5 papers
Incommensurate quantum magnet based on 4f-electron in a zigzag spin-1/2 chain of YbCuS
T. Onimaru, Y. Ohmagari, S. Mizutani +8
We performed high-resolution powder neutron diffraction experiments and discovered an elliptic helical incommensurate magnetic structure in the semiconducting rare-earth magnet YbC…
Cluster-projected matrix product state: framework for engineering exact quantum many-body ground states in one and two dimensions
Hidehiro Saito, Chisa Hotta
We propose a framework to design concurrently a frustration-free quantum many-body Hamiltonian and its numerically exact ground states on a sufficiently large finite-size cluster i…
Phase diagram of the quantum spin-1/2 Heisenberg- model on a frustrated zigzag chain
Hidehiro Saito, Chisa Hotta
We investigate the quantum spin-1/2 zigzag chain with frustrated - Heisenberg interactions, incorporating additional off-diagonal exchange interactions known as the t…
Exact matrix product states at the quantum Lifshitz tricritical point in a spin-1/2 zigzag-chain antiferromagnet with anisotropic -term
Hidehiro Saito, Chisa Hotta
Quantum anisotropic exchange interactions in magnets can induce competitions between phases in a different manner from those typically driven by geometrically frustrated interactio…
Deriving quantum spin model for a zigzag-chain ytterbium magnet with anisotropic exchange interactions
Hidehiro Saito, Hiroki Nakai, Chisa Hotta
We derive a quantum spin Hamiltonian of the spin-1/2 zigzag chain realized in a rare earth ytterbium-based magnetic insulator, YbCuS2. This material undergoes a transition at 0.95K…