JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 84(11) 2015年11月 [査読有り]
We study the magnetization process of the spin-1/2 Heisenberg antiferromagnet on a distorted square-kagome lattice by the numerical-diagonalization method. The magnetization jump at one-third of the height of the saturation is examined in detail; ...
The S = 1/2 three-leg spin nanotube with the ring exchange interaction at each plaquette is investigated using the numerical diagonalization of finite-size systems. The previous work suggested that the system without the ring exchange interaction ...
APPLIED MAGNETIC RESONANCE 46(9) 997-1002 2015年9月 [査読有り]
The S = 1/2 kagome-lattice antiferromagnet is investigated by the numerical diagonalization of 18-spin finite-size cluster. The matrix elements proportional to the intensity of the singlet--triplet electron spin resonance (ESR) transition are calc...
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 84(6) 2015年6月 [査読有り]
The magnetization process of the spin-S Heisenberg antiferromagnet on the kagome lattice is studied by the numerical-diagonalization method. Our numerical-diagonalization data for small finite-size clusters with S = 1, 3/2, 2, and 5/2 suggest that...