Abstract
Scandium (Sc) was studied by Raman spectroscopy to pressures up to 20GPa. The E2g mode frequency increases throughout the stability field of the hexagonal-close-packed (hcp) phase, which contrasts the softening of this mode observed in its heavier homologue Y and the related regular lanthanides. The unusually low mode Grüneisen parameter and the small increase of elastic modulus C44 are discussed with respect to pressure-induced changes of the electronic structure.
| Original language | English |
|---|---|
| Article number | 024 |
| Pages (from-to) | 10971-10976 |
| Number of pages | 6 |
| Journal | Journal of Physics Condensed Matter |
| Volume | 18 |
| Issue number | 48 |
| DOIs | |
| Publication status | Published - Dec 6 2006 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Unusual pressure response of the E2g mode and elastic shear modulus C44 in hcp scandium. / Olijnyk, H.; Nakano, S.; Jephcoat, A. P.; Takemura, K.
In: Journal of Physics Condensed Matter, Vol. 18, No. 48, 024, 06.12.2006, p. 10971-10976.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Unusual pressure response of the E2g mode and elastic shear modulus C44 in hcp scandium
AU - Olijnyk, H.
AU - Nakano, S.
AU - Jephcoat, A. P.
AU - Takemura, K.
PY - 2006/12/6
Y1 - 2006/12/6
N2 - Scandium (Sc) was studied by Raman spectroscopy to pressures up to 20GPa. The E2g mode frequency increases throughout the stability field of the hexagonal-close-packed (hcp) phase, which contrasts the softening of this mode observed in its heavier homologue Y and the related regular lanthanides. The unusually low mode Grüneisen parameter and the small increase of elastic modulus C44 are discussed with respect to pressure-induced changes of the electronic structure.
AB - Scandium (Sc) was studied by Raman spectroscopy to pressures up to 20GPa. The E2g mode frequency increases throughout the stability field of the hexagonal-close-packed (hcp) phase, which contrasts the softening of this mode observed in its heavier homologue Y and the related regular lanthanides. The unusually low mode Grüneisen parameter and the small increase of elastic modulus C44 are discussed with respect to pressure-induced changes of the electronic structure.
UR - http://www.scopus.com/inward/record.url?scp=33846111684&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33846111684&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/18/48/024
DO - 10.1088/0953-8984/18/48/024
M3 - Article
VL - 18
SP - 10971
EP - 10976
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
SN - 0953-8984
IS - 48
M1 - 024
ER -