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Magnon interactions...
Magnon interactions in a moderately correlated Mott insulator
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- Wang, Qisi (författare)
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, China; Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland, Winterthurerstrasse 190
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- Mustafi, S. (författare)
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland, Winterthurerstrasse 190
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- Fogh, E. (författare)
- Institute of Physics, École Polytechnique Fedérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
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- Astrakhantsev, N. (författare)
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland, Winterthurerstrasse 190
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- He, Z. (författare)
- Institute of High Energy Physics, Chinese Academy of Sciences (CAS), 100049, Beijing, China; Spallation Neutron Source Science Center (SNSSC), 523803, Dongguan, China
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- Biało, I. (författare)
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland, Winterthurerstrasse 190; AGH University of Krakow, Faculty of Physics and Applied Computer Science, 30-059, Krakow, Poland
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- Chan, Ying (författare)
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, China
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- Martinelli, L. (författare)
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland, Winterthurerstrasse 190
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- Horio, M. (författare)
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland, Winterthurerstrasse 190
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- Ivashko, O. (författare)
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland, Winterthurerstrasse 190
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- Shaik, N. E. (författare)
- Institute of Physics, École Polytechnique Fedérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
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- Arx, K. von (författare)
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland, Winterthurerstrasse 190
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- Sassa, Yasmine (författare)
- KTH,Ljus och materiens fysik
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- Paris, E. (författare)
- Swiss Light Source, Paul Scherrer Institut, CH-5232, Villigen PSI, Switzerland
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- Fischer, M. H. (författare)
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland, Winterthurerstrasse 190
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- Tseng, Y. (författare)
- Swiss Light Source, Paul Scherrer Institut, CH-5232, Villigen PSI, Switzerland
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- Christensen, N. B. (författare)
- Department of Physics, Technical University of Denmark, DK-2800, Kongens Lyngby, Denmark
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- Galdi, A. (författare)
- Dipartimento di Ingegneria Industriale, Universita’ degli Studi di Salerno, 84084, Fisciano, SA, Italy, SA; Department of Materials Science and Engineering, Cornell University, 14850, Ithaca, NY, USA
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- Schlom, D. G. (författare)
- Department of Materials Science and Engineering, Cornell University, 14850, Ithaca, NY, USA; Kavli Institute at Cornell for Nanoscale Science, 14853, Ithaca, NY, USA
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- Shen, K. M. (författare)
- Kavli Institute at Cornell for Nanoscale Science, 14853, Ithaca, NY, USA; Department of Physics, Laboratory of Atomic and Solid State Physics, Cornell University, 14853, Ithaca, NY, USA
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- Schmitt, T. (författare)
- Swiss Light Source, Paul Scherrer Institut, CH-5232, Villigen PSI, Switzerland
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- Rønnow, H. M. (författare)
- Institute of Physics, École Polytechnique Fedérale de Lausanne (EPFL), CH-1015, Lausanne, Switzerland
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- Chang, J. (författare)
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland, Winterthurerstrasse 190
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(creator_code:org_t)
- Springer Nature, 2024
- 2024
- Engelska.
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Ingår i: Nature Communications. - : Springer Nature. - 2041-1723. ; 15:1
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Quantum fluctuations in low-dimensional systems and near quantum phase transitions have significant influences on material properties. Yet, it is difficult to experimentally gauge the strength and importance of quantum fluctuations. Here we provide a resonant inelastic x-ray scattering study of magnon excitations in Mott insulating cuprates. From the thin film of SrCuO2, single- and bi-magnon dispersions are derived. Using an effective Heisenberg Hamiltonian generated from the Hubbard model, we show that the single-magnon dispersion is only described satisfactorily when including significant quantum corrections stemming from magnon-magnon interactions. Comparative results on La2CuO4 indicate that quantum fluctuations are much stronger in SrCuO2 suggesting closer proximity to a magnetic quantum critical point. Monte Carlo calculations reveal that other magnetic orders may compete with the antiferromagnetic Néel order as the ground state. Our results indicate that SrCuO2—due to strong quantum fluctuations—is a unique starting point for the exploration of novel magnetic ground states.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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Wang, Qisi
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Mustafi, S.
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Fogh, E.
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Astrakhantsev, N ...
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He, Z.
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Biało, I.
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visa fler...
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Chan, Ying
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Martinelli, L.
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Horio, M.
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Ivashko, O.
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Shaik, N. E.
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Arx, K. von
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Sassa, Yasmine
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Paris, E.
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Fischer, M. H.
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Tseng, Y.
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Christensen, N. ...
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Galdi, A.
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Schlom, D. G.
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Shen, K. M.
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Schmitt, T.
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Rønnow, H. M.
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Chang, J.
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