首页|Topological superconductors with spin-triplet pairings and Majorana Fermi arcs

Topological superconductors with spin-triplet pairings and Majorana Fermi arcs

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We construct a three-dimensional topological superconductor Bogoliubov-de Gennes(BdG)Hamiltonian with the normal state being a three-dimensional topological insulator.By introducing inter-orbital spin-triplet pairings term Δ3,there are topological Majorana nodes in the bulk and they are connected by Majorana Fermi arcs on the surface,similar to the case of Weyl semimetal.Furthermore,by adding an inversion-breaking term to the normal state,momentum-independent pairing terms with different parities can coexist in the BdG Hamiltonian,which creates more Majorana modes similar to Andreev bound states and a richer phase diagram.

topological surface statestopological superconductorstopological nodesWeyl pointsMajorana Fermi arcs

黄石、罗熙

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College of Science,University of Shanghai for Science and Technology,Shanghai 200093,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of China

1217406711804223

2024

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子:0.995
ISSN:1674-1056
年,卷(期):2024.33(8)