English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report the $^{23}$Na and $^{75}$As NMR studies on NaFeAs single crystals.The structure transition temperature $T_S$ (55 K) and the spin density wave(SDW) transition temperature $T_{SDW}$ (40.5 K) are determined by the NMR linesplits. The spin-lattice relaxation rates indicate that the spin fluctuationsare strongly enhanced just below $T_S$ and drive a second order SDW transition.A fluctuating feature of the SDW ordering is also seen below the $T_{SDW}$. Wefurther performed high-pressure NMR studies on NaFeAs, and found that the$T_{SDW}$ increases by $\sim$7 K and the magnetic moment increases by 30% under2.5 GPa pressure.

23Na and 75As NMR Study of Antiferromagnetism and Spin Fluctuations on NaFeAs Single Crystals