TY  - JOUR
AU  - D.V. Savchenko
AU  - M.K. Riasna
AU  - M.V. Chursanova
AU  - T.V. Matveeva
AU  - N.A. Popenko
AU  - I.V. Ivanchenko
AU  - E.N. Kalabukhova
TI  - Continuous wave and pulsed EPR study of Cd 1-x Mn x Te crystals with different Mn content
T2  - Semiconductor Physics, Quantum Electronics & Optoelectronics
VL  - 25
IS  - 3
SP  - 275
EP  - 281
PY  - 2022
DO  - 10.15407/spqeo25.03.275
UR  - https://doi.org/10.15407/spqeo25.03.275
AB  - The cadmium manganese telluride (Cd 1–x Mn x Te) crystals (x < 0.001 and x = 0.02, 0.04, 0.1) grown using the Bridgman method were studied by applying continuous wave and pulsed electron paramagnetic resonance (EPR) spectroscopy in the wide temperature range. The Cd1–xMnxTe crystals with x < 0.001 revealed the EPR spectrum from isolated Mn2+ with g⊥ = g∥ = 2.0074(3), |A⊥| = |A∥| = 56.97 ⋅ 10–4 cm–1, |a| = 30.02⋅10–4 cm–1, while Cd1–xMnxTe crystals with x = 0.02…0.04 are characterized by two single broad isotropic EPR lines of Lorentzian shape (g ~ 2.009 and g ~ 1.99) due to Mn clusters of different sizes. The EPR spectrum of Cd 1–x Mn x Te crystals with x = 0.01 consists of the single broad line at g ~ 2.01 due to higher level of homogeneity inherent to these crystals. The temperature dependence of spin relaxation times for the isolated Mn2+ center in the Cd 1–x Mn x Te crystals with x < 0.001 has been described using the conceptions of Orbach process for T M –1 and two-phonon Raman process for T 1 –1.
KW  - EPR
KW  - spin relaxation time
KW  - manganese
KW  - cadmium manganese telluride
ER  -