dorsal/arxiv
View SchemaKinetic Blockade and Filamentary Pair Density Waves in Strain-Engineered Graphene
| Authors | Tao Zhou |
|---|---|
| Categories | |
| ArXiv ID | 2601.08586vv1 |
| URL | https://arxiv.org/abs/2601.08586 |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
We investigate superconductivity in strain-engineered graphene using a self-consistent Bogoliubov-de Gennes approach. Challenging the paradigm that the high density of states in flat bands universally enhances pairing, we identify a "kinetic blockade" mechanism: strain-induced sublattice polarization segregates electronic states, rendering these singularities inert. Instead, superconductivity emerges as robust filaments at geometric nodes, forming a pair density wave. This state features a sign-reversing order parameter, detectable via impurity-induced zero-energy modes. Our findings reveal a unique geometric origin for filamentary superconductivity, offering new perspectives on strain-tuned quantum phases in Dirac materials.
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"abstract": "We investigate superconductivity in strain-engineered graphene using a self-consistent Bogoliubov-de Gennes approach. Challenging the paradigm that the high density of states in flat bands universally enhances pairing, we identify a \"kinetic blockade\" mechanism: strain-induced sublattice polarization segregates electronic states, rendering these singularities inert. Instead, superconductivity emerges as robust filaments at geometric nodes, forming a pair density wave. This state features a sign-reversing order parameter, detectable via impurity-induced zero-energy modes. Our findings reveal a unique geometric origin for filamentary superconductivity, offering new perspectives on strain-tuned quantum phases in Dirac materials.",
"arxiv_id": "2601.08586",
"authors": [
"Tao Zhou"
],
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"cond-mat.supr-con"
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"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "Kinetic Blockade and Filamentary Pair Density Waves in Strain-Engineered Graphene",
"url": "https://arxiv.org/abs/2601.08586",
"version": "v1"
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