title: New hexatic liquid phase observed in lyotropic thin films.
abstract: An intermediate surface hexatic phase between the liquid and the crystalline phases has been found for the first time in a lyotropic lamellar liquid-crystal system. This phase is highly unusual in that it has long-range sixfold bond-orientational order but liquidlike nearest-neighbor positional correlations, and could represent a significant departure from our current understanding of defect-mediated melting in two dimensions.
authors.affiliation: Department of Physics, National Taiwan University, Taipei 10617, Taiwan, Republic of China. cychao@ntu.edu.tw
authors.forename: Chih-Yu
authors.initials: CY
authors.lastname: Chao
authors.forename: Ming-Tsong
authors.initials: MT
authors.lastname: Hsu
authors.forename: Wen-Jiunn
authors.initials: WJ
authors.lastname: Hsieh
authors.forename: John T
authors.initials: JT
authors.lastname: Ho
authors.forename: Ivan J B
authors.initials: IJ
authors.lastname: Lin