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Published on: July 12, 2016
Quantized hyperfine field at an implanted micro+ site in PrPb3: interplay between localized f electrons and an
T U Ito1, W Higemoto, K Ohishi
1Department of Physics, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan.
Abstract:
The local effect of an interstitial hydrogenlike particle on localized f electrons was studied in PrPb3 by means of micro+ spin rotation and relaxation. Spontaneous micro+ spin precession with harmonic frequencies was observed for the first time in f electron compounds. We demonstrate that the signal is derived from a coupling between the micro+ spin and the hyperfine-enhanced nuclear spin of nearest neighbor (NN) 141Pr with Ising-like anisotropy. The signal also suggests a marked suppression of spin dynamics of the NN 141Pr in comparison with that of the bulk 141Pr. These facts strongly indicate modification of the f electronic state due to the interstitial charged particle.
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