Trapping Majorana zero modes in vortices of magnetic texture crystals coupled to nodal superconductors
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Trapping Majorana zero modes in vortices of magnetic texture crystals coupled to nodal superconductors. / Steffensen, Daniel; Andersen, Brian M.; Kotetes, Panagiotis.
I: Physical Review B, Bind 104, Nr. 18, 174502, 04.11.2021.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Trapping Majorana zero modes in vortices of magnetic texture crystals coupled to nodal superconductors
AU - Steffensen, Daniel
AU - Andersen, Brian M.
AU - Kotetes, Panagiotis
PY - 2021/11/4
Y1 - 2021/11/4
N2 - We propose a mechanism for opening a full bulk energy gap and inducing vortex Majorana zero modes (MZMs) in nodal superconductors (SCs). We show that this becomes possible by coupling the nodal SC of interest to a magnetic texture crystal. The latter consists of superpositions of magnetic textures which repeat periodically in space according to suitable wave vectors that enable spin-flip scattering between all pairs of nodes of the SC, and thus open a full gap in its bulk energy spectrum. In this event, MZMs can be trapped in spin or shift vortices introduced in the magnetic texture crystal. Our approach is generic and applies to nodal SCs of spin-singlet, -triplet, or -mixed type of pairing. Therefore it promises to find application in a variety of nodal SCs, where the magnetic textures appear either spontaneously due to electron-electron interactions or are imposed by nanomagnets or become induced by coupling to a lattice of localized magnetic moments.
AB - We propose a mechanism for opening a full bulk energy gap and inducing vortex Majorana zero modes (MZMs) in nodal superconductors (SCs). We show that this becomes possible by coupling the nodal SC of interest to a magnetic texture crystal. The latter consists of superpositions of magnetic textures which repeat periodically in space according to suitable wave vectors that enable spin-flip scattering between all pairs of nodes of the SC, and thus open a full gap in its bulk energy spectrum. In this event, MZMs can be trapped in spin or shift vortices introduced in the magnetic texture crystal. Our approach is generic and applies to nodal SCs of spin-singlet, -triplet, or -mixed type of pairing. Therefore it promises to find application in a variety of nodal SCs, where the magnetic textures appear either spontaneously due to electron-electron interactions or are imposed by nanomagnets or become induced by coupling to a lattice of localized magnetic moments.
KW - NON-ABELIAN STATISTICS
KW - BOUND-STATES
KW - FERMIONS
KW - SIGNATURE
KW - LATTICE
KW - WAVE
U2 - 10.1103/PhysRevB.104.174502
DO - 10.1103/PhysRevB.104.174502
M3 - Journal article
VL - 104
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 18
M1 - 174502
ER -
ID: 285311466