English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The longitudinal resistivity (rho_{xx}) and transverse resistivity (rho_{xy})of MgB2 thin films in the mixed state were studied in detail. We found that thetemperature dependencies of rho_{xx} and \rho_{xy} at a fixed magnetic field(H) satisfy the scaling law of $\rho_{xy}=A\rho_{xx}^\beta$, where the exponentbeta varies around 2.0 for different fields. In the low field region (below1T), beta maintains a constant value of 2.0 due to the weak pinning strength ofthe vortices, mainly from the superfluid of the pi band. When H>1T, beta dropsabruptly to its lowest value at about 2T because of the proliferation ofquasiparticles from the pi-band and, hence, the motion of the vortices from thesuperfluid of the sigma-band dominates the dissipation. As the field isincreased further, the vortex pinning strength is weakened and beta increasesmonotonically towards 2.0 at a high field. All the results presented here arein good agreement with the expectation of the vortex physics of a multi-bandsuperconductor.

Scaling of Hall Resistivity in the Mixed State of MgB2 Films