activity
19972007
most citedMagnetic phase diagram of the S=1/2 antiferromagnetic zigzag spin chain in the strongly frustrated region: cusp and plateau

95 citations · 207 across the 5 of their papers we have counts for

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Showing 2001Show all

2 papers · 1 filter

cond-mat.stat-mech2001

Universal relation between the dispersion curve and the ground-state correlation length in 1D antiferromagnetic quantum spin systems

K. Okunishi, Y. Akutsu, N. Akutsu +1

We discuss an universal relation with in 1D quantum spin systems with an excitation gap, where is the dispersion curve of the low-energy excitatio…

cond-mat.stat-mech2001

Spinon excitation and Möbius boundary condition in S=1/2 antiferromagnetic Heisenberg spin ladder with zigzag structure

Kouichi Okunishi, Nobuya Maeshima

We investigate the low-lying excitation of the antiferromagnetic zigzag spin ladder with Möbius boundary condition. Using the Lanczos and Householder diagonalization methods, we ca…