Limits to the strain engineering of layered square-planar nickelate thin films

D Ferenc Segedin, BH Goodge, GA Pan… - Nature …, 2023 - nature.com
The layered square-planar nickelates, Nd n+ 1Ni n O2 n+ 2, are an appealing system to tune
the electronic properties of square-planar nickelates via dimensionality; indeed …

Thickness-dependent interface polarity in infinite-layer nickelate superlattices

C Yang, RA Ortiz, Y Wang, W Sigle, H Wang… - Nano Letters, 2023 - ACS Publications
The interface polarity plays a vital role in the physical properties of oxide heterointerfaces
because it can cause specific modifications of the electronic and atomic structure …

Direct observation of strong surface reconstruction in partially reduced nickelate films

C Yang, R Pons, W Sigle, H Wang, E Benckiser… - Nature …, 2024 - nature.com
The polarity of a surface can affect the electronic and structural properties of oxide thin films
through electrostatic effects. Understanding the mechanism behind these effects requires …

Atomic scale disorder and reconstruction in bulk infinite-layer nickelates lacking superconductivity

K Hu, Q Li, D Song, Y Jia, Z Liang, S Wang… - Nature …, 2024 - nature.com
The recent discovery of superconductivity in infinite-layer nickelate films has sparked
significant interest and expanded the realm of superconductors, in which the infinite-layer …

Atomic-layer engineering of nickelates (in search of novel superconductors)

I Božović, G Logvenov, V Butko - Physica C: Superconductivity and its …, 2023 - Elsevier
Abstract Karl Alex Mueller's intuition was that the nature of mobile charge carriers in
manganates and nickelates should be like those in cuprates, which he believed were Jahn …

Phase coexistence and resistance relaxation kinetics in films below the metal-insulator transition temperature

P Majhi, S Mitra, A Singh, B Ghosh, VR Reddy, S Saha… - Physical Review B, 2023 - APS
Coexistence of electronically distinct phases below metal-insulator (MI) transition
temperature (TMI) in correlated oxides undergoing temperature-driven MI transition has …

Strain generated by the stacking faults in epitaxial SrO (SrTiO3) N Ruddlesden–Popper structures

G Saint-Girons, C Furgeaud, L Largeau… - Journal of Applied …, 2023 - journals.iucr.org
Ruddlesden–Popper (RP) phases present outstanding physical properties triggering
significant academic interest. Out-of-plane stacking faults (OP-SFs), which are the main …

The Quest for High-Temperature Superconductivity in Nickelates under Ambient Pressure

L Aggarwal, I Božović - Materials, 2024 - mdpi.com
Recently, superconductivity with Tc≈ 80 K was discovered in La3Ni2O7 under extreme
hydrostatic pressure (> 14 GPa). For practical applications, we needed to stabilize this state …

Atomic Insights of Interface Polarity in NdNiO2/SrTiO3 Superlattices

C Yang, RA Ortiz, Y Wang, W Sigle, H Wang… - 2023 - academic.oup.com
The polarity of an interface between two materials, eg complex functional oxide
heterointerfaces, can greatly affect their physical properties by driving the electronic and …

Atomic-scale observation of geometric frustration in a fluorine-intercalated infinite layer nickelate superlattice

C Yang, RA Ortiz, H Wang, W Sigle, K Anggara… - ar** offers immense potential for tailoring material properties, but achieving precise
control over anion incorporation remains a challenge due to complex synthesis processes …