Revisiting the $^{63}$Cu NMR signature of charge order in La$_{1.875}$Ba$_{0.125}$CuO$_{4}$

  title={Revisiting the \$^\{63\}\$Cu NMR signature of charge order in La\$\_\{1.875\}\$Ba\$\_\{0.125\}\$CuO\$\_\{4\}\$},
  author={Takatomo Imai and Philip M. Singer and Alexandre Arsenault and M. Fujita},
We use single crystal Cu NMR techniques to revisit the early Cu NQR signature of charge order observed for La1.875Ba0.125CuO4 (Tc = 4 K) [A. W. Hunt et al., Phys. Rev. Lett. 82, 4300 (1999)]. We show that the growth of spin correlations is accelerated below ∼ 80 K, where the inverse Laplace transform (ILT) T1 analysis of the La NMR spin-lattice relaxation curve recently uncovered emergence of the slow components in the lattice and/or charge fluctuations [P. M. Singer et al., 101, 174508 (2020… 
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