Abstract
ErCrO has been synthesized as a single phase by the nitrate precursor method under an oxygen flow at 753 K. The structure of this compound has been refined from X-ray and neutron powder diffraction data, showing the zircon-type structure, S.G. I4 /amd and lattice parameters a=7.062(1) A, c=6.201(3) A. Magnetic susceptibility and magnetization measurements reveal the existence of incipient ferromagnetic interactions in the Cr sublattice below 25 K. When the temperature decreases, the superexchange Er3+ –O–Cr5+ –O–Er3+
antiferromagnetic interactions become predominant. The estimated Neel temperature is 15 K. A metamagnetic transition has been detected at the critical field of 375 Oe. Neutron diffraction data show a three-dimensional antiferromagnetic ordering in which both Cr and Er sublattices are involved. Such ordering takes place with a propagation vector k=[0].
antiferromagnetic interactions become predominant. The estimated Neel temperature is 15 K. A metamagnetic transition has been detected at the critical field of 375 Oe. Neutron diffraction data show a three-dimensional antiferromagnetic ordering in which both Cr and Er sublattices are involved. Such ordering takes place with a propagation vector k=[0].
| Original language | English |
|---|---|
| Pages (from-to) | 369–374 |
| Journal | Journal of Alloys and Compounds |
| Volume | 344 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2002 |
Keywords
- Magnetically ordered materials
- X-ray diffraction
- Neutron diffraction
- Exchange and superexchange
- Magnetic measurements
Research Beacons, Institutes and Platforms
- Advanced materials