Pressure effect on spontaneous magnetization of Cr2Te3 and Cr5Te8

Magnetic properties and low temperature X-ray studies of the weak ferromagnetic monoclinic and trigonal chromium tellurides Cr5Te8

“…[6] assumed that m-Cr 5 Te 8 is isostructural to V 5 Te 8 , which according to our investigation can be ruled out [3]. Shimada et al performed photoemission studies on Cr 5 Te 8 and concluded that Cr 5 Te 8 is an itinerant ferromagnet [8]. We note that the sample investigated by this group showed trigonal symmetry with lattice parameters a ¼ 3:924 Å and c ¼ 6:008 Å .…”

“…A slightly different upper phase boundary for tr-Cr 5 Te 8 of 63.6(6) at% Te was reported by Viswanathan et al [4]. Until know only a few studies were performed on mCr 5 Te 8 and tr-Cr 5 Te 8 regarding their physicochemical properties. The pressure dependence of the spontaneous magnetization of Cr 5 Te 8 measured at 4.2 K was reported for a trigonal sample with lattice parameters a ¼ 3:914 Å and c ¼ 5:998 Å [5].…”

“…Until know only a few studies were performed on mCr 5 Te 8 and tr-Cr 5 Te 8 regarding their physicochemical properties. The pressure dependence of the spontaneous magnetization of Cr 5 Te 8 measured at 4.2 K was reported for a trigonal sample with lattice parameters a ¼ 3:914 Å and c ¼ 5:998 Å [5]. The heat capacities of m-Cr 5 Te 8 and tr-Cr 5 Te 8 show an order-disorder transition of mCr 5 Te 8 to the vacancy ordered Cr 3 Te 4 type structure at 815 K [6,7].…”

“…The pressure dependence of the spontaneous magnetization of Cr 5 Te 8 measured at 4.2 K was reported for a trigonal sample with lattice parameters a ¼ 3:914 Å and c ¼ 5:998 Å [5]. The heat capacities of m-Cr 5 Te 8 and tr-Cr 5 Te 8 show an order-disorder transition of mCr 5 Te 8 to the vacancy ordered Cr 3 Te 4 type structure at 815 K [6,7]. The lattice parameters of m-Cr 5 Te 8 were given with a ¼ 13:535 Å , b ¼ 7:822 Å , c ¼ 11:994 Å and b ¼ 90:4 [6].…”

Electronic structure ofCr1‐δX(X=S,Te)studied by CrYaji1, Kimura2, Hirai3 et al. 2004Phys. Rev. B20060View full textAdd to dashboardCite

“…2 The ordered magnetic moments evaluated from the magnetization measurements show much smaller values such as 2.4-2.7µ B for the Cr 1−δ Te with δ < 0.1, 2.35µ B for Cr 3 Te 4 (δ=0.25) and 2.0µ B for Cr 2 Te 3 (δ=0.33) than those expected from the ionic model. 3,4,5,6,7,8,9,10,11,12,13,14 According to neutrondiffraction studies, the small value of saturation magnetization is partly explained if we take the spin canting into account for δ = 0.125, 0.167 and 0.25. 10 The magnetic moment induced on the Cr ion for δ=0.25 is close to an integral number of Bohr magnetons, suggesting the existence of mixed valence Cr.…”