Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Xiancong Lu"'
Publikováno v:
Chinese Physics B.
We investigate the topological properties of twisted bilayer superconductors with different even-parity pairings in each layer. In the presence of spin-orbit coupling, the Hamiltonian is mapped into an effective odd-parity superconductor. Based on th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8856439396d31b888f6e2dd2a44bce5
https://doi.org/10.1088/1674-1056/acd3e3
https://doi.org/10.1088/1674-1056/acd3e3
Autor:
Lijin Zhan, Yimei Fang, Ruotong Zhang, Xiancong Lu, Tie-yu Lü, Xinrui Cao, Zizhong Zhu, Shunqing Wu
Publikováno v:
Physical chemistry chemical physics : PCCP. 24(25)
Pristine tPenta silicene, which is named for its tilted pentagonal motifs, and its isoelectronic substitutions, Si0.333Ge0.667 and Si0.333Sn0.667, are identified as quantum spin Hall insulators with dissipationless edge states desired for high-speed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b666d39e4248383d058d5c125c26dc68
https://pubmed.ncbi.nlm.nih.gov/35612307
https://pubmed.ncbi.nlm.nih.gov/35612307
Autor:
Xiancong Lu, D. Sénéchal
We study the twisted Hubbard model of a cuprate bilayer at a fixed twist angle $\theta=53.13^{\circ}$ using the variational cluster approximation, a method that treats short-range dynamical correlations exactly. At intermediate interlayer tunneling,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::677ced56bdfac3726d581bf2b4023e63
http://arxiv.org/abs/2112.00487
http://arxiv.org/abs/2112.00487
Dramatically different from the Hermitian systems, the conventional Bulk-Boundary Correspondence (BBC) is broken in the non-Hermitian systems. In this article, we use edge entanglement entropy to characterize the topological properties of non-Hermiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51af77b6ac1cb6bc0523c2564e1d4389
http://arxiv.org/abs/2108.00607
http://arxiv.org/abs/2108.00607
Publikováno v:
Physical Review B. 103
Recently, the square planar ${\mathrm{MoS}}_{2}$ monolayer, which exhibits the Cairo pentagonal tiling (termed as $1\mathrm{P}\text{\ensuremath{-}}{\mathrm{MoS}}_{2}$), was identified as an intrinsic quantum anomalous Hall (QAH) insulator. However, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56e7766533728b07cde54424b6ec9955
https://doi.org/10.1103/physrevb.103.115131
https://doi.org/10.1103/physrevb.103.115131
Autor:
David Sénéchal, Xiancong Lu
We investigate the possibility of spin texture in the bilayer cuprate superconductor $\rm Bi_2Sr_2CaCu_2O_{8+\delta}$ using cluster dynamical mean field theory (CDMFT). The one-band Hubbard model with a small interlayer hopping and a Rashba spin-orbi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec1ba69ac14cd59861d7e5a10f41b24b
http://arxiv.org/abs/2102.12015
http://arxiv.org/abs/2102.12015
Publikováno v:
Optics express. 28(15)
Within the angular-spectrum representation, we study the partially coherent beam propagating in uniaxial crystals along the optical axis. By a method of vortex expansion, we derive the analytical solution for the cross-spectral density (CSD) function
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::472065455bca556e4079635b4c9c8084
https://pubmed.ncbi.nlm.nih.gov/32752435
https://pubmed.ncbi.nlm.nih.gov/32752435
Autor:
Xiancong Lu, Hongxu Liu
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 32(45)
We investigate the effect of mixing Rashba/Dresselhaus spin-orbit couplings (SOCs) on the topological properties of D + p-wave superconductors. It is known that the nodal D + p-wave Rashba superconductors become gapful under a Zeeman magnetic field.
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83fc424e14e38456ba6913f88bd334c8
https://pubmed.ncbi.nlm.nih.gov/32717734
https://pubmed.ncbi.nlm.nih.gov/32717734
Autor:
Xiancong Lu, David Sénéchal
We investigate the possibility of spontaneous loop currents in the two-leg ladder cuprate Sr$_{14-x}$Ca$_x$Cu$_{24}$O$_{41}$ by applying cluster dynamical mean field theory (CDMFT) to a seven-band Hubbard model for that compound, with an exact diagon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54df77b13e1a26f30c6c9426589f4f39
http://arxiv.org/abs/2006.06128
http://arxiv.org/abs/2006.06128
Publikováno v:
Physical Review B. 101
We investigate the higher-order topological insulators on the breathing kagome lattices with $p$-orbital freedom. The bulk topological phase diagram is obtained by calculating the ${Z}_{3}$ Berry phase of the $p$-band model. The existence of a differ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7f392432ef1dd1ec42e14182c02f383
https://doi.org/10.1103/physrevb.101.195143
https://doi.org/10.1103/physrevb.101.195143