Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1804869 | Journal of Magnetism and Magnetic Materials | 2007 | 4 Pages |
Abstract
6H-SiC single crystals doped in Cr at doses of 0.0156 wt% were prepared in a stainless steel autoclave at 460 °C. The doped samples were characterized with Raman spectroscopy (RS), X-ray fluorescence spectrum (XFS), electronic paramagnetism resonance (EPR) and superconducting quantum interference device (SQUID) measuring their magnetic properties. Room temperature paramagnetism of the 6H-SiC single crystals due to Cr3+ was examined by EPR spectra, with the fine structure parameter g=1.99g=1.99. To the sensitivity of SQUID analysis, signatures of ferromagnetism were observed in the samples at low temperatures, with an apparent Curie temperature of 69.8 K.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Zhao Huang, Qianwang Chen,