No abstract

The surface free energies, interfacial tensions and correlation lengths of the Andrews-Baxter-Forrester models in regimes III and IV are calculated with fixed boundary conditions. The interfacial tensions are calculated between arbitrary phases and are shown to be additive. The associated critical exponents are given by 2 − α s = µ = ν with ν = (L + 1)/4 in regime III and 4 − 2α s = µ = ν with ν = (L + 1)/2 in regime IV. Our results are obtained using general commuting transfer matrix and inversion relation methods that may be applied to other solvable lattice models. §

We optimized BiFeO thin film for use in multilevel optical recording. Due to minimal intersymbol interference (ISI), we obtained a 2.57% sigma-to-dynamic range (SDR) at a recording capacity of 25 GB. We confirmed that our write-once disc achieved a recording capacity of 25 GB using a laser diode with a 405-nm wavelength and a 0.65-numerical aperture objective lens.