Pressure dependence of magnetic transitions in URu₂Si₂
- Bourdarot, Frederic
- Fåk, B
- Mineev, V.P.
- Zhitomirsky, Mike
- Kernavanois, N
- Raymond, S
- Lapierre, F
- Lejay, P
- Flouquet, J
DOIAbstract
Proceedings of the Third European Conference on Neutron ScatteringNeutron-scattering and specific-heat measurements of the heavy-fermion superconductor URu2Si2 under hydrostatic pressure and with Rh-doping U(Ru0.98Rh0.02)2Si2 show the existence of two magnetic phase transitions: a second-order phase transition with a tiny ordered moment and a first-order phase transition which gives rise to a large moment. The results can be understood in terms of a hidden order parameter ψ linearly coupled to the dipolar ordered moment m
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