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Optical properties ...
Optical properties of LaNi O3 films tuned from compressive to tensile strain
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- Ardizzone, I. (author)
- Université de Genève,University of Geneva,Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
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- Zingl, M. (author)
- Flatiron Institute,Center for Computational Quantum Physics, Flatiron Institute, New York, USA
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- Teyssier, J. (author)
- Université de Genève,University of Geneva,Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
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- Strand, Hugo, 1983 (author)
- Flatiron Institute,Chalmers tekniska högskola,Chalmers University of Technology,Center for Computational Quantum Physics, Flatiron Institute, New York, USA; Department of Physics, Chalmers University of Technology, Gothenburg, Sweden
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- Peil, O. (author)
- Materials Center Leoben Forschung GmbH, Leoben, Austria
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- Fowlie, J. (author)
- Université de Genève,University of Geneva,Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
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- Georgescu, A. B. (author)
- Flatiron Institute,Collège de France, Paris, France; Center for Computational Quantum Physics, Flatiron Institute, New York, USA; Centre de Physique Théorique, École Polytechnique, Cedex, France; Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland,Université de Genève,University of Geneva,École polytechnique
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- Catalano, S. (author)
- Université de Genève,University of Geneva,Centro de Investigacion Cooperativa en Nanociencias,Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
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- Bachar, N. (author)
- Université de Genève,University of Geneva,Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
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- Kuzmenko, A. B. (author)
- Université de Genève,University of Geneva,Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
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- Gibert, M. (author)
- Universität Zürich,University of Zürich,Université de Genève,University of Geneva,Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
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- Triscone, J. M. (author)
- Université de Genève,University of Geneva,Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
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- Georges, A. (author)
- Université de Genève,University of Geneva,Flatiron Institute,École polytechnique,Collège de France
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- Van Der Marel, D. (author)
- Université de Genève,University of Geneva,Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland
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(creator_code:org_t)
- American Physical Society, 2020
- 2020
- English.
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In: Physical Review B. - : American Physical Society. - 2469-9969 .- 2469-9950. ; 102:15
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
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- Materials with strong electronic correlations host remarkable - and technologically relevant - phenomena such as magnetism, superconductivity, and metal-insulator transitions. Harnessing and controlling these effects is a major challenge, on which key advances are being made through lattice and strain engineering in thin films and heterostructures, leveraging the complex interplay between electronic and structural degrees of freedom. Here we show that the electronic structure of LaNiO3 can be tuned by means of lattice engineering. We use different substrates to induce compressive and tensile biaxial epitaxial strain in LaNiO3 thin films. Our measurements reveal systematic changes of the optical spectrum as a function of strain and, notably, an increase of the low-frequency free carrier weight as tensile strain is applied. Using density functional theory (DFT) calculations, we show that this apparently counterintuitive effect is due to a change of orientation of the oxygen octahedra. The calculations also reveal drastic changes of the electronic structure under strain, associated with a Fermi surface Lifshitz transition. We provide an online applet to explore these effects. The experimental value of integrated spectral weight below 2 eV is significantly (up to a factor of 3) smaller than the DFT results, indicating a transfer of spectral weight from the infrared to energies above 2 eV. The suppression of the free carrier weight and the transfer of spectral weight to high energies together indicate a correlation-induced band narrowing and free carrier mass enhancement due to electronic correlations. Our findings provide a promising avenue for the tuning and control of quantum materials employing lattice engineering.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Publication and Content Type
- art (subject category)
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- By the author/editor
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Ardizzone, I.
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Zingl, M.
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Teyssier, J.
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Strand, Hugo, 19 ...
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Peil, O.
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Fowlie, J.
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show more...
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Georgescu, A. B.
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Catalano, S.
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Bachar, N.
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Kuzmenko, A. B.
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Gibert, M.
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Triscone, J. M.
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Georges, A.
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Van Der Marel, D ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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Physical Review ...
- By the university
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Chalmers University of Technology
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Örebro University