Heavy particle dynamics in liquid Se: Inelastic X-ray scattering
Journal of the Physical Society of Japan Volume 76 Issue 5
Page 053601-1-053601-4
published_at 2007-05-15
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| File | |
| Title ( eng ) |
Heavy particle dynamics in liquid Se: Inelastic X-ray scattering
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| Creator |
Hosokawa Shinya
Matsuda Kazuhiro
Tsutsui Satoshi
Baron Alfred Q. R.
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| Source Title |
Journal of the Physical Society of Japan
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| Volume | 76 |
| Issue | 5 |
| Start Page | 053601-1 |
| End Page | 053601-4 |
| Abstract |
The dynamic structure factor of liquid Se was measured at 523 K using high-resolution inelastic X-ray scattering. Anomalous narrowing of the spectrum was observed at 15 nm-1, where the static structure factor S(Q) exhibits a weak shoulder, but the elastic part of the dynamic structure factor S(Q,E = 0) exhibited a strong maximum. The second frequency moment, which is estimated from only the quasi-elastic peak, is consistent with the motion of rigid six-atom clusters, while a formal agreement with the first-moment sum rule is preserved by the appearance of a weak intramolecular mode at 30 meV.
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| Keywords |
liquid Se
collective dynamics
inelastic X-ray scattering
de Gennes narrowing
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| NDC |
Physics [ 420 ]
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
日本物理学会
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| Date of Issued | 2007-05-15 |
| Rights |
Copyright (c) 2007 The Physical Society of Japan
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| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0031-9015
[DOI] 10.1143/JPSJ.76.053601
[NCID] AA00704814
[DOI] http://dx.doi.org/10.1143/JPSJ.76.053601
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