Direct observation of shear-induced orientational phase coexistence in a lyotropic system using a modified x-ray surface forces apparatus

Yuval Golan, Ana Martin-Herranz, Youli Li, Cyrus R. Safinya, Jacob Israelachvili

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

The behavior of lamellar fluid samples in relatively large gaps was studied to maximize the scattering signal with the in-house rotating anode x ray set up. The XSFA-II was used to study a four-component lyotropic model lubricant system. By applying small shear amplitudes to a relatively thick film, evidence was observed for the formation of an atom orientational boundary layer at the shearing surface. Time-resolved x-ray diffraction revealed the gradual transition.

Original languageEnglish
Pages (from-to)1263-1266
Number of pages4
JournalPhysical Review Letters
Volume86
Issue number7
DOIs
StatePublished - 12 Feb 2001

ASJC Scopus subject areas

  • General Physics and Astronomy

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