Výsledky vyhledávání - "Guo-Qiao Zha"

Topological phases and tunable Majorana zero modes in Rashba superconducting systems in the presence of Zeeman field

Autor: Yue Xie, Guo-Qiao Zha

Publikováno v: Europhysics Letters. 141:26003

In the framework of the extended Bogoliubov-de Gennes theory, topological phase transitions and Majorana zero modes are investigated by diagonalizing the tight-binding model Hamiltonian for two-dimensional superconducting systems with Rashba spin-orb

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a9d60799acd25e5619a9cf7b879b9fc
https://doi.org/10.1209/0295-5075/acb1d1

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Topological defect states in mesoscopic superconductors with mixed pairing symmetries

Autor: Guo-Qiao Zha, Rui-Feng Chai

Publikováno v: The European Physical Journal B. 94

In the framework of the microscopic Bogoliubov–de Gennes theory, we investigate the vortex and skyrmionic states as well as phase transitions between them in mesoscopic superconducting squares with coexisted spin-triplet (p-wave) and spin-singlet (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4bb35b24edc752b360b990a34313e5e4
https://doi.org/10.1140/epjb/s10051-021-00206-8

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Vortical patterns in bulk superconducting systems with mixed pairing orders

Autor: Guo-Qiao Zha, Rui-Feng Chai

Publikováno v: The European Physical Journal B. 94

Based on a model Hamiltonian including the on-site repulsive interaction among the electrons, we investigate the spatial configurations of mixed spin-triplet (dominant p-wave) and spin-singlet (coexisted s-wave and d-wave) pairing symmetries in bulk

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b606e2a13723977fdf8eb1497036a3ef
https://doi.org/10.1140/epjb/s10051-021-00104-z

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Skyrmionic chains and lattices in s+id superconductors

Autor: Milorad V. Milošević, Yan-Yan Zhang, Ling-Feng Zhang, Shi-Ping Zhou, Guo-Qiao Zha

Publikováno v: Physical review B

We report characteristic vortex configurations in $s+id$ superconductors with time reversal symmetry breaking, exposed to magnetic field. A vortex in the $s+id$ state tends to have an opposite phase winding between $s-$ and $d-$wave condensates. We f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eac1afa89d624f34bb36f992fb645bde
https://doi.org/10.1103/physrevb.101.064501

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Impurity bound states in mesoscopic topological superconducting loops

Autor: Shi-Ping Zhou, Yan-Yan Jin, Guo-Qiao Zha

Publikováno v: Physica C: Superconductivity and its Applications. 549:126-130

We study numerically the effect induced by magnetic impurities in topological s-wave superconducting loops with spin-orbit interaction based on spin-generalized Bogoliubov-de Gennes equations. In the case of a single magnetic impurity, it is found th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1a5ef5fd8a5b954e28b0ebbc05b3bde8
https://doi.org/10.1016/j.physc.2018.03.007

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Intermittent superconductivity and unconventional vortex configurations in nanoscale superconducting noncircular systems

Autor: Shi-Ping Zhou, Guo-Qiao Zha, Ze-Lei Yang

Publikováno v: Physica C: Superconductivity and its Applications. 544:6-12

The flux-dependent evolution of vortex states in nanoscale superconducting noncircular systems is investigated based on the Bogoliubov-de Gennes theory. For a superconductor with the coherence length comparable to the Fermi wavelength, the spatial va

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c031096a8011d42bbddb4ebb1e966b1a
https://doi.org/10.1016/j.physc.2017.11.003

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