Abstract
Interstitial iron (Fei) has strong influence on physical properties of Fe1+xSb (0.08 ⩽ x ⩽ 0.38) compounds. We synthesized Fe1.08Sb single crystals with Fei content close to the lower limit of solution area and investigated its transport and magnetic properties. The ac susceptibility and field dependence of magnetization measurements demonstrate that the transition at ∼9 K is a spin glass transition. By analyzing temperature dependence of susceptibility (χ vs T) and resistivity (d2ρ/dT2 vs T) results, we found a change of scattering in transport properties caused by the ordering of Fei moments in this compound. In addition, the Hall resistivity results reveal that the hole-type carrier is dominant and the topological Hall effect induced by spin chirality is negligible in Fe1.08Sb.
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