Abstract
Elastic and inelastic neutron scattering has been used to study the continuous structural transition in chloranil at Tc=90.3 K. The transition results in a doubling of the monoclinic unit cell along the c axis and the molecular displacements correspond to a staggered rotation, ϕ, about axes perpendicular to the molecular planes. The temperature dependence of the order parameter, ϕ, has been determined from superlattice Bragg intensities with the result ϕ∝ (Tc−T)0.33±0.02 for 0.005<(1−T/Tc)
Original language | English |
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Journal | Journal of Chemical Physics |
Volume | 67 |
Issue number | 8 |
Pages (from-to) | 3619-3623 |
ISSN | 0021-9606 |
DOIs | |
Publication status | Published - 1977 |