Abstract
We report on $^{6,7}\mathrm{Li}$ nuclear magnetic resonance measurements of the spin-chain compound ${\mathrm{LiCu}}_{2}{\mathrm{O}}_{2}$ in the paramagnetic and magnetically ordered states. Below $24\phantom{\rule{0.3em}{0ex}}\mathrm{K}$ the NMR line shape shows a clear signature of incommensurate (IC) static modulation of the local magnetic field consistent with an IC spiral modulation of the magnetic moments. $^{7}\mathrm{Li}$ NMR reveals strong phason-like dynamical fluctuations extending well below $24\phantom{\rule{0.3em}{0ex}}\mathrm{K}$. A series of phase transitions at 24.2, 22.5, and $9\phantom{\rule{0.3em}{0ex}}\mathrm{K}$ is observed. Local density approximation based calculations of exchange integrals reveal a large in-chain frustration leading to a magnetical spiral.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
