Repozytorium publikacji - Politechnika Gdańska

The synthesis, structural, magnetic, thermal, and transport properties are reported for polycrystalline PrIr3. At room temperature PrIr3 displays the rhombohedral space group R-3m and a PuNi3-type structure. At around 70 K a phase transition to a monoclinic C2/m structure is observed and continued cooling reveals temperature independent behavior of the unit cell volume. Further, PrIr3 undergoes a paramagnetic to ferromagnetic transition with Tc = 7.5K. The temperature dependent magnetic susceptibility follows the Curie-Weiss law with a positive Curie-Weiss temperature, and an effective moment that is close to the theoretical effective moment for a free Pr+3 ion. The structural transition introduces further complexity into the behavior of PuNi3-type materials and highlights the importance of temperature-dependent structural studies to complement physical property measurements in intermetallic compounds.

Autorzy

• dr inż. Karolina Górnicka link otwiera się w nowej karcie ,
• dr inż. Michał Winiarski link otwiera się w nowej karcie ,
• Robert J. Cava,
• Michael A. McGuire,
• prof. dr hab. inż. Tomasz Klimczuk link otwiera się w nowej karcie