Structure and Magnetic Properties of CePtZn

Abstract

The intermetallic compound CePtZn was synthesized from the elements in a sealed tantalum tube by induction melting and structurally characterized by powder and single crystal X-ray diffractometer data: TiNiSi-type, space group Pnma, a = 706.89(19), b = 435.08 (15)

Structure and Properties of Dimorphic CePdZn

“…For both compounds studied here, χ increases with decreasing temperature. Down to 3.1 K, the H = 10 kOe susceptibility data give no hint for mag- Ag, Au) [44] and CePtZn [13]. It is important to note that the susceptibility χ m (measured at 10 kOe) of β-CePdZn at 3 K is almost four times larger than that determined for α-CePdZn.…”

Cerium intermetallics with TiNiSi-type structure

“…For the heavier homologue CePtZn [20] no magnetic ordering was observed in susceptibility or heat capacity measurements down to 2 K. The inverse magnetic susceptibility can be described by the Curie-Weiss law resulting in an effective magnetic moment of μ eff = 2.47(1) μ B per Ce atom. This clearly indicates trivalent cerium.…”

“…Addition of an excess of these elements indeed helps for the formation of the phases, but purity of the material cannot be guaranteed. A striking example is the synthesis of CePtZn [20,21], where zinc already boils (1180 K) before platinum melts (2045 K) [22].…”

Dimorphism in the REPdZn series

“…Besides the intensive structural work on these materials, also first property investigations have been carried out. CePtZn [5,10] is a dense Kondo system with antiferromagnetic ordering at T N ¼ 1.7 K. CeNiZn [6] is an intermediate-valent cerium compound, EuAuZn [7] orders ferromagnetically at 51.1 K, and YbPtZn [3] exhibits an onset of a heavy fermion state, which orders magnetically at 1.35 K. SmPtZn [11] shows a comparatively high Curie temperature of 48 K.…”