Single-domain stripe order in a high-temperature superconductor
Artikel i vetenskaplig tidskrift, 2022
The coupling of spin, charge and lattice degrees of freedom results in the emergence of novel states of matter across many classes of strongly correlated electron materials. A model example is unconventional superconductivity, which is widely believed to arise from the coupling of electrons via spin excitations. In cuprate high-temperature superconductors, the interplay of charge and spin degrees of freedom is also reflected in a zoo of charge and spin-density wave orders that are intertwined with superconductivity. A key question is whether the different types of density waves merely coexist or are indeed directly coupled. Here we profit from a neutron scattering technique with superior beam-focusing that allows us to probe the subtle spin-density wave order in the prototypical high-temperature superconductor La1.88Sr0.12CuO4 under applied uniaxial pressure to demonstrate that the two density waves respond to the external tuning parameter in the same manner. Our result shows that suitable models for high-temperature superconductivity must equally account for charge and spin degrees of freedom via uniaxial charge-spin stripe fluctuations.
Författare
Gediminas Simutis
Paul Scherrer Institut
Julia Küspert
Universität Zürich
Q. Wang
Universität Zürich
Jaewon Choi
Diamond Light Source
D. Bucher
Universität Zürich
Martin Boehm
Institut Laue-Langevin
Frédéric Bourdarot
Université Grenoble Alpes
Mads Bertelsen
European Spallation Source (ESS)
Chennan N. Wang
Paul Scherrer Institut
T. Kurosawa
Hokkaido University
N. Momono
Hokkaido University
Muroran Institute of Technology
M. Oda
Hokkaido University
Martin Månsson
Kungliga Tekniska Högskolan (KTH)
Yasmine Sassa
Chalmers, Fysik, Materialfysik
Marc Janoschek
Paul Scherrer Institut
Universität Zürich
N. B. Christensen
Danmarks Tekniske Universitet (DTU)
J. Chang
Universität Zürich
Daniel G. Mazzone
Laboratory for Neutron Scattering, Villigen
Communications Physics
23993650 (eISSN)
Vol. 5 1 296Ämneskategorier
Atom- och molekylfysik och optik
Annan fysik
Den kondenserade materiens fysik
DOI
10.1038/s42005-022-01061-4