^{63,65}Cu NMR and NQR evidence for an unusual spin dynamics in PrCu_2 below 100 K
| Autor: | Sacchetti, A., Weller, M., Gavilano, J. L., Mudliar, R., Pedrini, B., Magishi, K., Ott, H. R., Monnier, R., Delley, B., Ōnuki, Y. |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | Phys. Rev. B 77, 144404 (2008) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.77.144404 |
| Popis: | We report the results of a $^{63,65}$Cu NMR/NQR study probing the intermetallic compound PrCu$_2$. The previously claimed onset of magnetic order at 65 K, indicated in a $\mu$SR study, is not confirmed. Based on our data we discuss different possible reasons for this apparent discrepancy, including a non negligible influence of the implanted muons on their environment. Competing dipolar and quadrupolar interactions lead to unusual features of the magnetic-ion/conduction-electron system, different from those of common intermetallics exhibiting structural or magnetic instabilities. Comment: 8 pages, 7 figures, submitted to Phys Rev B |
| Databáze: | arXiv |
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