Structural and magnetic properties of single-crystalline Co-doped barium titanate nanoparticles |
| |
Authors: | Hongxue Liu,Baobao Cao,Charles J. O&rsquo Connor |
| |
Affiliation: | Advanced Materials Research Institute, University of New Orleans, New Orleans, LA 70148, USA |
| |
Abstract: | Undoped and Co-doped BaTiO3 nanoparticles were synthesized by a one-step sol-precipitation method. For all the samples, X-ray diffraction showed characteristic diffraction lines for BaTiO3 without the indication of secondary phases. High-resolution transition electron microscopy images showed that BaTiO3 nanoparticles exhibit the nature of single-crystal. Magnetometry revealed that all the Co-doped BaTiO3 samples show paramagnetic behaviors and Co ions in BaTiO3 are present as isolated paramagnetic centers. This is contrasted to several reported cases of ferromagnetism in Co-doped BaTiO3. |
| |
Keywords: | 75.75.+a 81.07.Bc 77.84.&minus s 75.20.&minus g |
本文献已被 ScienceDirect 等数据库收录! |