Appearance of the superconducting phase transition of solders in magnetoresistance measurements

• Published in: Journal of applied physics Vol. 59; no. 12; pp. 4108 - 4112
• Main Authors: BUIJ, A. W, SCHLEIJPEN, H. M. A, BLOM, F. A. P
• Format: Journal Article
• Language: English
• Published: Woodbury, NY American Institute of Physics 15.06.1986
• Subjects: Applied sciences; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Conductivity phenomena in semiconductors and insulators; Electronic transport in condensed matter; Exact sciences and technology; Galvanomagnetic and other magnetotransport effects; Other techniques and industries; Physics; Magnetooscillatory properties; Semiconductor materials; Cadmium Manganese Arsenides Mixed; Transition metal Compounds; Magnetoconductivity; Electric contact; Experimental study; Contamination; Binary alloy; Inorganic compound
• ISSN: 0021-8979; 1089-7550
• DOI: 10.1063/1.336668

We have examined the influence of the superconducting phase transition in the solder materials Rose-metal (Bi-52.5%, Pb-32%, Sn-15.5%), CdIn alloy (Cd-50%, In-50%), and indium on magnetoresistance measurements of (Cd1−xMnx)3As2 . The superconducting phase transition of these solders takes place within the temperature and magnetic field ranges where quantum oscillations of magnetoresistance usually are observed. The appearance of the generated anomalous signals may lead to misinterpretation, in terms of anomalous oscillations of the magnetoresistance or quantization of the surface impedance. We have found a correlation between the magnitude of the anomalous signals and the resistivity ratio of solder and sample material.