Journal
PHYSICAL REVIEW B
Volume 74, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.74.054406
Keywords
-
Ask authors/readers for more resources
We have studied the magnetic and structural properties of PrBaCo2O5.50 and GdBaCo2O5.50 using neutron and synchrotron techniques between 10 and 425 K. A unique structural transition has been detected in this temperature range. The changes observed in Co-O bond lengths across the metal-insulator transition confirm the spin state change of octahedral Co ions with R=Pr, the member of the RBaCo2O5.50 family with the largest R-ion (and R/Ba order). Magnetic structures have been thoroughly investigated. Different magnetic models previously reported for smaller lanthanides were checked against our data. We have found an evolution of the magnetic order, across the successive magnetic transitions, which can be interpreted on the basis of a hierarchical set of exchange interactions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available