Magnetic Field tuning of low energy spin dynamics in the single-atomic magnet Li$_2$(Li$_{1-x}$Fe$_x$)N

30 Sep 2019 Braeuninger S. A. Jesche A. Kamusella S. Seewald F. Fix M. Sarkar R. Zvyagin A. A. Klauss H. -H.

We present a systematic 57Fe-Moessbauer study on highly diluted Fe centers in Li2(Li1-xFex)N single-crystals as a function of temperature and magnetic field applied transverse and longitudinal with respect to the single-ion anisotropy axis. Below 30 K the Fe centers exhibit a giant magnetic hyperfine field of E_A = 70.25(2)T parallel to the axis of strongest electric field gradient Vzz = -154.0(1) V/A2... (read more)

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  • STRONGLY CORRELATED ELECTRONS
  • MATERIALS SCIENCE
  • CHEMICAL PHYSICS