Large self-heating by trapped-flux reduction in Sn-Pb solders
| Autor: | Mizuguchi, Yoshikazu, Murakami, Takumi, Kasem, Md. Riad, Arima, Hiroto |
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| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | EPL 147, 36003 (2024) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1209/0295-5075/ad6802 |
| Popis: | Magnetic flux trapping in field-cooled (FC) Sn-Pb solders has been recently studied because of the observation of nonvolatile magneto-thermal switching [H. Arima et al., Commun. Mater. 5, 34 (2024)] and anomalous magnetic field-temperature (H-T) phase diagrams [T. Murakami et al., AIP Adv. 13, 125008 (2023)]. In this paper, we investigate the origin of the anomalously low specific heat (C) in Sn10-Pb90 and Sn45-Pb55 solders after FC at H = 1500 Oe. We show that the FC solders exhibit self-heating possibly caused by the flux flow during the reduction of trapped fluxes when heating the sample during the C measurements. The T dependence of T rise clearly exhibits unexpectedly large values when the low-C states are observed. In addition, the cause of the transition-like behavior in C-T of FC solders are explained by local heating during H control and flux-jump phenomena. Comment: 19 pages, 7 figures, Supplemental data. arXiv admin note: text overlap with arXiv:2403.01719 |
| Databáze: | arXiv |
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