Three magnetic order transitions in mixed valent EuPtP

We report three magnetic order transitions, at 25K, 8K and 0.9 K for the ternary intermediate valent europium system EuPtP in addition to the two first order phase transitions, reported in [1]. For comparison Eu0.5Sr0.5PtP was also studied by Lm-X-ray absorption and susceptibility measurements. The two first order transitions do not exist in Eu0.5Sr0.5PtP and only one magnetic order transition was found. The behaviour of EuPtP and Eu0.5Sr0.5PtP is discussed in terms of the domain picture, proposed in [1].