Magnetism of Superconducting UPt3

Details Magnetism of Superconducting UPt3 Magnetism of Superconducting UPt3

1995-08-11

arxiv.org/abs/cond-mat/9508044v1

Physics

Condensed Matter

17 pages, figures available on request to haran@rainbow.if.pwr.wroc.pl

Scientific paper

10.1088/0953-8984/7/42/011

The phase diagram of superconducting $U\!Pt_{3}$ in pressure-temperature plane, together with the neutron scattering data is studied within a two component superconducting order parameter scenario. In order to give a qualitative explanation to the experimental data a set of two linearly independent antiferromagnetic moments which emerge appropriately at the temperature \mbox{$T_{N}\sim 10\cdot T_{c}$} and \mbox{$T_{m}\sim T_{c}$} and couple to superconductivity is proposed. Several constraints on the fourth order coefficients in the Ginzburg-Landau free energy are obtained.

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