PRESSURE-INDUCED STRUCTURAL SEQUENCE IN THAL2

Authors
SHEKAR NVC SAHU PC YOUSUF M RAJAN KG
Citation
Nvc. Shekar et al., PRESSURE-INDUCED STRUCTURAL SEQUENCE IN THAL2, Physical review. B, Condensed matter, 55(2), 1997, pp. 745-749
Citations number
32
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
55
Issue
2
Year of publication
1997
Pages
745 - 749
Database
ISI
SICI code
0163-1829(1997)55:2<745:PSSIT>2.0.ZU;2-P
Abstract
On the application of pressure at 300 K, ThAl2 (AlB2-type hexagonal at STP) exhibits an isostructural transition at around 5.5 GPa. Later it undergoes a phase transition from hexagonal to orthorhombic structure at 12 GPa and then to tetragonal at about 25 GPa. This pressure-induc ed structural sequence is observed rarely for an AlB2-type f-electron system. Comparison is made to existing structural data.