The Cr-Te (Chromium-Tellurium) System

Structural and compositional investigations of vapour grown CdTe:Cr single crystals

“…The external ampoule was also evacuated to about 10 À 2 Pa and attached to a long quartz rod. The growth crucible was placed into the two-zone horizontal resistance furnace and gradually heated up to 1300 1C, followed by a 30 min soak at this temperature to insure complete melting of chromium telluride alloys, of which the highest melting point is 1283 1C according to the Cr-Te phase diagram [7]. In order to enhance the uniformity of the charge synthesis process and for better melt mixing, the crucible was rotated during the whole process at a velocity of 10 rpm by means of the electric motor connected to the quartz rod through the flexible link bar.…”

“…Thermodynamical data for the Cd-Cr-Te ternary system are also not available. According to the Cr-Te phase diagram, given in [7], formation of variety of intermetallic chromium telluride compounds is possible in CdTe host matrix, depending on the composition and technological condition of the synthesis and crystal growth processes. Some of them (CrTe, Cr 1 À x Te and Cr 3 Te 4 ) are ferromagnetic at room temperature [8] and could influence the magnetic properties of Cr-doped CdTe giving rise to high Curie temperature.…”

Microstructure, magnetic, and spin-dependent transport properties of (Zn,Cr)Te films fabricated by magnetron sputtering

“…For sample A with the lowest Cr concentration, the film shows a very strong ͓111͔ orientation. It is known that chromium and tellurium form a wide range of magnetic compounds Cr 1−x Te x with Curie temperature ranging from 100 to about 350 K. 22 To confirm that there is no Cr 1−x Te x phase, we performed high resolution TEM ͑HRTEM͒ studies. Figure 2͑a͒ shows the plan-view HRTEM picture of the representative sample C. Grains with sizes of 10-15 nm can be seen in different orientations.…”

“…Various characterizations show that these samples are free of Cr 1−x Te x impurities 22 and the ferromagnetism is intrinsic. A more in-depth transport study demonstrates that at low temperatures the resistivity and magnetoresistance ͑MR͒ are governed by the Efros-Shklovskii 23 ͑ES͒-type variable range hopping ͑VRH͒.…”

Corrosion of 316L in liquid tellurium at 551°C

“…Binary phase diagram of (a) Ni-Te calculated from[24], (b) Fe-Te calculated from[20], (c) Cr-Te[25] Te rich domain of the Cr-Fe-Te isothermal section calculated at 823 K, extrapolation from the binary systems.…”