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Quantum MAny-body Physics in Solids

Applicant Chang Johan Juul
Number 155873
Funding scheme Temporary Backup Schemes
Research institution Physik-Institut Universität Zürich
Institution of higher education University of Zurich - ZH
Main discipline Condensed Matter Physics
Start/End 01.08.2015 - 31.07.2020
Approved amount 1'641'958.00
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Keywords (6)

superconductivity; exotic metals; quantum criticality; many-body physics; scattering experiments; charge and spin density waves

Lay Summary (German)

Lead
Vielteilchenphysik bezieht sich auf Systeme, in welchen eine grossen Anzahl von Objekten wechselwirkt. Schwarmverhalten von Tieren, Entstehung von Galaxien und Elektronen in Festkörpermaterialien sind gute Beispiele. Moderne Festkörperphysik konzentriert sich auf stark korrelierte Elektronensysteme, die interessante Phänomene zeigen, wie Supraleitung, Metall-Isolator-Übergänge und Spin-/ Ladungsdichte-Wellen.
Lay summary

Inhalt und Ziel des Forschungsprojekts

Das Projekt mit dem Titel "Quantum Matter Physics in Solids (QMAPS)" ist mit Materialeigenschaften besorgt, welche von Quantenphysik dominiert werden. Phänomene wie Supraleitung, Ladungsdichte-Welle und unkonventionelle Metalle werden mit Neutronenstreuungs- und Lichtstreuungs-Instrumenten untersucht. Experimente, um neue Arten von Quantenmaterie zu entdecken, oder die Mechanismen von ungelösten Problemen zu offenbaren, werden bei Neutronen- und Synchrotroneinrichtungen durchgeführt werden.

 

Wissenschaftlicher und gesellschaftlicher Kontext des Forshungsprojects

Von der Stein-, durch die Bronze- und Eisenzeit, zur modernen Silizium-Revolution, haben Materialien eine entscheidende Rolle beim Aufstieg der menschlichen Zivilisation gespielt. Weiterer technischer Fortschritt beruht auf unserer Fähigkeit, elektronische Eigenschaften von komplexen Materialien zu nutzen. Dieses Projekt adressiert experimentiell die Organisationsprinzipien der Quantenmaterie.

 

Direct link to Lay Summary Last update: 02.06.2015

Responsible applicant and co-applicants

Employees

Publications

Publication
Damped spin excitations in a doped cuprate superconductor with orbital hybridization
Ivashko Oleh et al. (2017), Damped spin excitations in a doped cuprate superconductor with orbital hybridization, in Physical Review B , 214501.
Magnetic field controlled charge density wave coupling in underdoped YBa2Cu3O6+x
Chang Johan et al. (2016), Magnetic field controlled charge density wave coupling in underdoped YBa2Cu3O6+x, in Nature Communications , 7, 11494.
Resonant inelastic x-ray scattering study of the spin and charge excitations in the overdoped superconductor La1.77Sr0.23CuO4
Monney Claude et al. (2016), Resonant inelastic x-ray scattering study of the spin and charge excitations in the overdoped superconductor La1.77Sr0.23CuO4, in Physical Review B , 75103.

Collaboration

Group / person Country
Types of collaboration
Mantin von Zimmermann Germany (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
Simon Gerber Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Research Infrastructure
Naoki Oda Japan (Asia)
- in-depth/constructive exchanges on approaches, methods or results
- Research Infrastructure
Antonio Vercchione Italy (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Research Infrastructure

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
The 14th Int. Conf. on Muon Spin Rotation, Relaxation and Resonance Talk given at a conference Oxide - Electronics: From Mott Physics to high-temperature superconductivity 25.06.2017 Sapporo, Japan Chang Johan Juul;
Superstripe conference Talk given at a conference Nature of the Mott insulator Ca2RuO4 05.06.2017 Ischia, Italy Chang Johan Juul;
Satellite meeting to the European XFEL Users meeting 2017 Talk given at a conference Diffraction in Pulsed-Magnetic Fields: Problem solver for Superconductors 24.01.2017 Hamburg, Germany Chang Johan Juul;
CIFAR – Quantum Materials Program Meeting Talk given at a conference Field-induced uni-directional charge-density-wave order in underdoped YBa2Cu3O7-x  01.10.2016 Montreal, Canada Chang Johan Juul;
MaNEP meeting Talk given at a conference Magnetic-field control of high-temperature superconductivity and charge order 06.07.2016 Les Diablerets, Switzerland Chang Johan Juul;
Spectroscopies in Novel Superconductors (SNS2016) Talk given at a conference Magnetic-field control of high-temperature superconductivity and charge order 19.06.2016 Stuttgart, Germany Chang Johan Juul;
International workshop (SCHTC16) Talk given at a conference Magnetic-field control of high-temperature superconductivity and charge order 23.05.2016 Dresden, Germany Chang Johan Juul;
Probing Superconductivity at the Nanoscale Talk given at a conference Magnetic-field control of high-temperature superconductivity and charge order 15.04.2016 Saas Fee, Switzerland Chang Johan Juul;
DESY user meeting Talk given at a conference Recent results from PETRA III 28.01.2016 Hamburg, Germany Chang Johan Juul;
DyProSo Talk given at a conference Charge order, superconductivity and pseudogap physics in the cuprates 13.09.2015 Munich, Germany Chang Johan Juul;


Associated projects

Number Title Start Funding scheme
164013 Laser-heated Floating Zone Furnace for EPFL Crystal Growth Facility 01.11.2016 R'EQUIP
170760 High-field THz source for pump-probe experiments at SwissFEL 01.11.2017 R'EQUIP
183304 Microwaves for coherent control of quantum matter and magnonic devices 01.12.2018 R'EQUIP
177005 Novel Sample Environment for the µSR Spectrometer FLAME 01.11.2018 R'EQUIP
160765 Mott Physics Beyond the Heisenberg Model in Iridates and Related Materials 01.01.2016 Sinergia
179097 Electron-Donation for Superconductivity 01.01.2019 SNSF Professorships
142434 Strongly correlated metals beyond the Fermi liquid concept 01.09.2012 Ambizione
183300 High-resolution soft-X-ray ARPES facility at Swiss Light Source 01.03.2019 R'EQUIP
150573 Fluctuations of boson and fermion condensates 01.01.2015 SNSF Professorships

Abstract

Curiosity was the name of a recent Mars rover, missioned to explore possible extra-terrestrial life forms. This was yet another milestone in the ever expanding human exploration of the universe. Back on the earth, contemporary scientists are challenged by complex many-body problems. Man landing on the moon is a simple task compared to understanding how complex immune functions interact with the 100 trillion gut bacteria harboured by humans. Or why the universe seems to have an imbalance between matter and anti-matter. This research proposal is set to investigate complicated many-body systems governed by the laws of quantum mechanics. Although quantum mechanics were established a century ago, quantum many-body physics remains a vivid field of research spanning from cosmology to condensed matter systems. Perhaps high-temperature superconductivity is the best known example of an unsolved quantum many-body problem. It is an example of how researchers keep making unexpected discoveries in the field of quantum matter. The objectives of this research program are to investigate quantum many-body systems realized in solids - socalled quantum matter. Special focus is given to quantum many-body systems that have correspondences to other fields such as cosmology or the physics of ultra-cold atoms gasses. Efforts will also be made to enhance our control of quantum matter. The Q-MAPS research program is divided into four subprojects entitled: Unconventional spin & charge order, quantum criticality, strange metals and pseudogap physics. These problems of two-dimensional fermionic quantum many-body physics will be approached experimentally by state-of-the-art scattering and spectroscopy techniques provided by a dense grid of European large facilities. A horizontal pulsed magnet, specially designed for x-ray diffraction is planned. Combined with the instrumental developments foreseen in the period 2015-2020, entirely new schemes for scattering experiments will be introduced.
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