Hyperfine interactions in MnAs studied by perturbed angular correlations of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>γ</mml:mi></mml:mrow></mml:math>-rays using the probe Br<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>77</mml:mn></mml:mrow></mml:msup><mml:mo>→</mml:mo></mml:mrow></mml:math>Se<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><…
Physical review. B, Condensed matter and materials physics