Magnetic properties of two new compounds: Pr2Ni3Si5 and Ho2Ni3Si3

Mazumdar, C. ; Nagarajan, R. ; Gupta, L. C. ; Vijayaraghavan, R. ; Godart, C. ; Padalia, B. D. (1994) Magnetic properties of two new compounds: Pr2Ni3Si5 and Ho2Ni3Si3 IEEE Transactions on Magnetics, 30 (6). pp. 4960-4962. ISSN 0018-9464

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Formation of two more new materials, Pr2Ni3 Si5 and Ho2Ni3Si3, of the series, R2Ni3Si5 (R=rare earth and Y) and their magnetic properties are reported here. These materials crystallize in the orthorhombic U2Co 3Si5-type structure (space group Ibam). Magnetic susceptibility measurement in the temperature range 5 K-300 K show that the compound Pr2Ni3 Si5 orders antiferromagnetically at TN~8.5 K and Ho2Ni3Si3 at ~6 K. Considering TN(Gd2Ni 3Si5) ~15 K, TN(Pr2Ni3 Si5) ~8.5 K is rather high. The magnetic susceptibility of both of the materials, in the paramagnetic state, follows a Curie-Weiss law with effective moment close to that of the corresponding free trivalent rare earth ion.

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