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QUESTDO SIGNED

Quantum electronic states in delafossite oxides

Total Cost €

EC-Contrib. €

Partnership

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Outcomes and
results

QUESTDO project word cloud

Explore the words cloud of the QUESTDO project. It provides you a very rough idea of what is the project "QUESTDO" about.

daily transmission orbit interacting ultimate structure triangular perovskite topological interplay bridges geometries body tune route sensitive delicate physics complicate quantum electrodes transform transition solids family compounds phases solid honeycomb cubic critical chemistry varied emergent solar functional subtle oxides crystalline fabrication scope active spin brings majority condensed blocks ultimately frustrated network cells atomic physical hold precise render delafossite electrons vast extremely metal promises paving class electron contrast lattice modern environment harnessing underpin completely traingular building questdo little spectroscopic creation local date delafossites power enormous themes materials interactions lives focussed layered one diverse collective

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 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.	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

List of publications.
year	authors and title	journal	last update
2020	V. Sunko, F. Mazzola, S. Kitamura, S. Khim, P. Kushwaha, O. J. Clark, M. D. Watson, I. MarkoviÄ‡, 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 KÃ¶nig, 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 MarkoviÄ‡, Mark E. Barber, Dijana MilosavljeviÄ‡, 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. MarkoviÄ‡, 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 MarkoviÄ‡, 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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