Quantum confinement induced metal-insulator transition in strongly correlated quantum wells of SrVO3 superlattices

Alyn D N James; Markus Aichhorn; Jude Laverock

doi:10.1103/PhysRevResearch.3.023149

Quantum confinement induced metal-insulator transition in strongly correlated quantum wells of SrVO₃ superlattices

Alyn D N James, Markus Aichhorn, Jude Laverock^*

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

10 Citations (Scopus)

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Abstract

Dynamical mean-field theory (DMFT) has been employed in conjunction with density functional theory (DFT + DMFT) to investigate the metal-insulator transition (MIT) of strongly correlated 3d electrons due to quantum confinement. We shed light on the microscopic mechanism of the MIT and previously reported anomalous subband mass enhancement, both of which arise as a direct consequence of the quantization of V xz(yz) states in the SrVO3 layers. We therefore show that quantum confinement can sensitively tune the strength of electron correlations, leading the way to applying such approaches in other correlated materials.

Original language	English
Article number	023149
Number of pages	14
Journal	Physical Review Research
Volume	3
Issue number	2
Early online date	26 May 2021
DOIs	https://doi.org/10.1103/PhysRevResearch.3.023149
Publication status	Published - Jun 2021

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© 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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The effect of local correlations on the wave functions and experiment-theory comparisons within strongly and weakly correlated materials
James, A. D. N. (Author), Dugdale, S. (Supervisor), 11 May 2021
Student thesis: Doctoral Thesis › Doctor of Philosophy (PhD)

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SrVO3/SrTiO3 DFT+DMFT data
Laverock, J. (Creator) & James, A. (Creator), University of Bristol, 13 May 2021
DOI: 10.5523/bris.1n5ra5bhdim102ct2wb6ehfojw, http://data.bris.ac.uk/data/dataset/1n5ra5bhdim102ct2wb6ehfojw
Dataset

HPC (High Performance Computing) and HTC (High Throughput Computing) Facilities
Alam, S. R. (Manager), Eccleston, P. E. (Other), Williams, D. A. G. (Manager) & Atack, S. H. (Other)
Facility/equipment: Facility

Cite this

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title = "Quantum confinement induced metal-insulator transition in strongly correlated quantum wells of SrVO3 superlattices",

abstract = "Dynamical mean-field theory (DMFT) has been employed in conjunction with density functional theory (DFT + DMFT) to investigate the metal-insulator transition (MIT) of strongly correlated 3d electrons due to quantum confinement. We shed light on the microscopic mechanism of the MIT and previously reported anomalous subband mass enhancement, both of which arise as a direct consequence of the quantization of V xz(yz) states in the SrVO3 layers. We therefore show that quantum confinement can sensitively tune the strength of electron correlations, leading the way to applying such approaches in other correlated materials.",

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AB - Dynamical mean-field theory (DMFT) has been employed in conjunction with density functional theory (DFT + DMFT) to investigate the metal-insulator transition (MIT) of strongly correlated 3d electrons due to quantum confinement. We shed light on the microscopic mechanism of the MIT and previously reported anomalous subband mass enhancement, both of which arise as a direct consequence of the quantization of V xz(yz) states in the SrVO3 layers. We therefore show that quantum confinement can sensitively tune the strength of electron correlations, leading the way to applying such approaches in other correlated materials.

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DO - 10.1103/PhysRevResearch.3.023149

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IS - 2

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Quantum confinement induced metal-insulator transition in strongly correlated quantum wells of SrVO3 superlattices

Abstract

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Student theses

The effect of local correlations on the wave functions and experiment-theory comparisons within strongly and weakly correlated materials

Datasets

SrVO3/SrTiO3 DFT+DMFT data

Equipment

HPC (High Performance Computing) and HTC (High Throughput Computing) Facilities

Cite this

Quantum confinement induced metal-insulator transition in strongly correlated quantum wells of SrVO₃ superlattices