High pressure effect on the crystal and magnetic structure of Pr0.1Sr0.9MnO3 manganite |
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Authors: | N. T. Dang D. P. Kozlenko S. E. Kichanov Z. Jirák E. V. Lukin B. N. Savenko |
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Affiliation: | 1. Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980, Russia 2. Tula State University, Tula, 300600, Russia 3. Institute of Physics, Prague, 16253, Czech Republic
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Abstract: | The crystal and magnetic structure of Pr0.1Sr0.9MnO3 manganite has been studied by the neutron diffraction at high pressures up to 5 GPa in the temperature range 10?C295 K. At normal pressure and decreasing temperature the appearance of the C-type (T N = 220 K) and G-type (T N = 180 K) antiferromagnetic states occurs, which is accompanied by a structural phase transition from the cubic structure (Pm $ bar 3 $ m space group) to the tetragonal structure (I4/mcm space group). It is shown that the temperature of the transition to the C-type antiferromagnetic phase increases with pressure with the pressure coefficient dT N/dP = 4.0(5) K/GPa and the temperature of the transition to the G-type antiferromagnetic phase weakly depends on pressure. |
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