Title :
Magnetic properties of two new compounds: Pr2Ni3 Si5 and Ho2Ni3Si3
Author :
Mazumdar, Chandan ; Nagarajan, R. ; Gupta, L.C. ; Vijayaraghavan, R. ; Godart, C. ; Padalia, B.D.
Author_Institution :
Dept. of Phys., Indian Inst. of Technol., Bombay, India
fDate :
11/1/1994 12:00:00 AM
Abstract :
Formation of two more new materials, Pr2Ni3Si5 and Ho2Ni3 Si5, 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 Pr2Ni3Si5 orders antiferromagnetically at TN~8.5 K and Ho2Ni3 Si5 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
Keywords :
antiferromagnetic materials; holmium alloys; magnetic moments; magnetic susceptibility; nickel alloys; paramagnetic materials; praseodymium alloys; silicon alloys; 5 to 300 K; Curie-Weiss law; Ho2Ni3Si3; Pr2Ni3Si5; U2Co3Si5-type structure; antiferromagnet; effective moment; free trivalent rare earth ion; magnetic properties; magnetic susceptibility; orthorhombic; paramagnetic state; space group; Antiferromagnetic materials; Crystalline materials; Crystallization; Earth; Magnetic materials; Magnetic properties; Magnetic susceptibility; Paramagnetic materials; Temperature distribution; Temperature measurement;
Journal_Title :
Magnetics, IEEE Transactions on
