Bandedge magnetoreflectance and magnetization of Cd1-xCoxTe

dc-Magnetic susceptibility and EPR studies of vapour phase grown Cd1−xCoxTe crystals

“…The coercive field is small and the saturation magnetization corresponding to nearly 0.2 Bohr magnetons per 'Co' atom. Similar behaviour was observed by Shih et al [10] in Cd 1−x Co x Te crystals with x = 0.00383 at 1.4 K in magnetic fields up to 17 T and by Alawadhi et al [11] in Cd 1−x Co x Te crystals with x = 0.01 in magnetic fields up to 60 kG at temperatures of 1.8 and 4.5 K. Miotkowski et al [12] carried out the magnetization measurements on Cd 1−x Co x Te crystals in the concentration range of 0 ≤ x ≤ 0.022 and in the temperature range 2-300 K and in fields up to 5.5 T using SQUID magnetometer. The above authors inferred that in the concentration range of Co, x ≤ 0.004 the Co 2+ spins were essentially non-interacting and magnetization could be described by the Brilliouin function [9,13,14].…”

Exchange interactions and magnetism ofCo2+inZn1−Zieliński1, Rigaux2, Lemaı̂tre3 et al. 1996Phys. Rev. B400110View full textAdd to dashboardCite

“…The value N 0 ␤ϭϪ3.03 eV deduced from the mean-field perturbation model exceeds considerably that found in CdCoSe. [8][9][10] The comparison between the values of N 0 ͑␣Ϫ␤͒ for ZnCoSe, 12 CdCoTe, 11 and the present data corroborates the strong enhancement of sp-d exchange interactions in ZnCoTe. Moreover, the chemical trends found in Mn-based II-VI compounds are not verified in Co compounds ͑Table II͒: N 0 ͑␣Ϫ␤͒ is found to increase as the host lattice changes from ZnSe to ZnTe ͑for the same Co concentration͒, in contrast with the trend observed in manganese selenides and tellurides.…”

Structural, Optical, and Magnetic Properties of Co Doped CdTe Alloy Powders Prepared by Solid-State Reaction Method

“…This could be due to the difficulties in preparing homogeneous crystals with sufficient amounts of substituted Co as its solubility is very low. Magnetic properties of Co based CdTe materials have been studied [7][8][9] and the large p-d interaction and d-d exchange interaction were established between Co 2+ and Cd 2+ ions [10][11][12]. Studies on Co doped CdTe alloy powders have not been reported so far.…”