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- Title
Structural and electrical properties of Ho-modified Pb(ZnNb)O-9PbTiO single crystals.
- Authors
Xi, Zengzhe; Han, Amin; Fang, Pinyang; Long, Wei; Li, Xiaojuan; Bu, Qianqian
- Abstract
Ho-modified Pb(ZnNb)O-9PbTiO (PZN-9PT) single crystals were grown through a flux method. Phase structure and microstructural morphology of the as-grown single crystals were performed by X-ray diffraction analysis and scanning electron microscopy. The refinement of the lattice parameters were obtained by the Rietveld method. The electrical properties of PZN-9PT single crystals were improved significantly by the modification of Ho ions. The rhombohedral-tetragonal phase transition temperature, Curie temperature, coercive field at 15 kV cm, and remnant polarization of Ho-modified PZN-9PT single crystals were increased by 14, 42 K, 2.4 kV cm, and 7.5 μC cm, respectively (i.e., 375.45, 448.45 K, 5.9 kV cm, and 38.40 μC cm, respectively). Furthermore, Lorentz-type law was used to describe the dielectric relaxor behavior of the as-grown single crystals.
- Subjects
ELECTRIC properties of single crystals; HOLMIUM; CRYSTAL morphology; RIETVELD refinement; PHASE transitions; CURIE temperature; SCANNING electron microscopy; X-ray diffraction
- Publication
Journal of Materials Science: Materials in Electronics, 2016, Vol 27, Issue 5, p4223
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-016-4286-y