Evaluation of carbon incorporation and strain of doped MgB2 superconductor by Raman spectroscopy.
Raman spectroscopy is employed to study both the strain and the carbon substitution level in SiC-doped MgB2 bulk samples. Raman spectroscopy was demonstrated to be a better method to distinguish the individual influences of strain and carbon than standard X-ray diffraction. It is found that the latt...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Elsevier
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/24751/1/Evaluation%20of%20carbon%20incorporation%20and%20strain%20of%20doped%20MgB2%20superconductor%20by%20Raman%20spectroscopy.pdf http://psasir.upm.edu.my/id/eprint/24751/ http://www.elsevier.com/ |
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| Institution: | Universiti Putra Malaysia |
| Language: | English English |
| Summary: | Raman spectroscopy is employed to study both the strain and the carbon substitution level in SiC-doped MgB2 bulk samples. Raman spectroscopy was demonstrated to be a better method to distinguish the individual influences of strain and carbon than standard X-ray diffraction. It is found that the lattice parameter correlation method for C content determination is invalid for highly strained samples. Our result also provides an alternative explanation for lattice variation in non-carbon-doped MgB2, which is basically due to lattice strain. |
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