Magneto-transport and magnetic data on MgB2 polycrystalline samples are reported for applied magnetic fields up to 9 T. In the normal state we find that MgB2 compound has a temperature and field-dependent resistivity behavior like a simple metal. The critical magnetic field H c2 (T) and the irreversibility field Hirr(T) curves were determined. The Hall coefficient RH is slightly temperature dependent. Using the extracted data, we calculated the electronic mean free path, coherency length ξ0 and London penetration depth λL.
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Condensed Matter Physics