Majorana vortex modes in spin-singlet chiral superconductors with noncollinear spin ordering: Local density of states study : научное издание

Zlotnikov A. O.

Дополнительные ссылки: eLibrary

База данных: Каталог библиотеки СФУ

Библиографическое описание: Majorana vortex modes in spin-singlet chiral superconductors with noncollinear spin ordering: Local density of states study : научное издание / A. O. Zlotnikov. - Текст : непосредственный // Physical Review B. - 2023. - Т.107, №14. - P. 144513. - ISSN 2469-9950. - ISSN 2469-9969, DOI 10.1103/physrevb.107.144513.

Аннотация: In this study, topologically nontrivial edge and vortex bound states are described in the coexistence phase of chiral spin-singlet superconductivity and noncollinear spin ordering on a triangular lattice in the presence of few (up to four) vortices. We consider the topological phase transition induced by the magnetic order between the phase hosting Majorana modes and the initial phase of the chiral $d$-wave superconductivity supporting non-Majorana modes which is also topologically nontrivial. The change of the excitation spectrum at the critical point is obtained in both cases of open and periodic boundary conditions in the presence of vortices. It is proved that zero-energy Majorana modes localized at vortex cores are caused by noncollinear long-range magnetic ordering. Even though nearby excitation energies of subgap states including the edge-localized and vortex-localized states are very close to each other, the energy difference between different vortex bound states is an order of magnitude higher. This difference determines the energy gap for Majorana vortex modes separating them from other vortex bound states. It is found that even in the presence of noncollinear spin ordering its value can be estimated from the excitation energy of vortex bound states in the pure chiral $d$-wave state for the nonmagnetic case. By studying local density of states near the vortex cores the possibility to experimentally detect the described Majorana vortex modes by scanning tunneling microscopy is discussed. It is demonstrated that Majorana vortex modes and Majorana antivortex modes induced by noncollinear magnetism have different features in energy and spatially resolved density of states due to the chiral symmetry on the superconducting order parameter.

Год издания: 2023

Авторы: Zlotnikov A. O.

Издательство: American Physical Society

Источник: Physical Review B

Выпуск: Т.107, №14

Номера страниц: 144513

Держатель оригинала документа: Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia

Количество экземпляров:

Твёрдая копия издания отсутствует в фонде библиотеки

Показать дополнительные сведения

Effect of local Coulomb interaction on Majorana corner modes: Weak and strong correlation limits : научное издание

Aksenov S. V. и др.
2023 год

Coexistence of gapless and gapped vortex modes with Majorana corner states in a two-dimensional… : научное издание

Fedoseev A. D. и др.
2025 год

Occurrence of Topologically Nontrivial Phases, Cascade of Quantum Transitions, and Identification… : научное издание

Val'kov V.V. и др.
2019 год

Majorana zero modes in the coexistence phase of chiral superconductivity and 120°-type magnetic… : научное издание

Val'kov V.V. и др.
2017 год

Stability of the Coexistence Phase of Chiral Superconductivity and Noncollinear Spin Ordering with… : научное издание

Val'kov V.V. и др.
2019 год

MAJORANA FERMIONS IN THE COEXISTENCE PHASE OF NONCOLLINEAR MAGNETIC ORDERING AND CHIRAL… : доклад, тезисы доклада

Val'kov V.V. и др.
2017 год

Commensurate spin density wave in LaFeAsO: A local probe study : научное издание

Klauss H.-H. и др.
2008 год

Higher-order magnetic skyrmions in nonuniform magnetic fields : научное издание

Shustin M. S. и др.
2023 год

Fermion Parity of Phases Supporting Multiple Majorana Modes in a Superconducting Nanowire : научное издание

Gamov Alexander и др.
2023 год

Топологическая сверхпроводимость и майорановские состояния в низкоразмерных системах : научное издание

Вальков Валерий Владимирович и др.
2022 год

Tuning Q-Factor and Perfect Absorption Using Coupled Tamm States on Polarization-Preserving… : научное издание

Rudakova Natalya V. и др.
2023 год

Substitution Effects in Spin-Polarized (Cr4-xFex)0.5AC (A = Ge, Si, Al) MAX Phases : научное издание

Fedorova Natalja A. и др.
2023 год

Interplay between Magnetism and Topology in MnBi2Te4 : научное издание

Val’kov V. V. и др.
2023 год

О дираковской массе хаббардовских фермионов в сильно коррелированном топологическом сверхпроводнике… : научное издание

Аксенов С. В. и др.
2023 год

Phonon softening and atomic modulations in mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML… : статья из журнала

Korshunov A.N. и др.
2024 год

Spin Polarization and Flat Bands in Eu-Doped Nanoporous and Twisted Bilayer Graphenes : научное издание

Melchakova Iu. A. и др.
2023 год

Библиотечно-издательский комплекс СФУ

Majorana vortex modes in spin-singlet chiral superconductors with noncollinear spin ordering: Local density of states study : научное издание
статья из журнала

Похожие публикации