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Temperature-driven reorganization of electronic order in CsV$ 3$Sb$ 5$ by Stahl, Q.; Chen, D.; Ritschel, T.; Shekhar, C.; Felser, C.; Geck, J. is a scholarly article available to read on EtoBox.

What is Temperature-driven reorganization of electronic order in CsV$ 3$Sb$ 5$ about?

We report a temperature dependent x-ray diffraction study of the electronic ordering instabilities in the kagome material CsV$_3$Sb$_5$. Our measurements between 10 K and 120 K reveal an unexpected reorganization of the three-dimensional electronic order in the bulk of CsV$_3$Sb$_5$: At 10 K, a 2x2x2 superstructure modulation due to electronic order is observed, which upon warming changes to a 2x2x4 superstructure at 60 K. The electronic order-order transition discovered here involves a change in the stacking of electronically ordered V$_3$Sb$_5$-layers and agrees perfectly with anomalies previously observed in magneto-transport measurements. This implies that the temperature dependent three-dimensional electronic order plays a decisive role for transport properties, which are related to the Berry-curvature of the V-bands. Our data also show that the bulk electronic order in CsV$_3$Sb$_5$ breaks the 6-fold rotational symmetry of the underlying $P6/mmm$ lattice structure.

Author

Stahl, Q.; Chen, D.; Ritschel, T.; Shekhar, C.; Felser, C.; Geck, J.

Published

2021

Language

EN