Abstract
Microwave-modulated non-resonant microwave absorption (MM-NRMA) were measured for a variety of YBa 2Cu 3O x superconducting samples such as a standard sintered YBa 2Cu 3O x sample, a sintered YBa 2Cu 3O x sample decomposed from YBa 2Cu 4O x phase, a quenched and melt growth YBa 2Cu 3O x sample with Y 2Ba 1Cu 1O 5 inclusions and an YBa 2Cu 3O x film sample prepared by pulsed laser ablation. The absorption spectra derived from the MM-NRMA were compared with the derivative of the absorption spectra derived from the standard field modulated NRMA (FM-NRMA). The experiment revealed that the MM-RNMA technique makes the interpretation for understanding the NRMA mechanism simpler, avoiding the ambiguity of the FM-NRMA, especially for the samples with strong pinning centers. The quenched and melt growth YBa 2Cu 3O x sample with strong pinning centers shows a large hysteresis in the MM-NRMA signal. The MM-NRMA signal for the sample was found to show an intense irregular signal caused by the magnetic field application.
Sign-in/Register to access full text options 
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 call
