Phonons in iron monolayers

Phonons in solid argon monolayers.

Department ofPhysics and Astronomy, University ofDelaware, Newark, Delaware 19716 (Received 21 June 1989) Inelastic neutron scattering studies of excitations in ' Ar solid monolayers show a large thermal broadening of the scattered intensity between T =4 and 45 K. %'e find this thermal broadening can be readily explained in terms of anharmonic interactions between the phonons in the monolayers....

Phonons and librons in nitrogen monolayers adsorbed on graphite

Phonons and librons in nitrogen monolayers adsorbed on graphite.

Phonons in iron: from the bulk to an epitaxial monolayer.

The confinement of materials in low-dimensional structures has significant impact on propagating excitations like phonons. Using the isotope-specific 57Fe nuclear resonant vibrational spectroscopy we were able to determine elastic and thermodynamic properties of ultrathin Fe films on W(110). With decreasing thickness one observes a significant increase of the mean atomic displacement that goes ...

Nonharmonic phonons in α-iron at high temperatures

L. Mauger,1 M. S. Lucas,2 J. A. Muñoz,1 S. J. Tracy,1 M. Kresch,3 Yuming Xiao,4 Paul Chow,4 and B. Fultz1 1California Institute of Technology, W. M. Keck Laboratory 138-78, Pasadena, California 91125, USA 2Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433, USA 3Marft, Inc., 101 Irene Court, Belmont, California 94002, USA 4HPCAT, Geophysical Laboratory, Carnegie Institute of Washin...