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Stability and Rupture of an Ultrathin Ionic Wire

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Author(s):
Focassio, Bruno ; Fiuza, Tanna E. R. ; Bettini, Jefferson ; Schleder, Gabriel R. ; Rodrigues, Murillo H. M. ; Junior, Joao B. Souza ; Leite, Edson R. ; Fazzio, Adalberto ; Capaz, Rodrigo B.
Total Authors: 9
Document type: Journal article
Source: Physical Review Letters; v. 129, n. 4, p. 6-pg., 2022-07-18.
Abstract

Using a combination of in situ high-resolution transmission electron microscopy and density functional theory, we report the formation and rupture of ZrO2 atomic ionic wires. Near rupture, under tensile stress, the system favors the spontaneous formation of oxygen vacancies, a critical step in the formation of the monatomic bridge. In this length scale, vacancies provide ductilelike behavior, an unexpected mechanical behavior for ionic systems. Our results add an ionic compound to the very selective list of materials that can form monatomic wires and they contribute to the fundamental understanding of the mechanical properties of ceramic materials at the nanoscale. (AU)

FAPESP's process: 20/06257-7 - Atomic Resolution in Atomic Force Microscopy (AFM)
Grantee:Adalberto Fazzio
Support Opportunities: Research Grants - Visiting Researcher Grant - Brazil
FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 19/04527-0 - Interface between crystalline topological insulators and 2D-trivial materials: defect proximity study
Grantee:Bruno Focassio
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 17/02317-2 - Interfaces in materials: electronic, magnetic, structural and transport properties
Grantee:Adalberto Fazzio
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 17/18139-6 - Machine learning for Materials Science: 2D materials discovery and design
Grantee:Gabriel Ravanhani Schleder
Support Opportunities: Scholarships in Brazil - Doctorate