Some Experimental Signatures to look for Time-reversal Violating superconductors

Abstract

We discuss some experimental signatures associated with the topological structures of unconventional superconductor order parameters of form $d_{x^2-y^2}+ix$, where $x=s,p_x\pm p_y$, or $d_{xy}$. Specifically, we study the topological surface states on the $(110)$ and equivalent surfaces of such superconductors which are observable in Andreev tunneling experiments, as well as evaluate the magnetic flux trapped in superconducting rings of such superconductors with multiple grain-boundary Josephson junctions. Previous experiments are examined and several new experiments suggested.

arXiv comment11 pages, 3 figures

References in corpus (10)

• Non Fermi-Liquid States and Pairing of a general Model of Copper-Oxide Metals
• Tunneling into Current-Carrying Surface States of High T${}_c$ Superconductors
• Spontaneous time reversal symmetry breaking in the pseudogap state of high-Tc superconductors
• Magnetic Induction of d + i d Order in High-Tc Superconductors
• Detection and Implications of a Time-reversal breaking state in underdoped Cuprates
• Competing orders and quantum criticality in doped antiferromagnets
• Proposal for an Experiment to Test a Theory of High Temperature Superconductors
• Symmetry Considerations for the Detection of Second-Harmonic Generation in Cuprates in the Pseudogap phase
• Symmetry Considerations for detection of Time-reversal Breaking Phases in Cuprates by X-ray Diffraction and Absorption
• Broken Time Reversal Symmetry and Superconducting States in the Cuprates

Cited by in corpus (6)

• A Theory of the Pseudogap State of the Cuprates
• Josephson effect for superconductors lacking center of inversion
• Resolving the order parameter of High-T${}_c$ Superconductors through quantum pumping spectroscopy
• Experiments using high-Tc/low-Tc Josephson contacts
• Particle-hole spectral asymmetry at the edge of multiorbital noncentrosymmetric superconductors
• Manifestation of the magnetic moments of Cooper pairs in low-temperature properties of superconducting thin-film rings