Upper critical field $H_{c_2}$ in two-band superconductor
| dc.creator | Palistrant, M. E. | |
| dc.date | 2004-04-21 | |
| dc.date.accessioned | 2026-07-25T23:08:59Z | |
| dc.description | It was obtained the equation for the definition of upper critical field $% H_{c_2}$ in the system with two overlapping energetic bands on the Fermi surface, which is valid for the whole temperature interval $0 \leq T < T_c$. The analytic expressions for the value $H_{c_2}$ at $T \sim T_c$ and $T \ll T_c$ cases were defined. The possibility of changing the curvature $H_{c_2} (T)$ with changing of the electrons speed ratio $v_1 / v_2$ on different cavities on the Fermi surface was revealed. It was obtained the qualitative accordance with experimental data for the intermetallic compound $MgB_2$. | |
| dc.description | 13 pages, 1 figure in the text | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0404489 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0404489 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/95833 | |
| dc.subject | Superconductivity | |
| dc.title | Upper critical field $H_{c_2}$ in two-band superconductor | |
| dc.type | text |