Article ID Journal Published Year Pages File Type
1798117 Journal of Magnetism and Magnetic Materials 2016 5 Pages PDF
Abstract

•Hydrostatic and uniaxial pressure along the c-axis cause an increase of TN.•The ground state magnetic structure is stabilized with decreasing Nd-Nd distances.•The change of TN is related to change of structural and crystal-field parameters.

We have studied the pressure effect on the magnetic phase diagram of tetragonal Nd2RhIn8. The magnetization under uniaxial pressure up to 5.3 kbar applied along the tetragonal c-axis and the heat capacity under hydrostatic pressure were measured in magnetic fields up to 7 and 14 T, respectively. Both types of measurements reveal an increase of TN with increasing pressure; the effect is considerably stronger for the uniaxial pressure. Considering also the anisotropic compressibility in this family of compounds, we conclude that TN increases with decreasing c/a. The phase boundary between the ground-state AF1 phase and the field-induced AF2 phase shifts slightly to higher magnetic fields with increasing pressure. The ground state phase is thus stabilized by applying pressure. The magnetic phase diagram is constructed.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Condensed Matter Physics
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