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Topological superconductors with spin-triplet pairings and Majorana Fermi arcs

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摘要 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△3,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 Bd G Hamiltonian,which creates more Majorana modes similar to Andreev bound states and a richer phase diagram.
作者 黄石 罗熙 Shi Huang;Xi Luot(College of Science,University of Shanghai for Science and Technology,Shanghai 200093,China)
机构地区 College of Science
出处 《Chinese Physics B》 SCIE EI CAS CSCD 2024年第8期453-458,共6页 中国物理B(英文版)
基金 Project supported by the National Natural Science Foundation of China (Grant Nos.12174067 and 11804223)。
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