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Com4Com SIGNED

Collective modes in 4d-metal compounds and heterostructures

Total Cost €

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EC-Contrib. €

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Partnership

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 Com4Com project word cloud

Explore the words cloud of the Com4Com project. It provides you a very rough idea of what is the project "Com4Com" about.

monolayer    spectroscopy    4d    conceptual    deposition    tests    atomic    3d    heterostructures    play    space    resolution    roles    dispersion    fuel    monolayers    coverage    superconductivity    data    rixs    few    questions    oxide    potentially    spatial    spectroscopies    composition    modes    devise    tightly    excitations    resonant    sensitivity    metals    eminent    electronics    synthesis    wavefunctions    quantum    instrument    collective    feedback    integrate    computation    momentum    resolved    transition    compounds    device    structures    decisively    definitive    topological    comprising    hamiltonians    energy    specificity    electronic    yield    exchange    characterization    condensed    orbital    interaction    magnitude    proposals    specifying    metal    electrons    valence    phenomena    physics    fundamental    electron    organization    full    ray    models    materials    unanswered    relations    inelastic    unconventional    shaped    interactions    scattering    excited    realize    body    interplay    coupling    spin    derives    modeling    correlations    microscopic    orbit    liquid    ranging    kitaev    loop    experiments    films   

Project "Com4Com" data sheet

The following table provides information about the project.

Coordinator
MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV 

Organization address
address: HOFGARTENSTRASSE 8
city: Munich
postcode: 80539
website: www.mpg.de

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 Germany [DE]
 Project website http://www.fkf.mpg.de/6431341/ERC-Project
 Total cost 3˙176˙850 €
 EC max contribution 3˙176˙850 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-ADG
 Funding Scheme ERC-ADG
 Starting year 2016
 Duration (year-month-day) from 2016-01-01   to  2020-12-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV DE (Munich) coordinator 3˙176˙850.00

Map

 Project objective

Compounds of transition metals with 4d valence electrons (“4d metals”) play eminent roles in many areas of condensed matter physics ranging from unconventional superconductivity to oxide electronics, but fundamental questions about the interplay between the spin-orbit coupling and electronic correlations at the atomic scale remain unanswered. Momentum-resolved spectroscopies of collective electronic excitations yield detailed insight into the magnitude and spatial range of the electronic correlations, and have thus decisively shaped the conceptual understanding of quantum many-body phenomena in 3d-electron systems. We will devise and build a novel resonant inelastic x-ray scattering (RIXS) instrument capable of determining the dispersion relations of electronic collective modes in 4d-metal compounds with full momentum-space coverage, high energy resolution, and monolayer sensitivity.

Data from this instrument will yield comprehensive information about the interaction parameters specifying the electronic Hamiltonians of 4d-electron materials, unique insight into the spin-orbital composition of their excited-state wavefunctions, and definitive tests of proposals to realize Kitaev models with spin-liquid states that are potentially relevant in topological quantum computation. The element-specificity of RIXS will also allow us to determine the microscopic exchange interactions in complex materials with both 3d and 4d valence electrons, and its high sensitivity will enable experiments on operational device structures comprising only a few monolayers. We will thus be able to tightly integrate momentum-resolved spectroscopy with state-of-the-art, monolayer-by-monolayer deposition methods of 4d metal-oxide films and heterostructures. The results will fuel a feedback loop comprising synthesis, characterization, and modeling, which will greatly advance our ability to design materials and devices whose functionality derives from the collective organization of electrons.

 Publications

year authors and title journal last update
List of publications.
2018 Huimei Liu, Giniyat Khaliullin
Pseudospin exchange interactions in d 7 cobalt compounds: Possible realization of the Kitaev model
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.97.014407
Physical Review B 97/1 2019-07-04
2018 C. Dietl, S. K. Sinha, G. Christiani, Y. Khaydukov, T. Keller, D. Putzky, S. Ibrahimkutty, P. Wochner, G. Logvenov, P. A. van Aken, B. J. Kim, B. Keimer
Tailoring the electronic properties of Ca 2 RuO 4 via epitaxial strain
published pages: 31902, ISSN: 0003-6951, DOI: 10.1063/1.5007680
Applied Physics Letters 112/3 2019-07-04
2019 H. Suzuki, H. Gretarsson, H. Ishikawa, K. Ueda, Z. Yang, H. Liu, H. Kim, D. Kukusta, A. Yaresko, M. Minola, J. A. Sears, S. Francoual, H.-C. Wille, J. Nuss, H. Takagi, B. J. Kim, G. Khaliullin, H. YavaÅŸ, B. Keimer
Spin waves and spin-state transitions in a ruthenate high-temperature antiferromagnet
published pages: , ISSN: 1476-1122, DOI: 10.1038/s41563-019-0327-2
Nature Materials 2019-05-22
2019 Huimei Liu, Giniyat Khaliullin
Pseudo-Jahn-Teller Effect and Magnetoelastic Coupling in Spin-Orbit Mott Insulators
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.122.057203
Physical Review Letters 122/5 2019-05-22
2018 Dietl, Christopher Johannes
Synthesis and Electronic Ordering Phenomena of Calcium Ruthenate Thin Films
published pages: , ISSN: , DOI: 10.18419/OPUS-10069
Universität Stuttgart 238 pp. (2018). doi:10.18419/OPUS-10069 = Dissertation, University of Stuttgart, 2018 2 2019-05-22

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