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QUESTDO SIGNED

Quantum electronic states in delafossite oxides

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EC-Contrib. €

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Partnership

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Project "QUESTDO" data sheet

The following table provides information about the project.

Coordinator
THE UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS 

Organization address
address: NORTH STREET 66 COLLEGE GATE
city: ST ANDREWS
postcode: KY16 9AJ
website: www.st-andrews.ac.uk

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Project website https://www.quantummatter.co.uk/questdo
 Total cost 1˙999˙825 €
 EC max contribution 1˙999˙825 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-STG
 Funding Scheme ERC-STG
 Starting year 2017
 Duration (year-month-day) from 2017-01-01   to  2021-12-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    THE UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS UK (ST ANDREWS) coordinator 1˙999˙825.00

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 Project objective

One of the most active challenges of modern solid state physics and chemistry is harnessing the unique and varied physical properties of transition-metal oxides. From improved electrodes for solar cells to loss-less transmission of power, these compounds hold the potential to transform our daily lives. Subtle collective quantum states underpin their diverse properties. These complicate their physical understanding but render them extremely sensitive to their local crystalline environment, offering enormous potential to tune their functional behaviour. To date, the vast majority of work has focussed on transition-metal oxides based around cubic “perovskite” building blocks. In contrast, exploiting the layered traingular network of the delafossite structure, the QUESTDO project aims to establish delafossite oxides as a completely novel class of interacting electron system with properties and potential not known in more established systems.

Its scope bridges three of the most important current themes in condensed matter, investigating and controlling the delicate interplay of (i) frustrated triangular and honeycomb lattice geometries, (ii) interacting electrons, and (iii) effects of strong spin-orbit interactions. It brings together advanced spectroscopic measurement with precise materials fabrication. Through these studies, QUESTDO promises critical new insight on the quantum many-body problem in solids, and will advance our understanding and demonstrate atomic-scale control of the physical properties of delafossites. Ultimately, it seeks to establish new design methodologies for the targeted creation of emergent and topological phases in this little-studied family of transition-metal oxides, paving the route for their further study and ultimate application.

 Publications

year authors and title journal last update
List of publications.
2020 V. Sunko, F. Mazzola, S. Kitamura, S. Khim, P. Kushwaha, O. J. Clark, M. D. Watson, I. Marković, D. Biswas, L. Pourovskii, T. K. Kim, T.-L. Lee, P. K. Thakur, H. Rosner, A. Georges, R. Moessner, T. Oka, A. P. Mackenzie, P. D. C. King
Probing spin correlations using angle-resolved photoemission in a coupled metallic/Mott insulator system
published pages: eaaz0611, ISSN: 2375-2548, DOI: 10.1126/sciadv.aaz0611
Science Advances 6/6 2020-02-19
2017 Veronika Sunko, H. Rosner, P. Kushwaha, S. Khim, F. Mazzola, L. Bawden, O. J. Clark, J. M. Riley, D. Kasinathan, M. W. Haverkort, T. K. Kim, M. Hoesch, J. Fujii, I. Vobornik, A. P. Mackenzie, P. D. C. King
Maximal Rashba-like spin splitting via kinetic-energy-coupled inversion-symmetry breaking
published pages: 492-496, ISSN: 0028-0836, DOI: 10.1038/nature23898
Nature 549/7673 2019-06-13
2017 F. Arnold, M. Naumann, S. Khim, H. Rosner, V. Sunko, F. Mazzola, P. D. C. King, A. P. Mackenzie, E. Hassinger
Quasi-two-dimensional Fermi surface topography of the delafossite PdRhO 2
published pages: 75163, ISSN: 2469-9950, DOI: 10.1103/PhysRevB.96.075163
Physical Review B 96/7 2019-06-13
2019 Hidetomo Usui, Masayuki Ochi, Sota Kitamura, Takashi Oka, Daisuke Ogura, Helge Rosner, Maurits W. Haverkort, Veronika Sunko, Philip D. C. King, Andrew P. Mackenzie, Kazuhiko Kuroki
Hidden kagome-lattice picture and origin of high conductivity in delafossite PtCoO 2
published pages: 45002, ISSN: 2475-9953, DOI: 10.1103/PhysRevMaterials.3.045002
Physical Review Materials 3/4 2019-08-29
2018 Nabhanila Nandi, Thomas Scaffidi, Pallavi Kushwaha, Seunghyun Khim, Mark E. Barber, Veronika Sunko, Federico Mazzola, Philip D. C. King, Helge Rosner, Philip J. W. Moll, Markus König, Joel E. Moore, Sean Hartnoll, Andrew P. Mackenzie
Unconventional magneto-transport in ultrapure PdCoO2 and PtCoO2
published pages: 66, ISSN: 2397-4648, DOI: 10.1038/s41535-018-0138-8
npj Quantum Materials 3/1 2019-08-29
2019 Veronika Sunko, Edgar Abarca Morales, Igor Marković, Mark E. Barber, Dijana Milosavljević, Federico Mazzola, Dmitry A. Sokolov, Naoki Kikugawa, Cephise Cacho, Pavel Dudin, Helge Rosner, Clifford W. Hicks, Philip D. C. King, Andrew P. Mackenzie
Direct observation of a uniaxial stress-driven Lifshitz transition in Sr2RuO4
published pages: 46, ISSN: 2397-4648, DOI: 10.1038/s41535-019-0185-9
npj Quantum Materials 4/1 2019-08-29
2019 O. J. Clark, F. Mazzola, J. Feng, V. Sunko, I. Marković, L. Bawden, T. K. Kim, P. D. C. King, M. S. Bahramy
Dual quantum confinement and anisotropic spin splitting in the multivalley semimetal PtSe 2
published pages: 45438, ISSN: 2469-9950, DOI: 10.1103/PhysRevB.99.045438
Physical Review B 99/4 2019-08-29
2018 Federico Mazzola, Veronika Sunko, Seunghyun Khim, Helge Rosner, Pallavi Kushwaha, Oliver J. Clark, Lewis Bawden, Igor Marković, Timur K. Kim, Moritz Hoesch, Andrew P. Mackenzie, Phil D. C. King
Itinerant ferromagnetism of the Pd-terminated polar surface of PdCoO 2
published pages: 12956-12960, ISSN: 0027-8424, DOI: 10.1073/pnas.1811873115
Proceedings of the National Academy of Sciences 115/51 2019-08-29

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