High-pressure effect on magnetic phases in PrRu₂Si₂ single crystal

Abstract

We report on magnetization and electrical resistivity with respect to temperature, magnetic field and hydrostatic pressure (p) up to 0.9 GPa. Moderate dependence of the Curie temperature, T _C, on pressure was observed, whereas the value of the Neel temperature, T _N, remains almost intact up to the highest applied pressure. In the antiferromagnetic phase region (T _C<T<T _N), a metamagnetic transition occurs, with a rather low value of the critical metamagnetic field (μ₀ H _C ∼ 50 mT at 15 K). The μ₀ H _C value increases nearly twice when applying pressure of 0.8 GPa.

Keywords:

• PrRu₂Si₂
• Metamagnetism
• Magnetization
• High pressure
• ThCr₂Si₂-type structure
• Magnetocrystalline anisotropy

Acknowledgements

This work is a part of the research plan MSM 0021620834 that is financed by the Ministry of Education of the Czech Republic.