Study of the Magnetic Properties of MnSb2Te4 using EPR Spectroscopy

Electron paramagnetic resonance (EPR) is the resonant absorption of electromagnetic energy by a paramagnetic substance placed in an external magnetic field. The phenomenon of EPR was discovered by Yevgeny Zavoisky in 1944. This discovery marked the beginning of the development of magnetic resonance spectroscopy, which has extensive applications in modern science and technology. The aim of the presented work was to introduce EPR spectroscopy and to study the magnetic properties of the compound MnSb2Te4 using this method. EPR measurements of a polycrystalline sample of MnSb2Te4 were conducted over a wide temperature range of 30 - 300 Kelvin. The EPR spectra line shape of MnSb2Te4 was analysed, and the temperature dependence of its parameters was studied. The obtained results provide significant information about the magnetic interactions and their temperature dependence present in MnSb2Te4.