Epitaxial growth of Ruddlesden-Popper neodymium nickelates Nd${}_{n+1}$Ni${}_n$O${}_{3n+1}$ ($n$ = 1-5)

Abstract

A series of Ruddlesden-Popper nickelates, Nd${}_{n+1}$Ni${}_n$O${}_{3n+1}$ ($n$ = 1-5), have been stabilized in thin film form using reactive molecular-beam epitaxy. High crystalline quality has been verified by X-ray diffraction and scanning transmission electron microscopy. X-ray photoelectron spectroscopy indicates the $n$-dependent valence states of nickel in these compounds. Metal-insulator transitions show clear $n$ dependence for intermediate members ($n$ = 3-5), and the low-temperature resistivities of which show logarithmic dependence, resembling the Kondo-scattering as observed in the parent compounds of superconducting infinite-layer nickelates.

12 pages, 4 figures

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Cited by in corpus (8)

• Superconductivity in infinite-layer nickelates
• Trilayer multi-orbital models of $\mathrm{L}{\mathrm{a}}_4\mathrm{N}{\mathrm{i}}_3{\mathrm{O}}_{10}$
• Synthesis and electronic properties of Nd${}_{n+1}$Ni${}_n$O${}_{3n+1}$ Ruddlesden-Popper nickelate thin films
• Limits to the strain engineering of layered square-planar nickelate thin films
• Synthesis of infinite-layer nickelates and influence of the capping-layer on magnetotransport
• Electronic structure of Ruddlesden-Popper nickelates: strain to mimic the effects pressure
• General trends of electronic structures, superconducting pairing, and magnetic correlations in the Ruddlesden-Popper nickelate $m$-layered superconductors La${}_{m+1}$Ni${}_m$O${}_{3m+1}$
• Valency, charge-transfer, and orbital-dependent correlation in bilayer nickelates Nd3Ni2O7