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

Research output: Contribution to journalArticlepeer-review


  • I. Kovacevic
  • P. Babkevich
  • J. O. Piatek
  • G. Boero
  • H. M. Rønnow

Colleges, School and Institutes


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.


Original languageEnglish
Article number214433
JournalPhysical Review B
Issue number21
Publication statusPublished - 28 Dec 2016


  • quantum magnetism

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