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arXiv · 0709.3009

^{63,65}Cu NMR and NQR evidence for an unusual spin dynamics in PrCu_2 below 100 K

A. Sacchetti·M. Weller·J. L. Gavilano·R. Mudliar·B. Pedrini·K. Magishi·H. R. Ott·R. Monnier·B. Delley·Y. Ōnuki
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Abstract

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 $μ$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.

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A. Sacchetti, M. Weller, J. L. Gavilano, R. Mudliar, B. Pedrini, K. Magishi, H. R. Ott, R. Monnier, B. Delley, Y. Ōnuki. 2007-09-19. ^{63,65}Cu NMR and NQR evidence for an unusual spin dynamics in PrCu_2 below 100 K. https://doi.org/10.1103/physrevb.77.144404

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