![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
The temperature dependence of Mn2+ EPR spectrum in Sn2P2Se6 ferroelectric has been obtained. The magnitude of resonant magnetic field is shown to depend on the crystalline field constants ratio B2 o/B2 2 not on their absolute values, if B2 0 oB2 2 ≥ gβH· The Mn2+ EPR line intensity decreses in temperature range 140⩽ ⩽ T ⩽ 192 K. The temperature of EPR spectrum vanishing (T = 192 K) is closed to the temperature of Sn2P2Se6 phase transition from incommersurate to ferroelectric phase (Tc = 193 K).