Cu hyperfine coupling constants of HgBa$_{2}$Ca$_{}$Cu$_{2}$O$_{6+\delta}$

Y. Itoh; T. Machi; A. Yamamoto

doi:10.1088/1742-6596/1054/1/012006

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arXiv · 1712.04656

Cu hyperfine coupling constants of HgBa$_{2}$Ca$_{}$Cu$_{2}$O$_{6+\delta}$

Y. Itoh·T. Machi·A. Yamamoto

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Abstract

We estimated the ratios of $^{63}$Cu hyperfine coupling constants in the double-layer high-$T_\mathrm{c}$ superconductor HgBa$_2$CaCu$_2$O$_{6+\delta}$ from the anisotropies in Cu nuclear spin-lattice relaxation rates and spin Knight shifts to study the nature of the ultraslow fluctuations causing the $T_2$ anomaly in the Cu nuclear spin-echo decay. The ultraslow fluctuations may come from uniform magnetic fluctuations spread around the wave vector $q$ = 0, otherwise the electric origins.

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Y. Itoh, T. Machi, A. Yamamoto. 2017-12-13. Cu hyperfine coupling constants of HgBa$_{2}$Ca$_{}$Cu$_{2}$O$_{6+\delta}$. https://doi.org/10.1088/1742-6596/1054/1/012006

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