Issue |
Europhys. Lett.
Volume 69, Number 3, February 2005
|
|
---|---|---|
Page(s) | 454 - 460 | |
Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
DOI | https://doi.org/10.1209/epl/i2004-10358-3 | |
Published online | 24 December 2004 |
Large magnetoresistance in the magnetically ordered state
as well as in the paramagnetic state near 
in an intermetallic compound,
Tata Institute of Fundamental Research - Homi Bhabha Road Colaba, Mumbai-400005, India
Received:
12
October
2004
Accepted:
22
November
2004
We report the response of electrical resistivity ρ to the
application of magnetic fields (H) up to 140 in the
temperature interval 1.8–300
for the compound
, ordering antiferromagnetically below
150
. We find that there is an unusually large decrease of
ρ for moderate values of H in the close vicinity of room
temperature, uncharacteristic of paramagnets, with the magnitude
of the magnetoresistance increasing with decreasing temperature
as though the spin-order contribution to ρ were temperature
dependent. In addition, this compound exhibits
giant-magnetoresistance behaviour at rather high temperatures
(above 77
) in the magnetically ordered state due to a
metamagnetic transition.
PACS: 75.47.De – Giant magnetoresistance / 72.15.-v – Electronic conduction in metals and alloys / 75.50.-y – Studies of specific magnetic materials
© EDP Sciences, 2005
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.