Growth, structure and magnetic properties of ZnCr2Se4-single crystals doped by dysprosium

• Published in: Journal of crystal growth 2014-09, Vol.401, p.697-701
• Main Authors: Jendrzejewska, Izabela, Zajdel, Paweł, Maciążek, Ewa, Sozańska, Maria
• Format: Article
• Language: English
• Subjects: A1. X-ray diffraction; A2. Single crystal growth; B1. Inorganic compounds; B1. Rare earth compounds; B2. Magnetic materials; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Growth from vapor; Materials science; Methods of crystal growth; physics of crystal growth; Physics; Theory and models of crystal growth; physics of crystal growth, crystal morphology and orientation
• ISSN: 0022-0248; 1873-5002
• DOI: 10.1016/j.jcrysgro.2014.01.046

The ZnCr2Se4:Dy-single crystals were prepared by chemical vapor transport in closed silica tubes using ZnSe and DySe with CrCl3 as the transport agent. Three crystals with different Dy-content were studied by XRD and magnetic measurements in order to determine the influence of dysprosium on their structural and magnetic properties. The results are inconclusive with respect to the location of Dy-ions admixed into ZnCr2Se4. Composition obtained by Scanning Electron Microprobe points towards tetrahedral sites of the spinel structure, which is not confirmed by bulk XRD. Magnetic measurements of the obtained single crystals corroborated the influence of dysprosium on magnetic properties, which boosted the antiferromagnetic component of the magnetism. •The ZnCr2Se4-single crystals doped with dysprosium.•Chemical vapor transport with CrCl3 as transport agent.•The possible presence of Dy-ions in the tetrahedral or octahedral positions.•The influence of Dy-ions on the magnetic properties.