Publications in Scientific Journals:
E. Doná, T. Loerting, S. Penner, M. Minca, A. Menzel, E. Bertel, J. Schoiswohl, S. Berkebile, F. Netzer, R. Zucca, J. Redinger:
"Fluctuations and Phase Separation in a Quasi-One-Dimensional System";
Physical Review Letters,
Phase transitions in a quasi-one-dimensional surface system on a metal substrate are investigated as a function of temperature. Upon cooling the system shows a loss of long-range order, fluctuations, and a transition into an inhomogeneous ground state due to competition of local adsorbate-adsorbate interactions with an incommensurate charge density wave. This agrees with a general phase diagram for correlated systems and high-temperature superconductors. The model surface system allows direct imaging of the fluctuations and the glassy inhomogeneous ground state by scanning tunneling microscopy.
Created from the Publication Database of the Vienna University of Technology.