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

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.

5 pages, 4 figures

References in corpus (4)

• Correlation between spin helicity and electric polarization vector in quantum-spin chain magnet LiCu${}_2$O${}_2$
• Switching the Ferroelectric Polarization by External Magnetic Fields in the Spin = 1/2 Chain Cuprate LiCuVO4
• Soft X-ray Resonant Magnetic Scattering Studies on Fe/CoO Exchange Bias System
• Multiferroicity due to nonstoichiometry in the chain cuprate LiVCuO_4

Cited by in corpus (6)

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• Nonrelativistic Multiferroicity in the Nonstoichiometric Spin s=1/2 Spiral Chain Cuprate LiCu2O2
• Magnetic structure of the edge-sharing copper oxide chain compound NaCu2O2
• Pressure and magnetic field effects on a quasi-2D spin-1/2 Heisenberg antiferromagnet
• Bond distortion effects and electric orders in spiral multiferroic magnets
• NMR study of magnetic structure and hyperfine interactions in binary helimagnet FeP