Accepted Paper

Identifying short- and long-range charge density wave orders in kagome-lattice ScV $_{6}$ Sn $_{6}$ via NMR spectroscopy

Xin Zhang, Yue Lu, Hang Li, Feng Zhou, Xuekui Xi, Yong-Chang Lau, Zhiwei Wang, and Wenhong Wang

Phys. Rev. Materials - Accepted 23 April, 2026

DOI: https://doi.org/10.1103/5pky-5cwq

Abstract

ScV6Sn6 is a V-based kagome-lattice material similar to the AV3Sb5 (A = Cs, Rb, K) family. Unlike AV3Sb5, ScV6Sn6 exhibits a three-dimensional charge density wave (CDW) order and yet no superconductivity transition has been observed at low temperature. In this work, we confirm the √3×√3×3 CDW via NMR and detect NMR signatures of the √3×√3×2 short-range order. Above the CDW transition temperature TCDW = 88 K, full width at half maximum (FWHM) of the NMR spectra reveals sensitivity to short-range order. Below TCDW, the NMR spectra corresponding to [m = -7/2 ↔︎ -5/2] satellite transition of V split into two peaks, with an intensity ratio of 2:1. Detailed analyses show that a √3×√3×3 charge density wave order in ScV6Sn6 is consistent with our experimental results.

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Physical Review Materials

Identifying short- and long-range charge density wave orders in kagome-lattice ScV $_{6}$ Sn $_{6}$ via NMR spectroscopy

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Identifying short- and long-range charge density wave orders in kagome-lattice ScV6Sn6 via NMR spectroscopy

Abstract

Identifying short- and long-range charge density wave orders in kagome-lattice ScV $_{6}$ Sn $_{6}$ via NMR spectroscopy