Abstract
We report on the muon Knight shift in a polycrystalline sample of Y0.95Sc0.05Mn2 that is known as one of the d-electron heavy fermion compounds. Since the muon site is presumed to have a trigonal symmetry, it is expected that the Fourier-transformed (FT) spectrum line shape would exhibit a uni-axial powder pattern which has two edges determined by the parallel and perpendicular components of the Knight shift, K|| and K⊥, where K|| (K⊥) is proportional to the parallel (perpendicular) component of the spin susceptibility, χ|| (χ⊥). The observed FT spectrum at 2 K largely disagrees with the calculated line shape in isotropic (χ|| = χ⊥) and anisotropic (χ|| ≠ χ⊥) cases, suggesting that there must be field- induced staggered magnetization due to strong antiferromagnetic spin correlations.
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