Journal
JOURNAL OF MATERIALS SCIENCE
Volume 50, Issue 17, Pages 5723-5728Publisher
SPRINGER
DOI: 10.1007/s10853-015-9116-8
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Funding
- Russian Science Foundation [14-22-00004]
- Russian Science Foundation [14-22-00004] Funding Source: Russian Science Foundation
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GdCuSi has been studied by structural, magnetic, magneto-thermal, and magneto-transport measurements. The compound crystallizes in the Ni2In-type hexagonal structure. Magnetic measurements show antiferromagnetic ordering at T (N) = 14.2 K and a magnetic anomaly near 5 K, which are confirmed by different measurements. Magnetocaloric effect (MCE) has been estimated from both magnetization and heat capacity data and it shows a change in sign below T (N). Similar to MCE, magnetoresistance (MR) data also show sign change below T (N). The compound shows large MCE and MR near its ordering temperature. The sign change in MCE and MR is attributed to the non-collinear antiferromagnetic structure of the compound. The theoretical calculations suggest competition of ferromagnetic and antiferromagnetic interactions, which causes non-collinear magnetic structure in this compound.
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