126 citations · 475 across the 29 of their papers we have counts for
29 papers
Prominent Intrinsic Orbital Hall Effect in the 135 Kagome Metal Family and Orbital Responses in the Loop-Current Phase
Jianxin Huang, Rina Tazai, Youichi Yamakawa +1
The study of electronic orbital degrees of freedom, including the generation and control of orbital currents and orbital angular momentum, has emerged as a vibrant research field.…
Giant critical current peak induced by pressure in kagome superconductor RbVSb
Lingfei Wang, Wenyan Wang, Tsz Fung Poon +11
Superconductivity can coexist or compete with other orders such as magnetism or density waves. Optimizing superconductivity requires identifying competing orders that may disrupt C…
Microscopic origin of period-four stripe charge-density-wave in kagome metal CsVSb
Yuma Murata, Rina Tazai, Youichi Yamakawa +2
The interplay between unconventional density waves and exotic superconductivity has attracted growing interest. Kagome superconductors ($A = \rm{K}, \rm{Rb}, \…
Impact of multiband effects on non-Fermi-liquid transport phenomena in bilayer nickelates
Seiichiro Onari, Daisuke Inoue, Rina Tazai +2
Recently discovered high- superconductivity in thin-film bilayer nickelates LaNiO under ambient pressure has attracted great interest. Non-Fermi-liquid transport b…
Nematic and chiral superconductivity emerging within the loop-current phase in kagome metals
Rina Tazai, Youichi Yamakawa, Hiroshi Kontani
The kagome metals VSb ( Cs, Rb, K) host multiple symmetry-breaking phases, including charge-density-wave and loop-current orders, and exhibit highly exotic supercon…
Impact of charge-density-wave pattern on the superconducting gap in V-based kagome superconductors
T. Nagashima, K. Ishihara, Y. Yamakawa +12
Kagome metals VSb ( K, Rb, Cs) provide a compelling platform to explore the interplay between superconductivity (SC) and charge-density-wave (CDW) orders. While dist…
Origin of switchable quasiparticle-interference chirality in loop-current phase of kagome metals measured by scanning-tunneling-microscopy
Seigo Nakazawa, Rina Tazai, Youichi Yamakawa +2
In the kagome superconductors AV3Sb5 (A=Cs,Rb,K), a cascade of correlated electron phases cause exotic symmetry-breaking quantum states. In particular, the dissipationless chiral l…
Paramagnon-Interference Mechanism for Three-Dimensional Bond Order in Kagome Metals AVSb (A=Cs, Rb, K): Analysis by the Density-Wave Equation
Seiichiro Onari, Rina Tazai, Youichi Yamakawa +1
The mechanism of CDW and its 3D structure are important fundamental issues in kagome metals. We have previously shown that, based on a 2D model, bond order (BO) emerges…
Quantum-metric-induced giant and reversible nonreciprocal transport phenomena in chiral loop-current phases of kagome metals
Rina Tazai, Youichi Yamakawa, Takahiro Morimoto +1
Rich spontaneous symmetry-breaking phenomena with nontrivial quantum geometric properties in metals represent central issues in condensed matter physics. In this context, the emerg…
Photoinduced non-reciprocal magnetism
Ryo Hanai, Daiki Ootsuki, Rina Tazai
Out of equilibrium, the action-reaction symmetry of the interactions is often broken, leading to the emergence of various collective phenomena with no equilibrium counterparts. Alt…
Giant Impurity Effects on Charge Loop Current Order States in Kagome Metals
Seigo Nakazawa, Rina Tazai, Youichi Yamakawa +2
The exotic electronic states in the charge loop current (cLC) phase, in which the permanent charge current breaks the time-reversal symmetry, have been attracting increasing attent…
Real-space Loop Current Pattern in Time-reversal-symmetry Breaking Phase in Kagome Metals
Koki Shimura, Rina Tazai, Youichi Yamakawa +2
The charge loop current (cLC) state has attracted increasing attention in kagome metals. Here, we calculate the spontaneous currents along the nearest sites and , ,…
Odd-parity quadrupole order and induced nonreciprocal transport in the kagome metal CsTiBi driven by quantum interference
Jianxin Huang, Youichi Yamakawa, Rina Tazai +2
Kagome metals present a fascinating platform of quantum phases thanks to the interplay between the geometric frustration and strong electron correlation. Here, we propose the emerg…
Low temperature phase transitions under CDW state in kagome metals AV3Sb5 (A=Cs,Rb,K): Significance of mix-type Fermi surface electron correlations
Jianxin Huang, Rina Tazai, Youichi Yamakawa +2
To understand the multistage phase transitions in V-based kagome metals inside the charge-density-wave (CDW) phase, we focus on the impact of the "mix-type" Fermi surface because i…
Drastic magnetic-field-induced chiral current order and emergent current-bond-field interplay in kagome metals
Rina Tazai, Youichi Yamakawa, Hiroshi Kontani
In kagome metals, the chiral current order with time-reversal-symmetry-breaking is the source of various exotic electronic states, while the method of controlling the current o…
Unconventional density waves and superconductivities in Fe-based superconductors and other strongly correlated electron systems
Hiroshi Kontani, Rina Tazai, Youichi Yamakawa +1
To seek high- pairing mechanism, many scientists have focused on the mysterious spontaneous rotational symmetry breaking above Tc, such as nematic order at and smectic o…
Charge-loop current order and Z3 nematicity mediated by bond-order fluctuations in kagome metal AV3Sb5 (A=Cs,Rb,K)
Rina Tazai, Youichi Yamakawa, Hiroshi Kontani
Recent experiments on geometrically frustrated kagome metal AV3Sb5 (A=K, Rb, Cs) have revealed the emergence of the charge loop current (cLC) order near the bond order (BO) phase.…
A Rigorous Formalism of Unconventional Symmetry Breaking in Fermi Liquid Theory and Its Application to Nematicity in FeSe
Rina Tazai, Shun Matsubara, Youichi Yamakawa +2
Unconventional symmetry breaking due to nonlocal order parameters has attracted considerable attention in many strongly correlated metals. Famous examples are the nematic order in…
Mechanism of exotic density-wave and beyond-Migdal unconventional superconductivity in kagome metal AV3Sb5 (A=K, Rb, Cs)
Rina Tazai, Youichi Yamakawa, Seiichiro Onari +1
Exotic quantum phase transitions in metals, such as the nematic and smectic states, were discovered one after another and found to be universal now. The emergence of unconventional…
- and -wave quantum liquid crystal orders in cuprate superconductors, -(BEDT-TTF)X, and coupled chain Hubbard models: functional-renormalization-group analysis
Rina Tazai, Youichi Yamakawa, Masahisa Tsuchiizu +1
Unconventional symmetry breaking without spin order,such as the rotational symmetry breaking (=nematic or smectic) orders as well as the spontaneous loop-current orders, have been…
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…
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…
Hexadecapole fluctuation mechanism for s-wave heavy fermion superconductor CeCu2Si2: Interplay between intra- and inter-orbital Cooper pairs
Rina Tazai, Hiroshi Kontani
In heavy-fermion superconductors, it is widely believed that the superconducting gap function has sign-reversal due to the strong electron correlation. However, recently discovered…