Svanidze, E.Besara, T.Wang, J.K.Geiger, D.Prochaska, L.Santiago, J.M.Lynn, J.W.Paschen, S.Siegrist, T.Morosan, E.2017-07-252017-07-252017Svanidze, E., Besara, T., Wang, J.K., et al.. "Quantum critical point in the Sc-doped itinerant antiferromagnet TiAu." <i>Physical Review B,</i> 95, no. 22 (2017) American Physical Society: https://doi.org/10.1103/PhysRevB.95.220405.https://hdl.handle.net/1911/95223We present an experimental realization of a quantum critical point in an itinerant antiferromagnet composed of nonmagnetic constituents, TiAu. By partially substituting Ti with Sc in Ti 1 − x Sc x Au , a doping amount of x c = 0.13 ± 0.01 induces a quantum critical point with minimal disorder effects. The accompanying non-Fermi liquid behavior is observed in both the resistivity ρ ∝ T and specific heat C p / T ∝ − ln T , characteristic of a two-dimensional antiferromagnet. The quantum critical point is accompanied by an enhancement of the spin fluctuations, as indicated by the diverging Sommerfeld coefficient γ at x = x c .engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articleQuantum_critical_pointhttps://doi.org/10.1103/PhysRevB.95.220405