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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…
Emergence of Charge Loop Current in Geometrically Frustrated Hubbard Model: Functional Renormalization Group Study
Rina Tazai, Youichi Yamakawa, Hiroshi Kontani
Spontaneous current orders due to odd-parity order parameters attract increasing attention in various strongly correlated metals. Here, we discover a novel spin-fluctuation-driven…
Prediction of pseudogap formation due to -wave bond-order in organic superconductor -(BEDT-TTF)X
Rina Tazai, Youichi Yamakawa, Masahisa Tsuchiizu +1
Rich hidden unconventional orders with pseudogap formation, such as the inter-site bond-order (BO), attract increasing attention in condensed matter physics. Here, we investigate t…
Non-Fermi liquid transport in the vicinity of nematic quantum critical point of FeSeS superconductor
W. K. Huang, S. Hosoi, M. Čulo +9
Non-Fermi liquids are strange metals whose physical properties deviate qualitatively from those of conventional metals due to strong quantum fluctuations. In this paper, we report…
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…