One-Dimensional Phonons and "Phase-Ordering" Phase Transition in <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">Hg</mi></mrow><mrow><mn>3</mn><mo>−</mo><mi>δ</mi></mrow></msub></mrow><mi mathvariant="normal">As</mi><mrow><msub><mrow><mi mathvariant="normal">F</mi></mrow><mrow><mn>6</mn></mrow></msub></mrow></math></span>

J. M. Hastings; J. P. Pouget; G. Shirane; A. J. Heeger; N. D. Miro; A. G. MacDiarmid

doi:10.1103/PhysRevLett.39.1484

One-Dimensional Phonons and "Phase-Ordering" Phase Transition in ${Hg}_{3 - δ} As F_{6}$

J. M. Hastings, J. P. Pouget, G. Shirane, A. J. Heeger, N. D. Miro, and A. G. MacDiarmid

Phys. Rev. Lett. 39, 1484 – Published 5 December 1977

Abstract

This paper reports elastic and inelastic neutron-scattering studies on the incommensurate linear-chain mercury compound ${Hg}_{3 - δ} As F_{6}$ . The one-dimensional phonon dispersion curve associated with the randomly phased linear Hg chains has been measured at room temperature. A transition, at 120 K, from a randomly phased interchain structure to a "phase-ordered" structure has been found and characterized.

Received 20 July 1977

DOI:https://doi.org/10.1103/PhysRevLett.39.1484

Authors & Affiliations

J. M. Hastings, J. P. Pouget^*, and G. Shirane

Brookhaven National Laboratory, Upton, New York 11973

A. J. Heeger, N. D. Miro, and A. G. MacDiarmid

Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania 19104

^*Permanent address: Laboratoire de Physique des Solides, Associé au Centre National de la Recherche Scientifique, Université Paris Sud, 91405 Orsay, France.