Topological superconductivity induced by ferromagnetic metal chains

J Li, H Chen, IK Drozdov, A Yazdani, BA Bernevig… - Physical Review B, 2014 - APS
Recent experiments have provided evidence that one-dimensional (1D) topological
superconductivity can be realized experimentally by placing transition-metal atoms that form …

Interaction effects in topological superconducting wires supporting Majorana fermions

EM Stoudenmire, J Alicea, OA Starykh… - Physical Review B …, 2011 - APS
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 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 …

Observation of Majorana fermions in ferromagnetic atomic chains on a superconductor

S Nadj-Perge, IK Drozdov, J Li, H Chen, S Jeon, J Seo… - Science, 2014 - science.org
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 …

Topological superconductivity and Majorana fermions in metallic surface states

AC Potter, PA Lee - Physical Review B—Condensed Matter and Materials …, 2012 - APS
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 …

Topological superconductivity and Majorana fermions in RKKY systems

J Klinovaja, P Stano, A Yazdani, D Loss - Physical review letters, 2013 - APS
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 …

Majorana flat bands and unidirectional Majorana edge states in gapless topological superconductors

CLM Wong, J Liu, KT Law, PA Lee - Physical Review B—Condensed Matter …, 2013 - APS
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 …

Spin and Majorana polarization in topological superconducting wires

D Sticlet, C Bena, P Simon - Physical Review Letters, 2012 - APS
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 …

Helical order in one-dimensional magnetic atom chains and possible emergence of Majorana bound states

Y Kim, M Cheng, B Bauer, RM Lutchyn, S Das Sarma - Physical Review B, 2014 - APS
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 …

Majorana bound states in topological insulators without a vortex

HF Legg, D Loss, J Klinovaja - Physical Review B, 2021 - APS
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 …