Transport properties of metallic La(1-x)Sr(x)CoO(3) (0.30 <= x <= 0.50) ferromagnet
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
View Archive Info| Field | Value | |
| Title |
Transport properties of metallic La(1-x)Sr(x)CoO(3) (0.30 <= x <= 0.50) ferromagnet
|
|
| Creator |
Mandal, P
Hassen, A Choudhury, Pranab |
|
| Subject |
Electronics
|
|
| Description |
To elucidate the nature of transport mechanism below Curie temperature T(C), we have analyzed the temperature dependence of resistivity (rho) and thermopower (S) of metallic La(1-x)Sr(x)CoO(3) (0.30 <= x <= 0.50). At low temperature well below T(C) both rho and S exhibit T(2) behavior whereas over a temperature interval just below T(C), they show a T(4) dependence due to the scattering of charge carriers by magnetic fluctuations. These fluctuations can be suppressed by a magnetic field, leading to a negative bulk magnetoresistance in cobaltates and in other itinerant ferromagnets such as manganites and CrO(2). (c) 2006 American Institute of Physics.
|
|
| Publisher |
American Institute of Physics
|
|
| Date |
2006-11-15
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://cgcri.csircentral.net/37/1/pranab.pdf
Mandal, P and Hassen, A and Choudhury, Pranab (2006) Transport properties of metallic La(1-x)Sr(x)CoO(3) (0.30 <= x <= 0.50) ferromagnet. Journal of Applied Physics, 100 (10). ISSN 0021-8979 |
|
| Relation |
http://cgcri.csircentral.net/37/
|
|