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arXiv · 1008.2118

Spin polarization of the magnetic spiral in NaCu_2O_2, as seen by NMR

A. A. Gippius·A. S. Moskvin·S. -L. Drechsler
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Abstract

The incommensurate (IC) spin ordering in quasi-1D edge-shared cuprate NaCu_2O_2 has been studied by ^{23}Na nuclear magnetic resonance spectroscopy in an external magnetic field near 6 Tesla applied along the main crystallographic axes. The NMR lineshape evolution above and below T_N\approx12 K yields a clear signature of an IC static modulation of the local magnetic field consistent with a Cu^{2+} spin spiral polarized in the bc-plane rather than in the ab-plane as reported from earlier neutron diffraction data.

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A. A. Gippius, A. S. Moskvin, S. -L. Drechsler. 2010-08-12. Spin polarization of the magnetic spiral in NaCu_2O_2, as seen by NMR. https://doi.org/10.1103/physrevb.77.180403

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