Das, I. ; Sampathkumaran, E. V. ; Vijayaraghavan, R. (1991) Possible evidence for an energy gap below the Néel temperature in ternary rare-earth compounds Physical Review B: Condensed Matter and Materials Physics, 44 (1). pp. 159-162. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v44/i1/p159_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.44.159
Abstract
Electrical-resistivity (ρ) behavior in the vicinity of the Néel temperature (TN) of the pseudoternary alloys RCu2−xNixSi2 (R=Pr, Gd, and Dy) and R1−xLaxCu2Si2 (R=Pr and Gd) is reported. There is an increase in ρ just below TN in several alloys, followed by the usual decrease at lower temperatures due to the loss of spin-disorder contribution. We attribute this rise in ρ to the formation of an energy gap at the Fermi surface due to antiferromagnetic ordering.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 45641 |
| Deposited On: | 29 Jun 2011 03:17 |
| Last Modified: | 29 Jun 2011 03:17 |
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