Study of the hyperfine fields in the BaFe$_2$As$_2$ family and its relation to the magnetic moment

Gerald Derondeau; Ján Minár; Hubert Ebert

doi:10.1103/PhysRevB.94.214508

paper

Study of the hyperfine fields in the BaFe $_{2}$ As $_{2}$ family and its relation to the magnetic moment

arXiv:1609.08802 · doi:10.1103/PhysRevB.94.214508

Abstract

The hyperfine field $B_{hf}$ and the magnetic properties of the BaFe $_{2}$ As $_{2}$ family are studied using the fully relativistic Dirac formalism for different types of substitution. The study covers electron doped Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$ and Ba(Fe $_{1 - x}$ Ni $_{x}$ ) $_{2}$ As $_{2}$ , hole doped (Ba $_{1 - x}$ K $_{x}$ )Fe $_{2}$ As $_{2}$ and also isovalently doped Ba(Fe $_{1 - x}$ Ru $_{x}$ ) $_{2}$ As $_{2}$ and BaFe $_{2}$ (As $_{1 - x}$ P $_{x}$ ) $_{2}$ for a wide range of the concentration $x$ . For the substituted compounds the hyperfine fields show a very strong dependence on the dopant type and its concentration $x$ . Relativistic contributions were found to have a significantly stronger impact for the iron pnictides when compared to bulk Fe. As an important finding, we demonstrate that it is not sensible to relate the hyperfine field $B_{hf}$ to the average magnetic moment $μ$ of the compound, as it was done in earlier literature.

Study of the hyperfine fields in the BaFe $_{2}$ As $_{2}$ family and its relation to the magnetic moment

Abstract

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Study of the hyperfine fields in the BaFe2​As2​ family and its relation to the magnetic moment

Abstract

References in corpus (38)

Cited by in corpus (2)

Study of the hyperfine fields in the BaFe $_{2}$ As $_{2}$ family and its relation to the magnetic moment