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Resonant electron tunnelling assisted by charged domain walls in multiferroic tunnel junctions

Authors :
Sánchez Santolino, Gabriel
Tornos Castillo, Javier
Hernandez-Martin, David
Beltrán Fínez, Juan Ignacio
Munuera, Carmen
Cabero Piris, Mariona
Perez-Muñoz, Ana
Ricote, Jesús
Mompean, Federico
Garcia-Hernandez, Mar
Sefrioui Khamali, Zouhair
León Yebra, Carlos
Pennycook, Steve, J.
Muñoz, María Carmen
Varela Del Arco, María
Santamaría Sánchez-Barriga, Jacobo
Sánchez Santolino, Gabriel
Tornos Castillo, Javier
Hernandez-Martin, David
Beltrán Fínez, Juan Ignacio
Munuera, Carmen
Cabero Piris, Mariona
Perez-Muñoz, Ana
Ricote, Jesús
Mompean, Federico
Garcia-Hernandez, Mar
Sefrioui Khamali, Zouhair
León Yebra, Carlos
Pennycook, Steve, J.
Muñoz, María Carmen
Varela Del Arco, María
Santamaría Sánchez-Barriga, Jacobo
Publication Year :
2024

Abstract

Está depositada una versión preprint del artículo<br />The peculiar features of domain walls observed in ferroelectrics make them promising active elements for next-generation non-volatile memories, logic gates and energy-harvesting devices. Although extensive research activity has been devoted recently to making full use of this technological potential, concrete realizations of working nanodevices exploiting these functional properties are yet to be demonstrated. Here, we fabricate a multiferroic tunnel junction based on ferromagnetic La0.7Sr0.3MnO3 electrodes separated by an ultrathin ferroelectric BaTiO3 tunnel barrier, where a head-to-head domain wall is constrained. An electron gas stabilized by oxygen vacancies is confined within the domain wall, displaying discrete quantum-well energy levels. These states assist resonant electron tunnelling processes across the barrier, leading to strong quantum oscillations of the electrical conductance.<br />Ministerio de Economía y Competitividad (España)<br />Comunidad Autónoma de Madrid<br />United States Department of Energy (DOE)<br />BBVA Foundation<br />European Research Council (ERC)<br />Red Española de Superconputación (RES)<br />Universite Paris Saclay (DAlembert Program)<br />Centre National de la Recherche Scientifique (CNRS)<br />CeSViMa (Madrid)<br />Depto. de Física de Materiales<br />Fac. de Ciencias Físicas<br />TRUE<br />pub

Details

Database :
OAIster
Notes :
application/pdf, 1748-3387, English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1429625179
Document Type :
Electronic Resource