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Orientational ordering of commensurate Fe(CO)5 monolayers on graphite

R. Wang, H. Taub, H. Shechter, R. Brener, J. Suzanne, and F. Y. Hansen
Phys. Rev. B 27, 5864(R) – Published 1 May 1983
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Abstract

Elastic neutron diffraction and Mössbauer spectroscopy have been used to study the structure, orientational-disordering (OD) transition, and melting of an Fe(CO)5 submonolayer adsorbed on Grafoil. The OD transition occurs between 150 and 167 K from a two-sublattice (7×21) structure to a nearly (7×7) phase in which the molecules are believed to rotate about the surface normal. Mössbauer spectra exhibit a more abrupt variation with temperature near melting at 170 K than through the OD transition.

  • Received 7 February 1983

DOI:https://doi.org/10.1103/PhysRevB.27.5864

©1983 American Physical Society

Authors & Affiliations

R. Wang and H. Taub

  • Department of Physics, University of Missouri—Columbia, Columbia, Missouri 65211

H. Shechter and R. Brener

  • Solid State Institute, Technion, Israel Institute of Technology, Haifa 32000, Israel

J. Suzanne

  • Départment de Physique, Case 901, Université d'Aix-Marseille II, 13288 Marseille Cedex 9, France

F. Y. Hansen

  • Fysisk-Kemisk Institut, The Technical University of Denmark, DK2800 Lyngby, Denmark

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Issue

Vol. 27, Iss. 9 — 1 May 1983

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