Fulx-pinning mechanism and activation energy of MgB2 doped with 10 wt % malic- acid has been investigated by measurement of critical current density and resistivity as a function of magnetic fields and temperatures. The field dependence of the critical current density, Jc(B), was analyzed within the collective pinning model. A crossover field, Bsb, from the single vortex to the small vortex bundle-pinning regime was observed. For sintered sample, the temperature dependence of Bsb(T) at low temperature is in good agreement with the δℓ pinning mechanism, i.e., pinning associated with charge-carrier mean free path fluctuation. The activation energy was decreased linearly by increasing magnetic field.
Ghorbani,S. , Bashi,M. and Broghani,A. (2019). Fulx-pinning mechanism and activation energy in malic acid-doped MgB2. Iranian Journal of Physics Research, 10(2), 107-111.
MLA
Ghorbani,S. , , Bashi,M. , and Broghani,A. . "Fulx-pinning mechanism and activation energy in malic acid-doped MgB2", Iranian Journal of Physics Research, 10, 2, 2019, 107-111.
HARVARD
Ghorbani S., Bashi M., Broghani A. (2019). 'Fulx-pinning mechanism and activation energy in malic acid-doped MgB2', Iranian Journal of Physics Research, 10(2), pp. 107-111.
CHICAGO
S. Ghorbani, M. Bashi and A. Broghani, "Fulx-pinning mechanism and activation energy in malic acid-doped MgB2," Iranian Journal of Physics Research, 10 2 (2019): 107-111,
VANCOUVER
Ghorbani S., Bashi M., Broghani A. Fulx-pinning mechanism and activation energy in malic acid-doped MgB2. Dear user; Recently we have changed our software to Sinaweb. If you had already registered with the old site, you may use the same USERNAME but you need to change your password. To do so at the first use, please choose, 2019; 10(2): 107-111.
