Magnetic breakdown and spin-zero effect in quantum oscillations in kagome metal CsV3Sb5
In the recently discovered kagome metal CsV3Sb5, an intriguing proposal invoking a doped
Chern insulator state suggests the presence of small Chern Fermi pockets hosting …
Chern insulator state suggests the presence of small Chern Fermi pockets hosting …
Gapless fermionic excitation in the antiferromagnetic state of ytterbium zigzag chain
The emergence of charge-neutral fermionic excitations in magnetic systems is one of the
unresolved issues in recent condensed matter physics. This type of excitations has been …
unresolved issues in recent condensed matter physics. This type of excitations has been …
Rashba-splitting-induced topological flat band detected by anomalous resistance oscillations beyond the quantum limit in ZrTe5
D Xing, B Tong, S Pan, Z Wang, J Luo, J Zhang… - Nature …, 2024 - nature.com
Topological flat bands—where the kinetic energy of electrons is quenched—provide a
platform for investigating the topological properties of correlated systems. Here, we report …
platform for investigating the topological properties of correlated systems. Here, we report …
Hall Anomaly, Quantum Oscillations and Possible Lifshitz Transitions in Kondo Insulator : Evidence for Unconventional Charge Transport
In correlated electronic systems, strong interactions and the interplay between different
degrees of freedom may give rise to anomalous charge-transport properties, which can be …
degrees of freedom may give rise to anomalous charge-transport properties, which can be …
Unconventional magnetic oscillations in kagome Mott insulators
We apply a strong magnetic field to a kagome Mott insulator with antiferromagnetic
interactions which does not show magnetic ordering down to low temperatures. We observe …
interactions which does not show magnetic ordering down to low temperatures. We observe …
Sudden adiabaticity signals reentrant bulk superconductivity in UTe2
There has been a recent surge of interest in UTe 2 due to its unconventional magnetic field
(H)-reinforced spin-triplet superconducting phases persisting at fields far above the simple …
(H)-reinforced spin-triplet superconducting phases persisting at fields far above the simple …
Temperature-driven change in band structure reflecting spin-charge separation of Mott and Kondo insulators
M Kohno - Physical Review B, 2023 - APS
The electronic band structure can change with temperature in Mott and Kondo insulators,
even without a phase transition. Here, to clarify the underlying mechanism, the spectral …
even without a phase transition. Here, to clarify the underlying mechanism, the spectral …
Topological surface conduction in Kondo insulator YbB12
Kondo insulators have recently aroused great interest because they are promising materials
that host a topological insulator state caused by the strong electron interactions. Moreover …
that host a topological insulator state caused by the strong electron interactions. Moreover …
Quasi-Two-Dimensional Anomalous Hall Mott Insulator of Topologically Engineered Electrons
We investigate an experimental toy-model system of a pseudospin-half square-lattice
Hubbard Hamiltonian in [(SrIrO 3) 1/(CaTiO 3) 1] to include both nontrivial complex hopping …
Hubbard Hamiltonian in [(SrIrO 3) 1/(CaTiO 3) 1] to include both nontrivial complex hopping …
Quantum oscillations in the magnetization and density of states of insulators
A Panda, S Banerjee… - Proceedings of the …, 2022 - National Acad Sciences
The observation of 1/B-periodic behavior in Kondo insulators and semiconductor quantum
wells challenges the conventional wisdom that quantum oscillations (QOs) necessarily arise …
wells challenges the conventional wisdom that quantum oscillations (QOs) necessarily arise …