Loading...
Please wait, while we are loading the content...
High critical current density and improved flux pinning in bulk MgB2 synthesized by Ag addition
| Content Provider | Semantic Scholar |
|---|---|
| Author | Shekhar, Chandra Giri, Rajiv Kumar Tiwari, Radhey Shyam Malik, Satish Kumar Srivastava, Onkar Nath |
| Copyright Year | 2007 |
| Abstract | In the present investigation, we report a systematic study of Ag admixing in MgB2 prepared by solid-state reaction at ambient pressure. All the samples in the present investigation have been subjected to structural∕ microstructural characterization employing x-ray diffraction and transmission electron microscopic (TEM) techniques. The magnetization measurements were performed by physical property measurement system. The TEM investigations reveal the formation of MgAg nanoparticles in Ag admixed samples. These nanoparticles may enhance critical current density due to their size (∼5–20nm) which is compatible with the coherence length of MgB2 (∼5–6nm). In order to study the flux pinning effect of Ag admixing in MgB2, the evaluation of intragrain critical current density (Jc) has been carried out through magnetic measurements on the fine powdered version of the as synthesized samples. The optimum result on intragrain Jc is obtained for 10at.% Ag admixed sample at 5K. This corresponds to ∼9.23×107A∕cm2 in self... |
| Starting Page | 043906 |
| Ending Page | 043906 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1063/1.2655340 |
| Volume Number | 101 |
| Alternate Webpage(s) | https://arxiv.org/pdf/cond-mat/0701147v1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1063/1.2655340 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
