The nontrivial ground state topology in the coexistence phase of chiral d-wave superconductivity and 120-degree magnetic order on a triangular lattice
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2017.11.115
Abstract: Abstract The Z 2 topological invariant is defined in the chiral d-wave superconductor having a triangular lattice in the presence of the 120-degree magnetic ordering. Analyzing the Z 2 invariant, we determine the conditions of… read more here.
Keywords: triangular lattice; 120 degree; degree magnetic; topology ... See more keywords
Chiral p-wave pairing of ultracold fermionic atoms due to a quadratic band touching*
Sign Up to like & getrecommendations! Published in 2018 at "Chinese Physics B"
DOI: 10.1088/1674-1056/27/2/027402
Abstract: We study the superfuild ground state of ultracold fermions in optical lattices with a quadratic band touching. Examples are a checkerboard lattice around half filling and a kagome lattice above one third filling. Instead of… read more here.
Keywords: quadratic band; chiral wave; wave pairing; band touching ... See more keywords
Chiral p -wave superconductors have complex coherence and magnetic field penetration lengths
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.174514
Abstract: We show that in superconductors that break time-reversal symmetry and have anisotropy, such as p + ip materials, all order parameters and magnetic modes are mixed. Excitation of the gap fields prod ... read more here.
Keywords: complex coherence; superconductors complex; magnetic field; coherence magnetic ... See more keywords
Antiferromagnetism and chiral d -wave superconductivity from an effective t−J−D model for twisted bilayer graphene
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.180506
Abstract: Starting from the strong-coupling limit of an extended Hubbard model, we develop a spin-fermion theory to study the insulating phase and pairing symmetry of the superconducting phase in twisted bilayer graphene. Assuming that the insulating… read more here.
Keywords: bilayer graphene; twisted bilayer; model; chiral wave ... See more keywords
Surface magnetism in a chiral d-wave superconductor with hexagonal symmetry
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.140502
Abstract: Surface properties are examined in a chiral d-wave superconductor with hexagonal symmetry, whose one-body Hamiltonian possesses the intrinsic spin-orbit coupling identical to the one characterizing the topological nature of the Kane-Mele honeycomb insulator. In the… read more here.
Keywords: surface; wave superconductor; chiral wave; hexagonal symmetry ... See more keywords
Interband interference effects at the edge of a multiband chiral p-wave superconductor
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.224504
Abstract: Chiral superconductors support chiral edge modes and potentially spontaneous edge currents at their boundaries. Motivated by the putative multiband chiral p-wave superconductor Sr$_2$RuO$_4$, we study the influence of the interference between different bands at the… read more here.
Keywords: chiral wave; interference; wave superconductor; edge ... See more keywords
Anomalous Hall effect in semiconductor quantum wells in proximity to chiral p -wave superconductors
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.205301
Abstract: By using the gauge-invariant optical Bloch equation, we perform a microscopic kinetic investigation on the anomalous Hall effect in chiral p-wave superconducting states. Specifically, the intrinsic anomalous Hall conductivity in the absence of the magnetic… read more here.
Keywords: hall; chiral wave; hall effect; anomalous hall ... See more keywords