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Reduced-dimensional systems

Probe for electronic dimensionality

The Nernst effect is increasingly used to characterize a material's electronic structure. The discovery of an unexpected Nernst response in graphite establishes the role of dimensionality on this effect, and provides a means of distinguishing bulk and surface contributions to it.

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Figure 1: Idealized DOS and the Nernst-effect signal of 2D systems.


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Li, L. Probe for electronic dimensionality. Nature Phys 6, 7–8 (2010).

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