Millisecond time resolution neutron reflection from a nematic liquid crystal

Journal Article · Wed Sep 01 00:00:00 EDT 2004 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1783596· OSTI ID:20643970

Dalgliesh, R M; Lau, Y G.J.; Richardson, R M; Riley, D J ^[1]

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1. ISIS Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX (United Kingdom)

The director reorientation of the liquid crystal 4,4' octyl cyanobiphenyl in the nematic phase under application of bursts of ac field have been observed using time-resolved neutron scattering in reflection geometry. The relaxation of the director has been shown to agree with existing theory, as determined by material and cell parameters. This result shows that it is possible to use neutron reflection measurements from buried interfaces to follow kinetic processes on a time scale comparable with the pulse length of the ISIS neutron source (20 ms)

• OSTI ID: 20643970
• Journal Information: Review of Scientific Instruments, Vol. 75, Issue 9; Other Information: DOI: 10.1063/1.1783596; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
LIQUID CRYSTALS
NEUTRON DIFFRACTION
NEUTRON SOURCES
ORGANIC COMPOUNDS
REFLECTION
RELAXATION
TIME RESOLUTION