Anomalous magnetic ordering in PrBa 2 Cu 3 O 7 − y single crystals : Evidence for magnetic coupling between the Cu and Pr sublattices

@inproceedings{Narozhnyi2008AnomalousMO,
  title={Anomalous magnetic ordering in PrBa 2 Cu 3 O 7 − y single crystals : Evidence for magnetic coupling between the Cu and Pr sublattices},
  author={V. N. Narozhnyi and Dieter Eckert and Konstantin Nenkov and G{\"u}nter Fuchs and T. G. Uvarova and K.-H. M{\"u}ller},
  year={2008}
}
In Al-free PrBa2Cu3O7−y single crystals the kink in the temperature dependence of magnetic susceptibility χab(T ), connected with Pr antiferromagnetic ordering, disappears after field cooling (FC) in a field H ‖ ab-plane. The kink in χc(T ) remains unchanged after FC in H ‖ c−axis. As a possible explanation, freezing of the Cu magnetic moments, lying in the ab−plane, caused by FC in H ‖ ab, hinders their reorientation and, due to coupling between the Pr and Cu(2) sublattices, ordering of the Pr… CONTINUE READING
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