Microscopic study of the effect of impurities on the first order spin density wave transition in BaFe₂As₂

S.-H. Baek , T. Klimczuk , F. Ronning , E. D. Bauer , J. D. Thompson , N. J. Curro

Authors on Pith no claims yet

classification ❄️ cond-mat.str-el cond-mat.supr-con

keywords orderspinbafefindimpuritiessingletemperaturetransition

read the original abstract

We report an $^{75}$As NMR study of BaFe$_2$As$_2$ in both single crystals and polycrystal forms. We find that Sn impurities in the single crystal dramatically alter the low energy spin fluctuations and suppress the ordering temperature from 138 K to 85 K. In contrast to Sn-free samples, we find that the temperature dependence of the $^{75}$As NMR spectra and spin lattice relaxation rates reveal a second order phase transition to a state of incommensurate magnetic order.

This paper has not been read by Pith yet.

Microscopic study of the effect of impurities on the first order spin density wave transition in BaFe₂As₂

discussion (0)