NOVEL INCOMMENSURATE PHASE IN CS3BI2I9

Authors
ALEKSANDROVA IP SUKHOVSKY AA ALEKSANDROV KS
Citation
Ip. Aleksandrova et al., NOVEL INCOMMENSURATE PHASE IN CS3BI2I9, Solid state communications, 105(5), 1998, pp. 323-326
Citations number
11
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
105
Issue
5
Year of publication
1998
Pages
323 - 326
Database
ISI
SICI code
0038-1098(1998)105:5<323:NIPIC>2.0.ZU;2-Y
Abstract
The incommensurate modulation has been found in the hexagonal Cs3Bi2I9 , belonging to the A(3)B(2)X(9) family of the layered compounds. The s econd order normal-incommensurate transition at T-i = 224 K is accompa nied by the symmetry change P6(3)/mmc <-> P2(1)/m. The transition into a ferroelastic incommensurate phase occurs at the zone center, accord ing to the NQR and ultrasonic measurements. (C) 1998 Elsevier Science Ltd.