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

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

2010-08-12

arxiv.org/abs/1008.2118v1

Phys. Rev. B 77, 180403(R) (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 4 figures

Scientific paper

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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