Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Nakano, Hiroki*; Hasegawa, Yasumasa*; Sakai, Toru
Journal of the Physical Society of Japan, 84(11), p.114703_1 - 114703_6, 2015/11
Times Cited Count：34 Percentile：83.42(Physics, Multidisciplinary)The magnetization process of the spin-1/2 Heisenberg antiferromagnet on the distorted square-kagome lattice is investigated by the large-scale numerical diagonalization method. It is found that a novel magnetization jump appears at 1/3 of the saturation magnetization.
Nakano, Hiroki*; Sakai, Toru; Hasegawa, Yasumasa*
Journal of the Physical Society of Japan, 83(8), p.084709_1 - 084709_7, 2014/08
Motivated by a recent finding of a spin-flop phenomenon in a system without anisotropy in spin space reported in the 
= 1/2 Heisenberg antiferromagnet on the square-kagome lattice, we study the = 1/2 Heisenberg antiferromagnets on two other lattice composed of vertex-sharing triangles using the numerical diagonalization method. One is a novel lattice including a 
shape with four teeth; the other is a distorted kagome lattice, which includes a shape with six teeth. We find in the magnetization processes of these systems that a magnetization jump accompanied by a spin-flop phenomenon occurs at the higher-field-side edge of the magnetization plateau at one-third the height of saturation.
Nakano, Hiroki*; Sakai, Toru; Hasegawa, Yasumasa*
Journal of the Physical Society of Japan, 83(8), p.084709_1 - 084709_7, 2014/08
Times Cited Count：24 Percentile：76.81(Physics, Multidisciplinary)Some two-dimensional frustrated antiferromagnets are investigated by the numerical diagonalization. As a result, it was found that several frustrated antiferromagnets exhibit a spin flop phenomenon even without anisotropy in the spin space.
