Abstract
The magnetic order of Pr ions in polycrystalline, tetragonal PrBa 2Cu3O6.2 has been studied by neutron-diffraction measurements. The basic ordering consists of an antiferromagnetic arrangement with the propagation vector k=[1/2, 1/2, 1/2], but the magnetic ordering is imperfect due to finite correlation length ξc=(10±1) Å along the c axis. The Néel temperature is determined to be TN=(12±1) K, and the magnetic saturation moment of the Pr ions turns out to be (1.9±0.2) μB. The distance Pr-O(2) compared in several related perovskite-type Pr compounds correlates with the Néel temperature in accordance with the superexchange interaction.
| Original language | English |
|---|---|
| Pages (from-to) | 6331-6333 |
| Number of pages | 3 |
| Journal | Journal of Applied Physics |
| Volume | 75 |
| Issue number | 10 |
| DOIs | |
| State | Published - 1994 |
| Externally published | Yes |
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