Journal
PHYSICAL REVIEW B
Volume 81, Issue 14, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.81.140405
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Funding
- The Ministry of Education, Culture, Sports, Science, and Technology, Japan
- Grants-in-Aid for Scientific Research [22740241, 21540374] Funding Source: KAKEN
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We report an In-115 NMR study of a single-crystal sample of the heavy-fermion compound CeIrIn5. The observed nonlinear variation in Knight shift with static susceptibility is consistent with the two-fluid model of Nakatsuji et al. However, our results can also be understood in terms of a T-dependent hyperfine coupling, which accounts for the spin-lattice relaxation data naturally on the basis of a one-component dynamical susceptibility. In addition, the observed T dependence of the hyperfine coupling is scaled to a density of states given by dynamical mean-field theory.
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