Discovery of parity-violating Majorana fermions in a chiral superconductor Sr2RuO4

Abstract

We found parity-violating Majorana fermions in a chiral superconductor Sr2RuO4. The current-voltage curves show an anomalous behavior: The induced voltage is an even function of the bias current. The magnetic field dependent results suggest the excitation of the Majorana fermions along the closed chiral edge current of the single domain under bias current. We also discuss the relationship between a change of the chirality and spontaneous magnetization of the single domain Sr2RuO4.

References in corpus (7)

• Non-Abelian Anyons and Topological Quantum Computation
• Topological Superconductivity and Superfluidity
• High Resolution Polar Kerr Effect Measurements of Sr2RuO4: Evidence for Broken Time Reversal Symmetry in the Superconducting State
• Towards identification of a non-abelian state: observation of a quarter of electron charge at $\nu =5/2$ quantum Hall state
• Stability of half-quantum vorticies in p_x+ip_y superconductors
• Anomalous Transport through the p-Wave Superconducting Channel in the 3-K Phase of Sr2RuO4
• Parity Violation in a Single Domain of Spin-Triplet Sr2RuO4 Superconductors

Cited by in corpus (7)

• Chirality of superfluid 3He-A
• Co-appearance of superconductivity and ferromagnetism in a Ca${}_2$RuO${}_4$ nanofilm crystal
• Surface and bulk electronic structure of unconventional superconductor Sr_2RuO_4: unusual splitting of the beta-band
• Metamaterial-based model of the Alcubierre warp drive
• Incommensurate chirality density wave transition in a hybrid molecular framework
• Transition from Majorana to Weyl fermions and anapole moments
• Emergence of the Chern structure using Sr${}_2$RuO${}_4$ nanofilms