The relation between quantum numbers, atomic notation and x-ray notation for the first few energy levels [3]. j is the total angular momentum quantum number which takes | − s| ≤ j ≤ |

We report β-detected NMR of ion-implanted 8 Li in a single crystal and thin film of the strongly correlated metal LaNiO 3 . In both samples, spin-lattice relaxation measurements reveal two distinct local metallic environments, as is evident from T-linear Korringa 1/T 1 below 200 K with slopes comparable to other metals. A small, approximately temperature independent Knight shift of ∼74 ppm is observed, yielding a normalized Korringa product characteristic of substantial antiferromagnetic correlations, but, we find no evidence for a magnetic transition from 4 to 310 K. Two distinct, equally abundant 8 Li sites is inconsistent with the widely accepted rhombohedral structure of LaNiO 3 , but cannot be simply explained by either of the common alternative orthorhombic or monoclinic distortions. arXiv:1906.07878v1 [cond-mat.str-el]

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A superconducting quantum interference device (SQUID) was prepared on a micron-sized single crystal using a selected growth domain of a thin film of CeCoIn5 grown by molecular beam epitaxy. SQUID voltage oscillations of good quality were obtained as well as interference effects stemming from the individual Josephson microbridges. The transport characteristics in the superconducting state exhibited several peculiarities which we ascribe to the periodic motion of vortices in the microbridges. The temperature dependence of the Josephson critical current shows good correspondence to the Ambegaokar-Baratoff relation, expected for the ideal Josephson junction. The results indicate a promising pathway to identify the type of order parameter in CeCoIn5 by means of phase-sensitive measurements on microbridges.

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