Ferromagnetic Behavior of a Short Period Antiferromagnetic Superlattice |
Ż. Wilamowski Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland W. Jantsch and W. Faschinger Institut für Experimentalphysik and Institut für Halbleiterphysik, Johannes Kepler Universität, 4040 Linz-Auhof, Austria |
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We present a study of short period MnTe/CdTe superlattices by magnetic resonance. The usually antiferromagnetic structure exhibits critical line broadening above the Néel temperature typical of antiferromagnetic ordering, but also some ferromagnetic properties at lower temperature. We suggest that the observed ferromagnetic-like moment originates from coupling of the moments of the recently proposed strong magnetic polarons. |
DOI: 10.12693/APhysPolA.87.185 PACS numbers: 71.35.+z, 75.30.Et, 75.70.Fr |