The S=1/2 kagome- and triangular-lattice Heisenberg antiferromagnets are investigated using the numerical exact diagonalization and the finite-size scaling analysis. The behaviour of the field derivative at zero magnetization is examined for both ...
Journal of Physics: Conference Series 969(1) 012126 2018年4月 [査読有り]
The spin-1/2 triangular-lattice Heisenberg antiferromagnet with a-Type distortion is studied by the numerical-diagonalization method. We examine this model between the two cases, one is the undistorted triangular lattice and the other is the model...
Journal of Physics: Conference Series 969(1) 012127 2018年4月 [査読有り]
The S=1/2 kagome-lattice antiferromagnet is investigated using the numerical diagonalization of finite-size clusters. The analysis of the susceptibility at the zero magnetization indicates that the magnetic excitation of the system is gapless. It ...