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    • Keywords


      Intermetallics; crystal structure; magnetic properties; electric properties; electronic structure calculations.

    • Abstract


      RAgSn2 compounds, where R = Y, Tb, Dy, Ho and Er, were synthesized by arc-melting and subsequent annealing at 870 K. The formation of cubic phases with Cu3Au-type structure (space group 𝑃𝑚$\bar{3}$𝑚) was studied. Magnetic property measurements showed that in paramagnetic state, the compounds with magnetic rareearth atoms are Curie–Weiss paramagnets and order antiferromagnetically at low temperatures. YAgSn2 is a Pauli paramagnet in 100–300 K temperature range. The electrical properties of RAgSn2 compounds were investigated by means of electrical resistivity and Seebeck coefficient measurements in 4.2–300 K temperature range. All investigated compounds exhibit metallic type of conductivity. Electronic structure calculations based on full potential linearized augmented plane wave (FLAPW)method is also carried out to probe themagnetic and electronic structures of RAgSn2 compounds. Comparisons between experimental data and calculations are discussed.

    • Author Affiliations


      L Romaka1 V V Romaka2 I Lototska1 A Szytula3 B Kuzhel1 A Zarzycki3 E K Hlil4 D Fruchart4

      1. Department of Inorganic Chemistry, Ivan Franko Lviv National University, Kyryl and Mephodiy Street 6, 79005, Lviv, Ukraine
      2. Department of Materials Engineering and Applied Physics, Lviv Polytechnic National University, Ustyyanovycha Street 5, 79013, Lviv, Ukraine
      3. Institute of Physics, Jagiellonian University, Reymonta 4, 30059 Krakow, Poland
      4. Institut Néel, CNRS et Université Joseph Fourier, BP 166, F-38042 Grenoble cedex 9, France
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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