2 papers
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-mech1999
Stiffening Transition in Vicinal Surfaces with Adsorption
Noriko Akutsu, Yasuhiro Akutsu, Takao Yamamoto
We study the vicinal surface with adsorption below the roughening temperature, using the restricted solid-on-solid model coupled with the Ising model. We calculate the step tension…