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The 2D-electric-field gradient profile in the incommensurate charge density wave state of 1T-TaS2

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Abstract

Using time differential perturbed angular correlation we probed the incommensurate 2D-plane wave charge density wave in 1T-TaS2 via the181Ta nuclear quadrupole interaction. For the interpretation of the observed line profiles a non-local treatment of the ICDW-perturbation is required. Taking the tensorial character of the electric field gradient into account the wavelength of the CDW-modulation can be derived from the line profiles within an accuracy of better than 5%.

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Ganal, P., Butz, T. The 2D-electric-field gradient profile in the incommensurate charge density wave state of 1T-TaS2 . Hyperfine Interact 80, 1071–1075 (1993). https://doi.org/10.1007/BF00567467

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