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1995 | 88 | 6 | 1103-1112
Article title

Magnon Drag Effect on Resistivity and Thermoelectric Power of Semimetallic Antiferromagnet USb

Content
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Languages of publication
EN
Abstracts
EN
Resistivity ρ(T) and absolute thermoelectric power S(Τ) have been measured for USb single crystals characterized by different residual resis­tivity ratios, RRR = ρ(300 K)/ρ(4.2 K). A 50 μV/K peak of S(Τ) observed at 40 K for high RRR crystal vanishes for low RRR one. The ρ ∝ Τ^{4} depen­dence observed below 40 K changes to the ρ ∝ Τ^{5/2} one. These variations are ascribed to reduction of the magnon drag effect by an increased inco­herent magnetic scattering of carriers, possibly induced by a small change of composition. Resistivity anomaly is analysed above the antiferromagnetic transition temperature T_{N}. We have found that resistivity decreases as tlnt in the range 0.02 ≤ t ≤ 0.35, where t = (Τ - T_{N})/T_{N}. It is ascribed to a semimetallic character of this compound.
Keywords
Year
Volume
88
Issue
6
Pages
1103-1112
Physical description
Dates
published
1995-12
received
1994-08-23
(unknown)
1995-06-19
References
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv88z606kz
Identifiers
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