Even harmonics of AC susceptibility in some sintered pellets of high temperature superconductors
A Das A Bajpai A Banerjee R Srinivasan
Click here to view fulltext PDF
The real (χ′n) and imaginary (χ″n) parts of even harmonic susceptibility (n⩽6) are measured as a function of external DC field (Hdc) in the field increasing (H↑) and decreasing (H↑) cycle. Hysteresis is observed betweenH↑ andH↓ cycles. In theH↓ cycle, at a field,Hcomp=4·2G, bothχ′ andχ″ of all the even harmonics vanish indicating a true cancellation of fields in the intergrain region (Heff≈0) caused by the balance betweenHdc and the remanent magnetization of the grains. The position of the extrema and the zero of the various harmonics undergo a shift proportional to the remanent magnetization of the grains at that particular field.
A Das1 A Bajpai1 A Banerjee1 R Srinivasan1
Volume 97, 2023
Continuous Article Publishing mode
Click here for Editorial Note on CAP Mode