Details
| Original language | English |
|---|---|
| Pages (from-to) | 299-305 |
| Number of pages | 7 |
| Journal | Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals |
| Volume | 244 |
| Issue number | 1 |
| Publication status | Published - Apr 1994 |
Abstract
The inplane phonon densities of states of Li-graphite intercalation compounds of stage-1 and stage-2 are obtained from neutron time-of-flight spectra. For the stage-2 the ordered compound LiC12 which has the same inplane structure as the stage-1 compound LiCß as well as the dilute compound LiC16 which only reveals short range order were studied. The temperature in the measurements was extended above expected phase transitions for both stages and the density of states is analysed in terms of the effective temperatures T for the inplane vibrational energies. T\\ shows characteristic changes at the thermodynamic temperatures of the phase tansitions. Comparison of the T|| values shows similar inplane dynamics of all Li-compounds at the highest temperatures.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol. 244, No. 1, 04.1994, p. 299-305.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - In-Plane Phonon Density of States of Li-Graphite Intercalation Compounds
AU - Schirmer, A.
AU - Fischer, J. E.
AU - Heitjans, P.
AU - Kim, H. J.
AU - Magerl, A.
AU - Varnin, D.
AU - Zabel, H.
N1 - Funding Information: The work at the Univ. l.Jnnovcr an' the Univ. of Pennsylvania has been supported by the Bundesministerium fiir Forschung urid Technologie (HEJHAN) and the Department of Energy (DE-FC02-86ER45254), respectively.
PY - 1994/4
Y1 - 1994/4
N2 - The inplane phonon densities of states of Li-graphite intercalation compounds of stage-1 and stage-2 are obtained from neutron time-of-flight spectra. For the stage-2 the ordered compound LiC12 which has the same inplane structure as the stage-1 compound LiCß as well as the dilute compound LiC16 which only reveals short range order were studied. The temperature in the measurements was extended above expected phase transitions for both stages and the density of states is analysed in terms of the effective temperatures T for the inplane vibrational energies. T\\ shows characteristic changes at the thermodynamic temperatures of the phase tansitions. Comparison of the T|| values shows similar inplane dynamics of all Li-compounds at the highest temperatures.
AB - The inplane phonon densities of states of Li-graphite intercalation compounds of stage-1 and stage-2 are obtained from neutron time-of-flight spectra. For the stage-2 the ordered compound LiC12 which has the same inplane structure as the stage-1 compound LiCß as well as the dilute compound LiC16 which only reveals short range order were studied. The temperature in the measurements was extended above expected phase transitions for both stages and the density of states is analysed in terms of the effective temperatures T for the inplane vibrational energies. T\\ shows characteristic changes at the thermodynamic temperatures of the phase tansitions. Comparison of the T|| values shows similar inplane dynamics of all Li-compounds at the highest temperatures.
UR - http://www.scopus.com/inward/record.url?scp=0027928619&partnerID=8YFLogxK
U2 - 10.1080/10587259408050121
DO - 10.1080/10587259408050121
M3 - Article
AN - SCOPUS:0027928619
VL - 244
SP - 299
EP - 305
JO - Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
SN - 1058-725X
IS - 1
ER -