| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1864503 | Physics Letters A | 2006 | 5 Pages |
Abstract
The interchain interaction and magnetic structure of the (Er0.25Gd0.75)2BaNiO5 single crystal is studied by optical spectroscopy. The magnetic ordering temperature TN=52±1K of this compound with two different rare earths interconnecting nickel chains is well described by a mean-field model. The magnetic moments order along the direction of the nickel chains which is imposed by Er3+ single-ion anisotropy. Fine structure of Er3+ spectral lines was observed and explained by lattice distortions due to disorder in the rare-earth subsystem of the mixed compound.
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Authors
M.N. Popova, S.A. Klimin, P. Higel, G. Dhalenne,