Superconductivity of Au-Ge-Yb Approximants with Tsai-Type Clusters
classification
❄️ cond-mat.supr-con
cond-mat.mtrl-scicond-mat.othercond-mat.str-el
keywords
superconductivitytsai-typeapproximantsformerlattermagnetismobservationapproximant
read the original abstract
We report the emergence of bulk superconductivity in Au64.0Ge22.0Yb14.0 and Au63.5Ge20.5Yb16.0 below 0.68 and 0.36 K, respectively. This is the first observation of superconductivity in Tsai-type crystalline approximants of quasicrystals. The Tsai-type cluster center is occupied by Au and Ge ions in the former approximant, and by an Yb ion in the latter. For magnetism, the latter system shows a larger magnetization than the former. To explain this observation, we propose a model that the cluster-center Yb ion is magnetic. The relationship between the magnetism and the superconductivity is also discussed.
This paper has not been read by Pith yet.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.