Magnetic properties of the ordered VPt3 alloy. - II. — Critical behaviour around the Curie point

Magnetic properties of the ordered VPt3 alloy. I. — Ferromagnetic behaviour

“…Furthermore, the Curie temperatures T, determined by the first method (paper II, [19]) are in satisfactory agreement with those reported above : Tc = (240.0 + 0.1) K for the VPt3 (1) sample, by means of (a)2.00 versus (H/a)0.84 plots;…”

“…In this paper (paper I), as in paper II [19], we restrict to the magnetic properties of the ordered VPt3 alloy. A detailed discussion about the calorimetric and magnetic properties, as a function of concentration of both the ordered and disordered states of the V-Pt system, will be given in our forthcoming publication [18].…”

“…Paper II [19] deals with the critical behaviour of VPt3 in each of both ordered states. The critical behaviour of each VPt3 sample around its Curie point T,, is investigated in the frame of the scaling theory.…”

“…(Grenoble, France). The moderate field (0 H 20 k0e) magnetization measurements in the critical temperature range of each VPt3 sample around its Curie point (from 195 K to 271 K for VPt3 (1) and from 188 K to 235 K for VPt3 (2), see paper II, [19]) were also performed with the Foner type vibrating sample magnetometer. All sets of apparatus were calibrated against Gd203 [26] or Ni [27] standards.…”

“…The determination of Tc by the first method, will be fully described in paper II [19], paper dealing with the critical phenomena investigations around the Curie point Tc of each ordered VPt3 sample.…”