NMR investigation of the Knight shift anomaly in CeIrIn5 at high magnetic fields

Abstract

We report nuclear magnetic resonance Knight shift data in the heavy fermion material CeIrIn5 at fields up to 30 T. The Knight shift of the In displays a strong anomaly, and we analyze the results using two different interpretations. We find that the Kondo lattice coherence temperature and the effective mass of the heavy electrons remains largely unaffected by the magnetic field, despite the fact that the Zeeman energy is on the order of the coherence temperature.

5 pages, 5 figures; to appear in Phys. Rev. B

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• Universal Behavior in Heavy Electron Materials
• Emergent states in heavy electron materials
• Long range order and two-fluid behavior in heavy electron materials
• Nuclear magnetic resonance in the heavy fermion superconductors
• Coherence scale of coupled Anderson impurities
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Cited by in corpus (4)

• Field-Induced Lifshitz Transition without Metamagnetism in CeIrIn${}_5$
• Infrared properties of heavy-fermions: evolution from weak to strong hybridizations
• Evolution of hyperfine parameters across a quantum critical point in CeRhIn${}_5$
• NMR Evidence of anisotropic Kondo liquid behavior in CeIrIn${}_5$