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Unconventional orbital-charge density wave mechanism in transition metal dichalcogenide 1T-TaS2
Toru Hirata, Youichi Yamakawa, Seiichiro Onari +1
The transition metal dichalcogenide 1T-TaS2 attract growing attention because of the formation of rich density-wave (DW) and superconducting transitions. However, the origin of the…
Valley + Spin Fluctuation Interference Mechanism for Nematic Order in Magic Angle Twisted Bilayer Graphene: Impact of Vertex Corrections
Seiichiro Onari, Hiroshi Kontani
In the magic angle twisted bilayer graphene (MATBG), one of the most remarkable observations is the -symmetry-breaking nematic state. We identify that the nematicity in MATBG…
Odd-parity spin-loop-current order mediated by transverse spin fluctuations in cuprates and related electron systems
Hiroshi Kontani, Youichi Yamakawa, Rina Tazai +1
Unconventional symmetry-breaking phenomena due to nontrivial order parameters attract increasing attention in strongly correlated electron systems. Here, we predict theoretically t…