TY - JOUR
T1 - Absence of bulk charge density wave order in the normal state of UTe2
AU - Kengle, C. S.
AU - Vonka, J.
AU - Francoual, S.
AU - Chang, J.
AU - Abbamonte, P.
AU - Janoschek, M.
AU - Rosa, P. F.S.
AU - Simeth, W.
N1 - W.S. acknowledges fruitful discussions with Aline Ramirez. The authors further thank Simon Gerber for discussions. W.S. was supported through funding from the European Union\u2019s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No 884104 (PSI-FELLOW-III-3i). Work at Los Alamos National Laboratory was performed under the auspices of the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Science and Engineering. C.S.K. acknowledges support from the Laboratory Directed Research and Development program. P.A. acknowledges support from the Gordon and Betty Moore Foundation, EPiQS grant GBMF9452. J.C. acknowledges support from Swiss National Science foundation under grant 200021-188564. M.J. acknowledges funding by the Swiss National Science Foundation through the project \u201CBerry-Phase Tuning in Heavy f-Electron Metals\u201D (200650). We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Parts of this research were carried out at PETRA III at DESY. Beamtime was allocated for proposal I-20221340 EC.
PY - 2024/12
Y1 - 2024/12
N2 - A spatially modulated superconducting state, known as pair density wave (PDW), is a tantalizing state of matter with unique properties. Recent scanning tunneling microscopy (STM) studies revealed that spin-triplet superconductor UTe2 hosts an unprecedented spin-triplet, multi-component PDW whose three wavevectors are indistinguishable from a preceding charge-density wave (CDW) order that survives to temperatures well above the superconducting critical temperature, Tc. Whether the PDW is the mother or a subordinate order remains unsettled. Here, based on a systematic search for bulk charge order above Tc using resonant elastic X-ray scattering (REXS), we show that the structure factor of charge order previously identified by STM is absent in the bulk within the sensitivity of REXS. Our results invite two scenarios: either the density-wave orders condense simultaneously at Tc in the bulk, in which case PDW order is likely the mother phase, or the charge modulations are restricted to the surface.
AB - A spatially modulated superconducting state, known as pair density wave (PDW), is a tantalizing state of matter with unique properties. Recent scanning tunneling microscopy (STM) studies revealed that spin-triplet superconductor UTe2 hosts an unprecedented spin-triplet, multi-component PDW whose three wavevectors are indistinguishable from a preceding charge-density wave (CDW) order that survives to temperatures well above the superconducting critical temperature, Tc. Whether the PDW is the mother or a subordinate order remains unsettled. Here, based on a systematic search for bulk charge order above Tc using resonant elastic X-ray scattering (REXS), we show that the structure factor of charge order previously identified by STM is absent in the bulk within the sensitivity of REXS. Our results invite two scenarios: either the density-wave orders condense simultaneously at Tc in the bulk, in which case PDW order is likely the mother phase, or the charge modulations are restricted to the surface.
UR - https://www.scopus.com/pages/publications/85209475768
UR - https://www.scopus.com/pages/publications/85209475768#tab=citedBy
U2 - 10.1038/s41467-024-53739-8
DO - 10.1038/s41467-024-53739-8
M3 - Article
C2 - 39521771
AN - SCOPUS:85209475768
SN - 2041-1723
VL - 15
JO - Nature communications
JF - Nature communications
IS - 1
M1 - 9713
ER -