Physics – Condensed Matter – Superconductivity
Scientific paper
1999-01-11
Physics
Condensed Matter
Superconductivity
improved version submitted to Phys. Rev. B
Scientific paper
10.1103/PhysRevB.59.14099
We have investigated the magnetic and the superconducting properties of the hybrid ruthenate-cuprate compound RuSr_{2}GdCu_{2}O_{8} by means of zero-field muon spin rotation- (ZF-$\mu $SR) and DC magnetization measurements. The DC-magnetisation data establish that this material exhibits ferromagnetic order of the Ru-moments ($\mu (Ru) \approx 1 \mu_{B}$) below T_{Curie} = 133 K and becomes superconducting at a much lower temperature T_c = 16 K. The ZF-$\mu $SR experiments indicate that the ferromagnetic phase is homogeneous on a microscopic scale and accounts for most of the sample volume. They also suggest that the magnetic order is not significantly modified at the onset of superconductivity.
Ansaldo Eduardo J.
Bernhard Christian
Blasius Th.
Brücher E.
Golnik Andrzej
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