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Catastrophe theory classification of Fermi surface topological transitions in two dimensions
We classify all possible singularities in the electronic dispersion of two-dimensional systems that occur when the Fermi surface changes topology, using catastrophe theory. For systems with up to seven control parameters (i.e., pressure, strain, bias voltage, etc), the theory guarantees that the sin...
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Main Authors: | , , , |
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Format: | Default Article |
Published: |
2020
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Subjects: | |
Online Access: | https://hdl.handle.net/2134/13514248.v1 |
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