Specialty
A materials study combines X-ray, magnetic, thermal, electrical and surface measurements to examine Te-doped PtBi2. It reports bulk superconductivity near 2.4 K in a centrosymmetric crystal, but leaves the material's composition and higher point-contact temperatures partly unresolved.
Scientific publication4 min read
A two-film comparison found stronger magnetic and current responses and a more even, locally ordered vortex pattern in the 7 mTorr film, but the design cannot establish a general effect of pressure.
Scientific publication5 min read
Cryogenic tunnelling measurements on epitaxial SrSn3 films found contrasting surface- and bulk-associated superconducting signals, including a zero-bias vortex peak whose origin remains unresolved.
Scientific publication3 min read
Pressure-dependent measurements on CeNiC2 single crystals found the same critical transport pattern along all three crystal axes near a narrow superconducting dome, while the authors point to valence fluctuations as a possible explanation.
Scientific publication5 min read
A two-dimensional neutron-star model reports vortex–fluxtube overlap, bouquets of 6 to 9 fluxtubes, and type-1.5-like clustering without phase-gradient entrainment.
Scientific publication3 min read
A preprint reports highly selective resistance changes in individual branches of three-terminal YBCO devices. Optical reflectivity visualized oxygen-depleted fronts, while relaxation became more apparent at higher temperatures.
Scientific publication3 min read
Protected pristine CsV3Sb5 showed no detectable field-free superconducting diode effect, while responses were observed after oxidation and in a selectively etched device, with efficiency varying across sweeps.
Scientific publication4 min read
A preprint analyzing three selected YBCO weak links reports an association between higher focused-helium-ion dose, lower critical current and lower IcRn, while normal resistance rose. The authors say the pattern is consistent with reduced interface transparency and fewer effective conducting channels, but those features were inferred from transport rather than directly measured.
Scientific publication4 min read
Calculations for a two-dimensional superconductor predict distinct nonlinear optical and transport signatures, including a helicity-dependent current, but no experiment is reported.
Scientific publication3 min read