Abstrakt
In this paper, wereport the results of an ambient and high pressure study of a 5f-electron ferromagnet URhGa. The work is focused on measurements of magnetic and thermodynamic properties of a single crystal sample and on the construction of the p-T phase diagram.
Diamond anvil cells were employed to measure the magnetization and electrical resistivity pressures up to similar to 9 GPa. At ambient pressure, URhGa exhibits collinear ferromagnetic ordering of uranium magnetic moments mu(U) similar to 1.1 mu(B) (at 2 K) aligned along the c-axis of the hexagonal crystal structure below the Curie temperature T-C = 41K.
With the application of pressure up to 5GPa the ordering temperature T-C initially increases whereas the saturated moment slightly decreases. The rather unexpected evolution is put in the context of the UTX family of compounds. (c) 2018 Author(s).
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