 34 K. The growth of a peak in the conductivity around 10 meV upon cooling Pr0.7Sr0.2Ca0.1MnO3 strongly suggests a trapped-polaron contri bution to the conductivity.