Characterization of superconducting Sn thin films and their application to ferromagnet-superconductor hybrids

Bang, Wonbae; Morrison, Tyler D.; Rathnayaka, K. D. D.; Lyuksyutov, I. F.; Naugle, D. G.; Teizer, W.

doi:10.1016/j.tsf.2019.02.033

Cited by 5 publications

(9 citation statements)

References 42 publications

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“…This enhancement is not caused by disorder, because for unconventional pairing, both T c and H c2⊥ are suppressed by disorder [48,49]. We note that the situation is different from conventional superconductors such as Sn or MgB 2 [50,51], where the enhancement of H c2 with a tiny reduction of T c is observed in thin films. The thin films of the above conventional superconductors are granular and in the dirty limit, and the mean free path is much smaller than the coherence length ξ 0 .…”

Section: (C)mentioning

confidence: 68%

Exotic heavy-fermion superconductivity in atomically thin CeCoIn5 films

et al. 2023

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We report an in situ scanning tunneling microscopy study of atomically thin films of CeCoIn 5 , a d-wave heavy-fermion superconductor. Both hybridization and superconducting gaps are observed even in monolayer CeCoIn 5 , providing direct evidence of superconductivity of heavy quasiparticles mediated by purely twodimensional bosonic excitations. In these atomically thin films, T c is suppressed to nearly half of the bulk, but is similar to CeCoIn 5 /YbCoIn 5 superlattices containing CeCoIn 5 layers with the same thickness as the thin films. Remarkably, the out-of-plane upper critical field μ 0 H c2⊥ at zero temperature is largely enhanced from those of bulk and superlattices. The enhanced H c2⊥ well exceeds the Pauli and bulk orbital limits, suggesting the possible emergence of unusual superconductivity with parity mixing caused by the inversion symmetry breaking.

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Section: (C)mentioning

confidence: 68%

Exotic heavy-fermion superconductivity in atomically thin CeCoIn5 films

et al. 2023

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“…RHQ process ensures that grain growth of material is limited and homogenous magnetic properties [34]. RHQ process increases the material temperature to synthesize intermetallic material then quenches to stop formation of unwanted phases and grain growth [70]. Heating of material is done by electrical current, supplied by Cu wheel which rolls over the wire, afterwards material is quenched in Ga bath to finish the RHQ [70].…”

Section: Wire Productionmentioning

confidence: 99%

“…Superconducting thin film properties are depending on thin film thickness [70] and substrate properties [73]. The main substrate property by means of superconductivity is thermal conductivity [73].…”

Section: Thin Films Productionmentioning

confidence: 99%

“…Thin film thickness can determine the type of superconductivity [70]. Sn is known for exhibit superconductivity of Type-I or soft superconductor, Sn thin films of 50 and 100 nm are found to be Type-II superconductors [70].…”

Section: Thin Films Productionmentioning

confidence: 99%

“…Thin film production techniques are applicable for superconductor materials. Magnetron sputtering [75], Radio-Frequency sputtering [73], photolithography [70], electron beam evaporation [75], cold spray [76], vacuum plasma spraying [77] are some of the techniques which are used in superconductor thin film claddings. Techniques for thin film production may be adapted to produce superconducting films.…”

Section: Thin Films Productionmentioning

confidence: 99%

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Soft Superconductors: Materials and Applications

Bugdayci

2022

Superconductors

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Superconductors emerge as materials that offer great benefits with the superior properties they offer. In this study, the general properties of superconducting materials, their history and properties of soft superconductors are emphasized. Superconductivity mechanisms are investigated through crystal structures and BCS theory. Superconductivity properties of A3B, perovskite, MMo6X8&M2A3X3 compounds were evaluated over crystal symmetries. In addition, research on the production methods and usage areas of superconductors are presented in this section.

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