Fractional Josephson Effect: A Missing Step Is A Key Step
Fan Zhang, Wei Pan
TL;DR
This paper discusses the observation of missing Shapiro steps in a Josephson effect mediated by an accidental Dirac semimetal, providing new evidence for Majorana particles in superconducting materials.
Contribution
It introduces experimental evidence linking missing Shapiro steps to Majorana states in a specific Dirac semimetal-based Josephson junction.
Findings
Missing Shapiro steps observed in the Josephson effect
Evidence supporting the presence of Majorana particles
Highlights the role of Dirac semimetals in topological superconductivity
Abstract
Physicists are searching for superconducting materials that can host Majoranas. New evidence for these elusive particles is provided by missing Shapiro steps in a Josephson effect mediated by an accidental Dirac semimetal.
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Taxonomy
TopicsTopological Materials and Phenomena · Quantum Mechanics and Non-Hermitian Physics · Quantum many-body systems