The surface electronic structure of Br/Pt(110) phases

Zhang, Zhenrong; Minca, Mariana; Menzel, A.; Bertel, E.

doi:10.1016/j.susc.2004.05.087

Cited by 3 publications

(1 citation statement)

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“…Particular attention has to be paid to saddle points, because they contribute the lion's share to the DOS in 2D, as discussed above. Saddle points at E F are indeed present in Pt(110) [69] and the Br/Pt system, but their role is not yet clear [75]. Furthermore the transition should be investigated as a function of temperature at fixed coverage.…”

Section: Peierls Phasesmentioning

confidence: 99%

Fermi surface tuning in two-dimensional surface systems

Bertel¹,

Doná²

2007

J. Phys.: Condens. Matter

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Competing electronic interactions can be used to tune materials into different phases with interesting and sometimes exotic properties, ranging from magnetic long-range order to superconductivity. Such electronic interactions are particularly pronounced in low-dimensional systems, where electronic correlation is enhanced. On surfaces, the electronic states are easily accessible for manipulation by doping, adsorption or quantum confinement. A deliberate shift of the Fermi surface of 2D or 1D electron states can have a significant influence on chemical activity, adsorbate–adsorbate interactions, surface diffusion etc. More strikingly, it may drive phase transitions and can perhaps be used to realize Peierls-distorted, magnetically ordered and even superconducting phases in two dimensions. Using the Br/Pt(110) system as a case study, the possibility and the problems of a (quasi)continuous variation of a Peierls phase by Fermi surface tuning are examined.

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Section: Peierls Phasesmentioning

confidence: 99%