LOW-FREQUENCY OPTICAL-RESPONSE IN EPITAXIAL THIN-FILMS OF LA0.67CA0.33MNO3 EXHIBITING COLOSSAL MAGNETORESISTANCE

Authors
RAJESWARI M CHEN CH GOYAL A KWON C ROBSON MC RAMESH R VENKATESAN T LAKEOU S
Citation
M. Rajeswari et al., LOW-FREQUENCY OPTICAL-RESPONSE IN EPITAXIAL THIN-FILMS OF LA0.67CA0.33MNO3 EXHIBITING COLOSSAL MAGNETORESISTANCE, Applied physics letters, 68(25), 1996, pp. 3555-3557
Citations number
8
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
68
Issue
25
Year of publication
1996
Pages
3555 - 3557
Database
ISI
SICI code
0003-6951(1996)68:25<3555:LOIETO>2.0.ZU;2-W
Abstract
We report measurements of the low-frequency optical response in epitax ial thin films of La0.67Ca0.33MnO3 in the temperature range covering b oth the ferromagnetic metallic state and the paramagnetic insulating s tate. We observe a bolometric optical response in fully oxygenated fil ms of the above composition as well as in oxygen deficient films. In b oth types of samples, the optical response is thermal in nature as ind icated by its proportionality with the temperature derivative of the r esistance dR/dT. (C) 1996 American Institute of Physics.