Measurements of the critical magnetic field slope near the superconducting transition temperature T care reported for samples of Nb1−x Ge x , (Nb0.99Ti0.01)1−x Ge x , and (Nb0.99Zr0.01)1−x Ge x for 0.15≤x≤0.25. The samples investigated were produced by trisputtering onto heated polycrystalline alumina substrates. The critical magnetic field slope near T cfor substituted samples is comparable to that of Nb3Ge alone. The highest T cvalues, the highest resistance ratios, and the narrowest transitions, however, occur for samples with excess transition metal component.
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Supported by PSC-BHE Research Award Program.
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Cadieu, F.J., Chencinski, N. Magnetic field properties of 1 at.% transition metal substituted Nb3Ge. J Low Temp Phys 38, 667–676 (1980). https://doi.org/10.1007/BF00115496
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DOI: https://doi.org/10.1007/BF00115496