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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Dioguardi, A. P. Kissikov, T. Lin, C. H. Shirer, K. R. Lawson, M. M. Grafe, H-J Chu, J-H Fisher, I. R. Fernandes, R. M. Curro, N. J. |
| Description | Country affiliation: United States Author Affiliation: Dioguardi AP ( Department of Physics, University of California, Davis, California 95616, USA.); Kissikov T ( Department of Physics, University of California, Davis, California 95616, USA.); Lin CH ( Department of Physics, University of California, Davis, California 95616, USA.); Shirer KR ( Department of Physics, University of California, Davis, California 95616, USA.); Lawson MM ( Department of Physics, University of California, Davis, California 95616, USA.); Grafe HJ ( IFW Dresden, Institute for Solid State Research, P.O. Box 270116, D-01171 Dresden, Germany.); Chu JH ( Department of Applied Physics and Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA.); Fisher IR ( Stanford Institute of Energy and Materials Science, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.); Fernandes RM ( Department of Applied Physics and Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA.); Curro NJ ( Stanford Institute of Energy and Materials Science, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA.) |
| Abstract | We present evidence for nuclear spin-lattice relaxation driven by glassy nematic fluctuations in isovalent P-doped $ BaFe _{ 2 } As _{ 2 } $ single crystals. Both the $ ^{ 75 } As $ and $ ^{ 31 } P $ sites exhibit a stretched-exponential relaxation similar to the electron-doped systems. By comparing the hyperfine fields and the relaxation rates at these sites we find that the As relaxation cannot be explained solely in terms of magnetic spin fluctuations. We demonstrate that nematic fluctuations couple to the As nuclear quadrupolar moment and can explain the excess relaxation. These results suggest that glassy nematic dynamics are a common phenomenon in the iron-based superconductors. |
| File Format | HTM / HTML |
| ISSN | 00319007 |
| e-ISSN | 10797114 |
| Journal | Physical Review Letters |
| Issue Number | 10 |
| Volume Number | 116 |
| Language | English |
| Publisher | American Physical Society |
| Publisher Date | 2016-03-11 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
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