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This article is cited in 3 scientific papers (total in 3 papers)
Semiconductors
Magnetic states of Fe$^{2+}$ ions in Fe$_{x}$Mn$_{1-x}$S, induced by chemical pressure
G. M. Abramovaa, Yu. V. Knyazeva, O. A. Bayukova, S. P. Kubrinb a Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch Russian Academy of Sciences, Krasnoyarsk, Russia
b Research Institute of Physics, Rostov-on-Don State University, Rostov-on-Don, Russia
Abstract:
The effect of chemical pressure $(x)$ on the spin state of iron ions in Fe$_{x}$Mn$_{1-x}$S single crystals (0.12 $\le x\le$ 0.29) is studied by the method of Mössbauer spectroscopy in the range 4.2–300 K. Features of the formation of the paramagnetic and antiferromagnetic phases for solid solutions are revealed. It was found that when $x$ changes in Fe$_{x}$Mn$_{1-x}$S, the Mn$^{2+}$ cations are replaced by Fe$^{2+}$ cations in the high-spin state. A decrease in the interionic distances in Fe$_{x}$Mn$_{1-x}$S causes a change in the state of Fe$^{2+}$ ions in the samples at $x$ = 0.25 and 0.29. In the magnetically ordered phase at 4.2 K, the changes in the asymmetry parameter of the electric field gradient tensor (EFG) and the angle between the directions of the magnetic moment and the principal axis of the electric field gradient from 21$^\circ$ in the sample from $x$ = 0.12 to 33$^\circ$ at $x$ = 0.29 were observed.
Keywords:
monosulfides of 3d elements, strongly correlated substances, Mössbauer studies, states of the Fe$^{2+}$ ion.
Received: 27.08.2020 Revised: 27.08.2020 Accepted: 30.08.2020
Citation:
G. M. Abramova, Yu. V. Knyazev, O. A. Bayukov, S. P. Kubrin, “Magnetic states of Fe$^{2+}$ ions in Fe$_{x}$Mn$_{1-x}$S, induced by chemical pressure”, Fizika Tverdogo Tela, 63:1 (2021), 69–75; Phys. Solid State, 63:1 (2021), 68–74
Linking options:
https://www.mathnet.ru/eng/ftt8199 https://www.mathnet.ru/eng/ftt/v63/i1/p69
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