Abstract
The measurement of the dc zero-field-cooled magnetization in superconducting high-T c epitaxial thin films with a SQUID susceptometer is found to lead occasionally to anomalous temperature dependence in which the magnetization shows a positive peak near T c . This behavior is always accompanied by positive field-cooled magnetization in a low filed. We attribute these anomalous behaviors to a slightly inhomogeneous field distribution in the sample space, which causes a spurious SQUID output signal almost identical to that gained from a reverse-signed magnetic moment.
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© 1995 Springer-Verlag Tokyo
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Suzuki, M., Miyahara, K., Kubo, S., Karimoto, SI., Tsuru, K., Tanabe, K. (1995). Anomalous Temperature Dependence of dc Magnetization in Superconducting High-T c Thin Films. In: Yamafuji, K., Morishita, T. (eds) Advances in Superconductivity VII. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68535-7_47
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DOI: https://doi.org/10.1007/978-4-431-68535-7_47
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-68537-1
Online ISBN: 978-4-431-68535-7
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