Topological superconductivity induced by ferromagnetic metal chains
Recent experiments have provided evidence that one-dimensional (1D) topological
superconductivity can be realized experimentally by placing transition-metal atoms that form …
superconductivity can be realized experimentally by placing transition-metal atoms that form …
Interaction effects in topological superconducting wires supporting Majorana fermions
Among the broad spectrum of systems predicted to exhibit topological superconductivity and
Majorana fermions, one-dimensional wires with strong spin-orbit coupling provide one of the …
Majorana fermions, one-dimensional wires with strong spin-orbit coupling provide one of the …
Majorana fermions emerging from magnetic nanoparticles on a superconductor without spin-orbit coupling
TP Choy, JM Edge, AR Akhmerov… - Physical Review B …, 2011 - APS
There exists a variety of proposals to transform a conventional s-wave superconductor into a
topological superconductor, supporting Majorana fermion midgap states. A necessary …
topological superconductor, supporting Majorana fermion midgap states. A necessary …
Observation of Majorana fermions in ferromagnetic atomic chains on a superconductor
Majorana fermions are predicted to localize at the edge of a topological superconductor, a
state of matter that can form when a ferromagnetic system is placed in proximity to a …
state of matter that can form when a ferromagnetic system is placed in proximity to a …
Topological superconductivity and Majorana fermions in metallic surface states
Heavy metals, such as Au, Ag, and Pb, often have sharp surface states that are split by
strong Rashba spin-orbit coupling. The strong spin-orbit coupling and two-dimensional …
strong Rashba spin-orbit coupling. The strong spin-orbit coupling and two-dimensional …
Topological superconductivity and Majorana fermions in RKKY systems
We consider quasi-one-dimensional Ruderman-Kittel-Kasuya-Yosida (RKKY) systems in
proximity to an s-wave superconductor. We show that a 2 k F peak in the spin susceptibility …
proximity to an s-wave superconductor. We show that a 2 k F peak in the spin susceptibility …
Majorana flat bands and unidirectional Majorana edge states in gapless topological superconductors
We show that an in-plane magnetic field can drive a fully gapped p±ip topological
superconductor into a gapless phase which supports Majorana flat bands (MFBs). Unlike …
superconductor into a gapless phase which supports Majorana flat bands (MFBs). Unlike …
Spin and Majorana polarization in topological superconducting wires
We study a one-dimensional wire with strong Rashba and Dresselhaus spin-orbit coupling
(SOC), which supports Majorana fermions when subject to a Zeeman magnetic field and in …
(SOC), which supports Majorana fermions when subject to a Zeeman magnetic field and in …
Helical order in one-dimensional magnetic atom chains and possible emergence of Majorana bound states
We theoretically obtain the phase diagram of localized magnetic impurity spins arranged in
a one-dimensional chain on top of a one-or two-dimensional electron gas. The interactions …
a one-dimensional chain on top of a one-or two-dimensional electron gas. The interactions …
Majorana bound states in topological insulators without a vortex
We consider a three-dimensional topological insulator (TI) wire with a nonuniform chemical
potential induced by gating across the cross section. This inhomogeneity in chemical …
potential induced by gating across the cross section. This inhomogeneity in chemical …