Fluctuations and phase separation in a quasi-one-dimensional system

被引:12
|
作者
Dona, Enrico [1 ]
Loerting, Thomas
Penner, Simon
Minca, Mariana
Menzel, Alexander
Bertel, Erminald
Schoiswohl, Johannes
Berkebile, Steven
Netzer, Falko P.
Zucca, Rinaldo
Redinger, Josef
机构
[1] Univ Innsbruck, Inst Chem, A-6020 Innsbruck, Austria
[2] Graz Univ, Inst Phys Expt, A-8010 Graz, Austria
关键词
D O I
10.1103/PhysRevLett.98.186101
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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.
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页数:4
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