Effect of complex magnetic structure on the magnetocaloric and magneto-transport properties in GdCuSi

Sachin Gupta, K. G. Suresh, A. V. Lukoyanov

    Research output: Contribution to journalArticle

    17 Citations (Scopus)

    Abstract

    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 TN = 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 TN. Similar to MCE, magnetoresistance (MR) data also show sign change below TN. 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.

    Original languageEnglish
    Pages (from-to)5723-5728
    Number of pages6
    JournalJournal of Materials Science
    Volume50
    Issue number17
    DOIs
    Publication statusPublished - 2015 Sep 12

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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