Probing strongly hybridized nuclear-electronic states in a model quantum ferromagnet

We present direct local-probe evidence for strongly hybridized nuclear-electronic spin states of an Ising ferromagnet LiHoF4 in a transverse magnetic field. The nuclear-electronic states are addressed via a magnetic resonance in the GHz frequency range using coplanar resonators and a vector network analyzer. The magnetic resonance spectrum is successfully traced over the entire field-temperature phase diagram, which is remarkably well reproduced by mean-field calculations. Our method can be directly applied to a broad class of materials containing rare-earth ions for probing the substantially mixed nature of the nuclear and electronic moments.


Published in:
Physical Review B, 94, 21, 214433
Year:
2016
ISSN:
2469-9950
Keywords:
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 Record created 2017-02-17, last modified 2020-10-27

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