We consider a real analytic compact surface diffeomorphism f , for which the tangent space over the nonwandering set Ω admits a dominated splitting. We study its dynamical determinant df (z) = exp− ∑ n≥1 z n ∑ x∈Fix ∗fn |Det (Df (x)− Id )|, where Fix f denotes the set of fixed points of f with no zero Lyapunov exponents. By combining previous work of Pujals and Sambarino on C surface diffeomorp...

We have investigated magnetic excitations for a mixed phase of hidden order (HO) and the antiferromagnetic (AF) order in U(Ru1−xRhx)2Si2 (x ≤ 0.03) by means of inelastic neutron scattering. The inelastic peaks observed at Q = (1, 0, 0) and (1,0.4,0) in the HO phase for x = 0 and 0.015 at 1.4 K are found to be strongly reduced in the AF dominant compositions of x = 0.02 and 0.03. Similar behavio...