Giant magnetoresistance in the intermetallic compound
- 20 December 2000
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 63 (2), 024426
- https://doi.org/10.1103/physrevb.63.024426
Abstract
We have measured the transverse resistance of an intermetallic compound in pulsed high magnetic fields up to 25 T. Giant magnetoresistance is observed due to the field-induced magnetic transition from the antiferromagnetic to the intermediate phase at low temperatures. The temperature dependence of magnetoresistance shows a dip at the Curie temperature. The dip can be explained using a simple model of de Gennes and Friedel based on magnetic critical scatterings. The normal Hall coefficient is found to show a striking change at the transition, suggesting that the giant magnetoresistance is caused by the change of the carrier concentration.
Keywords
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