1986•Physical Review LettersRequires access
Direct observation of critical phenomena by incoherent neutron scattering
Bertrand Toudic, H. Cailleau, R.E. Lechner, W. Petry
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Abstract
The first direct spectral observation of critical incoherent quasielastic neutron scattering is reported. This result has been obtained by a combination of time-of-flight and high-resolution backscattering spectrometers with use of a single crystal of selectively deuterated p-terphenyl in the vicinity of the order-disorder phase transition. The relation of the incoherent-scattering results to critical coherent neutron scattering is discussed.