Structure of the (110) LnScO3&nbsp;(Ln=Gd,Tb,Dy) surfaces

Mansley, Zachary R.; Mizzi, Christopher A.; Koirala, Pratik; Wen, Jianguo; Marks, Laurence D.

doi:10.1103/physrevmaterials.4.045003

Structure of the (110) LnScO₃ (Ln=Gd,Tb,Dy) surfaces

Journal Article · Mon Apr 27 00:00:00 EDT 2020 · Physical Review Materials

DOI:https://doi.org/10.1103/physrevmaterials.4.045003· OSTI ID:1756169

^[1]; ^[1]; Koirala, Pratik ^[1]; Wen, Jianguo ^[2]; Marks, Laurence D. ^[1]

Northwestern Univ., Evanston, IL (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)

The surface reconstruction on the (110) surface of LnScO₃ (Ln=Gd,Tb,Dy) has been investigated using x-ray photoelectron spectroscopy, atomic force microscopy, and transmission electron diffraction coupled with higher-level density-functional theory methods. The experimental techniques generate constraints on the surface chemistry and structure that are used to inform the theoretical comparison of a number of potential surface structures. The resulting structure is then compared to experimental aberration-corrected transmission electron microscopy results using multislice simulation. The surfaces of both single-crystalline substrates and hydrosauna synthesized nanoparticles exhibit a Sc-rich double layer with a Sc₃O₄ termination.

View Accepted Manuscript (DOE)

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC02-06CH11357; FG02-03ER15457

OSTI ID:: 1756169

Alternate ID(s):: OSTI ID: 1778929

Journal Information:: Physical Review Materials, Journal Name: Physical Review Materials Journal Issue: 4 Vol. 4; ISSN 2475-9953

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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