Topological degeneracy (Majorana zero-mode) and 1 + 1D fermionic topological order in a magnetic chain on superconductor via spontaneous Z [subscript 2][superscript f] symmetry breaking
We study a chain of ferromagnetic sites, ie nano-particles, molecules or atoms, on a substrate of fully gapped superconductors. We find that under quite realistic conditions, the fermion-number-parity symmetry Z [subscript 2][superscript f] can spontaneously break. In other words, such a chain can...
| Main Authors: | , |
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| Format: | Article |
| Language: | en_US |
| Published: |
IOP Publishing
2017
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| Online Access: | http://hdl.handle.net/1721.1/109200 https://orcid.org/0000-0002-5874-581X |