We report on the magnetic properties of four isomorphous compounds of a family of quinternary oxalates down to 60 mK. In all these materials, the magnetic Fe<Superscript>II</Superscript> ions with a strong magneto-crystalline anisotropy form a distorted kagome lattice, topologically equivalent to a perfect kagome one if...</superscript>

The magnetic anisotropy of the ferromagnetic layered manganites La<InlineEquation ID="Equ1"> <EquationSource Format="TEX">$_{2-2x}{\rm Sr}_{1+2x}{\rm Mn}_2{\rm O}_7$</EquationSource> </InlineEquation> is investigated. For x=0.4, the easy-plane anisotropy comes out predominantly from dipolar interaction but it is partly cancelled out by a significant uniaxial magnetocrystalline...</equationsource></inlineequation>

The magnetic properties of (La<Subscript>1 − x </Subscript>Sr<Subscript> x </Subscript>)MnO<Subscript>3</Subscript> crystals have been studied. The ac susceptibility χ=χ′ + iχ″ has been measured at frequencies ranging from 10 Hz to 1 000 Hz. The x=0.25 crystal shows a typical ferromagnetic behaviour with a dimensionless SI susceptibility of 6 below T...</subscript></subscript></subscript></subscript>