Microscopic study of the effect of impurities on the first order spin density wave transition in BaFe$_2$As$_2$
| dc.creator | Baek, S. -H. | |
| dc.creator | Klimczuk, T. | |
| dc.creator | Ronning, F. | |
| dc.creator | Bauer, E. D. | |
| dc.creator | Thompson, J. D. | |
| dc.creator | Curro, N. J. | |
| dc.date | 2008-07-07 | |
| dc.date | 2008-09-24 | |
| dc.date.accessioned | 2026-07-07T12:22:44Z | |
| dc.date.available | 2026-07-07T12:22:44Z | |
| dc.description | 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. | |
| dc.description | 4 pages, 4 figures ; extensive and significant changes have been made to the previous version, focusing on the effect of impurities on the intrinsic physics | |
| dc.identifier | https://arxiv.org/abs/0807.1084 | |
| dc.identifier | http://arxiv.org/abs/0807.1084 | |
| dc.identifier | PRB, 78, 212509 (2008) | |
| dc.identifier | doi:10.1103/PhysRevB.78.212509 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/213753 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Superconductivity | |
| dc.title | Microscopic study of the effect of impurities on the first order spin density wave transition in BaFe$_2$As$_2$ | |
| dc.type | text |