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4 papers · 2 filters
Crossover from commensurate to incommensurate antiferromagnetism in stoichiometric NaFeAs revealed by single-crystal 23Na,75As-NMR experiments
Kentaro Kitagawa, Yuji Mezaki, Kazuyuki Matsubayashi +2
We report results of 23Na and 75As nuclear magnetic resonance (NMR) experiments on a self-flux grown high-quality single crystal of stoichiometric NaFeAs. The NMR spectra revealed…
Haldane Phases and Ferrimagnetic Phases with Spontaneous Translational Symmetry Breakdown in Distorted Mixed Diamond Chains with Spins 1 and 1/2
Kazuo Hida, Ken'ichi Takano, Hidenori Suzuki
The ground states of two types of distorted mixed diamond chains with spins 1 and 1/2 are investigated using exact diagonalization, DMRG, and mapping onto low-energy effective mode…
Correlation induced spin freezing transition in FeSe: a dynamical mean field study
A. Liebsch, H. Ishida
The effect of local Coulomb interactions on the electronic properties of FeSe is explored within dynamical mean field theory combined with finite-temperature exact diagonalization.…
Scaling Property of the F-AF Spin Chain Near the Exactly Solvable Point
H. Suzuki, K. Takano
We investigate the ground state of the - spin-1/2 chain with and in the case that the nearest-neighbor interaction in the -direction has a weak a…