TY - JOUR
ID - 8317
TI - Doped t-J model of twisted bilayer WSe2
JO - Progress in Physics of Applied Materials
JA - PPAM
LA - en
SN -
AU - Zare, Mohammad Hossein
AU - Mosadeq, Hamid
AD - Department of Physics, Qom University of Technology, Qom, Iran
AD - Department of Physics, Faculty of Science, Shahrekord University, Shahrekord, Iran
Y1 - 2023
PY - 2023
VL - 3
IS - 2
SP - 125
EP - 130
KW - Generalized Kane-Mele model
KW - Mean-field theory
KW - Unconventional superconductivity
KW - Mixing pairing
DO - 10.22075/ppam.2023.32414.1070
N2 - Experiments in twisted materials have shown evidence of exotic phases, such as correlated insulating phases and unconventional superconductivity states. Recently, the topological moiré valance bands with opposite Chern numbers in twisted bilayer WSe have been described with a generalized Kane-Mele model on a honeycomb lattice. Interaction strength, band filling, and bandwidth of twisted materials are well controlled employing varying the twist angle and using three-dimensional dielectric environments. To describe the existence of these exotic phases in the twisted bilayer WSe , we consider the doped moiré Hubbard model in the strongly correlated limit. Here, we are interested in studying the stability of different superconductivity channels by employing the mean-filed theory. We find that the admixture of the nearest-neighbor- - and next-nearest-neighbor- -wave pairings is the superconducting ground state at any doping level. In addition, the obtained results show that the quasi-spin-orbit interaction plays an essential role in the stability of this mixed singlet-triplet superconductivity.
UR - https://ppam.semnan.ac.ir/article_8317.html
L1 - https://ppam.semnan.ac.ir/article_8317_309ec3eb7669263edd6222473a9cbef9.pdf
ER -