Abstract
Soft X-ray absorption spectroscopy (XAS), using fluorescence yield, was used to study the boron K near edge in MgB2 superconductor. The sample consists of MgB2 crystallites randomly oriented in a magnesium matrix. Abrasion of the sample surface in vacuum provides a surface relatively free of boron-containing impurities. The intrinsic boron K near edge spectrum of the sample at a temperature of 295 K is identified. This spectrum is then compared in detail with a spectrum calculated using the full potential linearized augmented plane wave method. Features predicted by the theory appear near the expected energies, with qualitative agreement regarding shape and intensity.
| Original language | English |
|---|---|
| Pages (from-to) | 1207-1216 |
| Number of pages | 10 |
| Journal | Modern Physics Letters B |
| Volume | 20 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - 20 Aug 2006 |
| Externally published | Yes |
Keywords
- MgB
- Soft X-ray absorption
- Superconductor