Magnetic phase diagram under pressure of Ho pyrochlore iridate
In pyrochlore iridates (formula R2Ir2O7), the iridium magnetic moments apply a molecular field on the rare-earth ions, resulting in a wide variety of magnetic phases. Recently, a theoretical phase diagram was computed, showing that by varying the Ir molecular field and the rare-earth interactions, one can go from an antiferromagnetic state to a fragmented phase (where the magnetic moment fragments into an ordered antiferromagnetic phase and a fluctuating phase) and to a spin ice state. We have started to explore this phase diagram experimentally by measuring the magnetic structure under pressure in Ho2Ir2O7 up to 10 GPa. This experiment showed that pressure is a relevant tool to probe the phase diagram and weakens the fragmented ground state stabilized at ambient pressure. However, the applied pressure was not high enough to reach the phase boundary. The objective of the present experiment is thus to increase the pressure further up to 20GPa to reach this phase boundary and compare with the theoeretical predictions.
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The recommended format for citing this dataset in a research publication is in the following format:
LHOTEL Elsa; Thomas C. Hansen; MUSEUR Flavien; PETIT Sylvain; SIMONET Virginie and VAUNAT Antoine. (2023). Magnetic phase diagram under pressure of Ho pyrochlore iridate. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-31-2926
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This data is not yet public
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