Bi-Pd (Bismuth-Palladium)

Predel, B.

doi:10.1007/10040476_573

Cited by 1 publication

(3 citation statements)

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“…In our crystals, EDX analysis suggested a slight Bi deficiency, but it was within uncertainty of perfect stoichiometry. A more precise EPMA investigation was also consistent with ideal stoichiometry: Bi 0.987 (19) Pd 1.013 (18) using 2σ uncertainties. Apart from Ref.…”

Section: Discussionsupporting

confidence: 64%

“…To the authors' knowledge, the low-temperature properties of Bi 3 Pd 5 have not been reported. A wide variety of other Bi-Pd phases exist 18,19 , but they should not be able to form as inclusions in a BiPd sample.…”

Section: Discussionmentioning

confidence: 99%

“…Crystals were grown by a modified Bridgman-Stockbarger technique, as described in greater detail elsewhere 17 . Chips of bismuth (Aldrich, 99.999%) and palladium metal (Degussa or Credit Suisse, 99.95%) in a stoichiometric ratio were sealed in an evacuated quartz tube with a conical end, which was cooled slowly through the material's congruent melting point (600 • C 18,19 ) in a temperature gradient, crystallizing the melt from one end of the tube at a growth rate of 1.5 mm/h. The ampoule was also cooled slowly through the transition between α-BiPd and β-BiPd 20,21 near 200 • C to maximize the domain size.…”

Section: Methodsmentioning

confidence: 99%

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Upper critical field of the noncentrosymmetric superconductor BiPd

et al. 2016

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The superconducting parameters and upper critical field of the noncentrosymmetric superconductor BiPd have proven contentious. This material is of particular interest because it is a singular example of a $4f$-electron-free noncentrosymmetric superconductor of which crystals may be grown and cleaved, enabling surface-sensitive spectroscopies. Here, using bulk probes augmented by tunnelling data on defects, we establish that the lower of the previously reported upper critical fields corresponds to the bulk transition. The material behaves as a nearly-weak-coupled BCS s-wave superconductor, and we report its superconducting parameters as drawn from the bulk upper critical field. Possible reasons behind the order-of-magnitude discrepancy in the reported upper critical fields are discussed.Comment: 6 + epsilon pages, 4 figure

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Section: Discussionsupporting

confidence: 64%

Section: Discussionmentioning

confidence: 99%