Low-energy charge dynamics of La0.7Ca0.3MnO3 thin films

Authors
Kida, N Hangyo, M Tonouchi, M
Citation
N. Kida et al., Low-energy charge dynamics of La0.7Ca0.3MnO3 thin films, J MAGN MAGN, 226, 2001, pp. 818-820
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
226
Year of publication
2001
Part
1
Pages
818 - 820
Database
ISI
SICI code
0304-8853(200105)226:<818:LCDOLT>2.0.ZU;2-A
Abstract
Direct estimations of the low-energy (0.5-6meV) complex optical spectrum in La0.7Ca0.3MnO3 thin films have been investigated using terahertz time-doma in spectroscopy. At low temperature. a clear Drude-term appears. Using the simple Drude model. we have estimated the scattering rate and the plasma fr equency in the ferromagnetic metallic ground-state. Low-energy charge dynam ics are briefly discussed on the basis of present results. (C) 2001 Publish ed by Elsevier Science B.V.