Magnetoresistance anomalies in the Gd-based alloys

Sampathkumaran, E. V. ; Das, I. (1995) Magnetoresistance anomalies in the Gd-based alloys Physical Review B: Condensed Matter and Materials Physics, 51 (13). pp. 8631-8633. ISSN 1098-0121

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The magnetoresistance (Δρ/ρ) behavior across magnetic ordering temperatures in the Gd alloys, GdCu2Si2, Gd1−xYxNi2Si2, GdPt2Si2, and GdPd2In, is presented. In all of these alloys, except GdCu2Si2, Δρ/ρ is negative in the paramagnetic state and its magnitude grows as the respective magnetic ordering temperatures are approached. On the other hand, Δρ/ρ is positive in the case of GdCu2Si2 both above and below the Néel temperature. The findings noted for the Gd alloys containing Ni, Pt, and Pd are interesting, presumably arising from spin fluctuations from the transition-metal d bands.

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ID Code:45639
Deposited On:29 Jun 2011 03:20
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