Abstract
The electric quadrupole interaction of55Mn nuclei was studied in the weakly ferromagnetic system MnSi using muon level-crossing resonance (μLCR) technique. The temperature dependence of the electric field gradient (EFG) shows a critical behavior near the ferromagnetic transition temperature, indicating that the EFG due to the conduction electron is strongly correlated with the magnetic susceptibility in the itinerant electron magnetism. The temperature dependence of EFG is in reasonable agreement with the self-consistent renormalization theory developed by Moriya and coworkers.
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We gratefully acknowledge helpful discussion with Dr. N. Nishida. We also wish to thank Keith Hoyle and Curtis Ballard for technical support.
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Kadono, R., Brewer, J.H., Chow, K. et al. Critical behavior of electric field gradient in MnSi studied by muon level-crossing resonance. Hyperfine Interact 85, 259–264 (1994). https://doi.org/10.1007/BF02069431
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DOI: https://doi.org/10.1007/BF02069431