TY  - JOUR
AU  - Kengle, Caitlin
AU  - Vonka, Jakub
AU  - Francoual, Sonia
AU  - Chang, Johan
AU  - Abbamonte, P.
AU  - Janoschek, Marc
AU  - Rosa, P. F. S.
AU  - Simeth, Wolfgang
TI  - Absence of bulk charge density wave order in the normal state of UTe<sub>2</sub>
JO  - Nature Communications
VL  - 15
IS  - 1
SN  - 2041-1723
CY  - [London]
PB  - Nature Publishing Group UK
M1  - PUBDB-2024-06656
SP  - 9713
PY  - 2024
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 UTe<sub>2</sub> 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 T<sub>c</sub> in the bulk, in which case PDW order is likely the mother phase, or the charge modulations are restricted to the surface. 
LB  - PUB:(DE-HGF)16
C6  - 39521771
UR  - <Go to ISI:>//WOS:001352369200022
DO  - DOI:10.1038/s41467-024-53739-8
UR  - https://bib-pubdb1.desy.de/record/617259
ER  -