Magnetization Study of the AFM-FM Coexistence in the Manganite System Pr0.5 Ca0.5-x Srx MnO3 |
| M. Maryško and Z. Jirák Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 18221 Praha 8, Czech Republic |
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| Received: 9 07 2007; |
| For the manganites Pr0.5 Ca0.5-x Srx MnO3 (x=0; 0.3) the temperature and cooling field dependence of the reduced remanence asymmetry indicates the antiferromagnetic exchange between the antiferromagnetic and ferromagnetic spins at the surface of the clusters. For x=0.3 we deduce the radius of the cluster in the field cooled regime to be about 20 times larger than that for x=0. |
| DOI: 10.12693/APhysPolA.113.143 PACS numbers: 75.60.-d, 75.47.Lx |