Zeitschriftenartikel:
E. Svanidze, T. Besara, J. Wang, D. Geiger, L. Prochaska, J.M. Santiago, J. Lynn, S. Paschen, T. Siegrist, E. Morosan:
"Quantum critical point in the Sc-doped itinerant antiferromagnet TiAu";
Physical Review B,
95
(2017),
220405;
S. 220405-1
- 220405-5.
Kurzfassung englisch:
We 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 Ti1−xScxAu, a doping amount of
xc = 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 Cp/T ∝ −lnT , 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 = xc.
"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1103/PhysRevB.95.220405
Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.