Year-end Sale % OFF 
Abstract
Polycrystalline MgB2, synthesized using a conventionalsolid-state reaction route, has been investigated for its magnetic fielddependent microwave absorption using a standard X-band EPR spectrometer. Thechanges in microwave absorption as a function of temperature and/or magneticfield were recorded by following the microwave reflectivity of a sample-loadedcavity. The modulated low-field microwave absorption signal was found to besimilar to that observed in high-temperature superconducting materials. Thefield dependent direct microwave absorption in the 0-10 kG range was used todetermine Hc1 values at different temperatures, and the value ofHc1(0) was found to be 250 G. The absorbed microwave power has beenfound to obey a (H)1/2 dependence with a change of slope indicating atransition from a strongly pinned flux lattice to the flux flow regime.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
