Fundamental and third harmonics AC susceptibility with applied DC field in YBa₂Cu₃O₇

Authors

Ana Marie Geronimo National Institute of Physics, University of the Philippines Diliman
Mayraluna Lao National Institute of Physics, University of the Philippines Diliman
Roland Sarmago National Institute of Physics, University of the Philippines Diliman

Abstract

Measurements of the temperature dependence of the fundamental and third harmonic response of the AC susceptibility with applied DC field on bulk YBa₂Cu₃O₇at h_AC = 0.678mT and f₁ = 800 Hz were studied. The measurements were done such that the field is too low to allow penetration vortices. Characterization measurements show the formation of YBCO with T_c=84.5^oC. It was found out by examining the fundamental harmonic that the real susceptibility is independent of the applied DC field which shows that the losses are due to the eddy currents in the system. The 3rd harmonics show that there is a decrease in prominence in the features of the susceptibility as the amplitude of the DC field is increased. This is due to the diffusion of the magnetic field which decreases the non linearity of magnetic response causing the absence of higher harmonics.

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Issue

2011: Proceedings of the 29th Samahang Pisika ng Pilipinas National Physics Congress

Article ID

SPP2011-PA-47

Section

Poster Session PA

Published

2011-10-24

How to Cite

[1]

AM Geronimo, M Lao, and R Sarmago, Fundamental and third harmonics AC susceptibility with applied DC field in YBa2Cu3O7, Proceedings of the Samahang Pisika ng Pilipinas 29, SPP2011-PA-47 (2011). URL: https://proceedings.spp-online.org/article/view/SPP2011-PA-47.