Theoretical model for the low-temperature ordering of Pr in PrBa2Cu3O6+x

Autor(en)

Annamaria Kiss, Ferenc Simon

Abstrakt

Theoretical model is presented to describe the anomalous ordered phase of Pr ions in PrBa2Cu3O6+x below T-Pr approximate to 12-17 K. The model considers the Pr multipole degrees of freedom and coupling between the Cu and Pr subsystems. We identify the symmetry allowed coupling of Cu and Pr ions and conclude that only an ab-plane Pr dipole ordering can explain the Cu spin rotation observed at T-Pr by neutron diffraction by Boothroyd et al. [Phys. Rev. Lett. 78, 130 (1997)]. A substantial enhancement of the Pr ordering temperature is shown to arise from the Cu-Pr coupling which is the key for the anomalous magnetic behavior in PrBa2Cu3O6+x.

Organisation(en)

Elektronische Materialeigenschaften

Externe Organisation(en)

Budapest University of Technology and Economics

Journal

Physical Review B

Band

82

Anzahl der Seiten

6

ISSN

1098-0121

DOI

https://doi.org/10.1103/PhysRevB.82.174413

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a64dc411-7d0a-4b59-87d2-211c263de017