Publications (28)
Unusual superexchange pathways in a Ni triangular lattice of NiGaS with negative charge-transfer energy
K. Takubo, T. Mizokawa, J. -Y. Son +5
We have studied the electronic structure of the Ni triangular lattice in NiGaS using photoemission spectroscopy and subsequent model calculations. The cluster-model analysi…
Evidence for an exotic magnetic transition in the triangular spin system FeGa2S4
P. Dalmas de Reotier, A. Yaouanc, D. E. MacLaughlin +8
We report positive muon spin relaxation measurements on the triangular lattice magnetic system FeGa2S4. A magnetic transition not previously detected by specific heat and magnetic…
Magnetic structure and high-field magnetization of the distorted kagome lattice antiferromagnet CsCuSnF
K. Matan, T. Ono, G. Gitgeatpong +12
High-resolution time-of-flight powder neutron diffraction and high-field magnetization were measured to investigate the magnetic structure and existence of a field-induced magnetic…
Breakdown of Linear Spin-wave Theory and Existence of Spinon Bound States in the Frustrated Kagome Lattice Antiferromagnet
K. Matan, T. Ono, S. Ohira-Kawamura +3
Spin dynamics of the spin-1/2 kagome lattice antiferromagnet CsCuSnF was studied using high-resolution, time-of-flight inelastic neutron scattering. The flat mode, a…
High Field ESR in the Two-Dimensional Triangular Lattice Antiferromagnet NiGa2S4
H. Yamaguchi, S. Kimura, M. Hagiwara +4
In this Letter, we report the results of ESR measurements in high magnetic fields up to about 53 T on single crystals of NiGa2S4 to clarify the spin dynamics in more detail. We hav…
Quantum Key Distribution using Two Coherent States of Light and their Superposition
Y. Nambu, A. Tomita, Y. Chiba-Kohno +1
Quantum mechanical complementarity ensures the security of the key-distribution scheme reported by Brassard and Bennet in 1984 (BB84), but does not prohibit use of multi-photons as…