Crystal structure of Ba27Fe16Ti33O117
(2002) In Solid State Sciences 4(7). p.911-916- Abstract
- Single-crystal X-ray diffraction studies indicate that the compound Ba27Fe16Ti33O117 crystallizes in the rhombohedral space group R3m, with a hexagonal unit cell a = 5.7400(8), c = 127.11(3) Angstrom: Z = 1.5. The arrangement may be described as a 54-layer (54L) close-packed structure (stacking sequence (cchcchhhhcchhhhcch)(3)) built from oxygen and {Ba, O} layers, with Ti4+ occupying octahedra and Fe3+ occupying both octahedral and tetrahedral interstices. The 54L structure contains hexagonal 6L BaTiO3-type (cch)(2) units via a 9-fold repeat of the 6L stacking sequence, with iron preferentially occupying layers centered a-round z = 1/6, Ba27Fe16Ti33O117 melts incongruently at 1270 degreesC and is difficult to purify in polycrystalline... (More)
- Single-crystal X-ray diffraction studies indicate that the compound Ba27Fe16Ti33O117 crystallizes in the rhombohedral space group R3m, with a hexagonal unit cell a = 5.7400(8), c = 127.11(3) Angstrom: Z = 1.5. The arrangement may be described as a 54-layer (54L) close-packed structure (stacking sequence (cchcchhhhcchhhhcch)(3)) built from oxygen and {Ba, O} layers, with Ti4+ occupying octahedra and Fe3+ occupying both octahedral and tetrahedral interstices. The 54L structure contains hexagonal 6L BaTiO3-type (cch)(2) units via a 9-fold repeat of the 6L stacking sequence, with iron preferentially occupying layers centered a-round z = 1/6, Ba27Fe16Ti33O117 melts incongruently at 1270 degreesC and is difficult to purify in polycrystalline form, although crystals are easily obtained from partial melts. The new compound is a member of a family of ternary Ba-Fe-Ti-O phases that may be considered as dielectric-magnetic hybrids of barium-polytitanate and barium-hexaferrite crystal chemistries. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved. (Less)
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https://lup.lub.lu.se/record/328486
- author
- Siegrist, Theo LU ; Vanderah, TA ; Svensson, Ch and Roth, RS
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Solid State Sciences
- volume
- 4
- issue
- 7
- pages
- 911 - 916
- publisher
- Elsevier
- external identifiers
-
- wos:000177955700005
- scopus:0036324319
- ISSN
- 1873-3085
- DOI
- 10.1016/S1293-2558(02)01334-1
- language
- English
- LU publication?
- yes
- id
- 8fcbb51f-c61c-418b-a4fd-6cdf29cad9d6 (old id 328486)
- date added to LUP
- 2016-04-01 11:33:36
- date last changed
- 2022-01-26 07:03:39
@article{8fcbb51f-c61c-418b-a4fd-6cdf29cad9d6,
abstract = {{Single-crystal X-ray diffraction studies indicate that the compound Ba27Fe16Ti33O117 crystallizes in the rhombohedral space group R3m, with a hexagonal unit cell a = 5.7400(8), c = 127.11(3) Angstrom: Z = 1.5. The arrangement may be described as a 54-layer (54L) close-packed structure (stacking sequence (cchcchhhhcchhhhcch)(3)) built from oxygen and {Ba, O} layers, with Ti4+ occupying octahedra and Fe3+ occupying both octahedral and tetrahedral interstices. The 54L structure contains hexagonal 6L BaTiO3-type (cch)(2) units via a 9-fold repeat of the 6L stacking sequence, with iron preferentially occupying layers centered a-round z = 1/6, Ba27Fe16Ti33O117 melts incongruently at 1270 degreesC and is difficult to purify in polycrystalline form, although crystals are easily obtained from partial melts. The new compound is a member of a family of ternary Ba-Fe-Ti-O phases that may be considered as dielectric-magnetic hybrids of barium-polytitanate and barium-hexaferrite crystal chemistries. (C) 2002 Editions scientifiques et medicales Elsevier SAS. All rights reserved.}},
author = {{Siegrist, Theo and Vanderah, TA and Svensson, Ch and Roth, RS}},
issn = {{1873-3085}},
language = {{eng}},
number = {{7}},
pages = {{911--916}},
publisher = {{Elsevier}},
series = {{Solid State Sciences}},
title = {{Crystal structure of Ba27Fe16Ti33O117}},
url = {{http://dx.doi.org/10.1016/S1293-2558(02)01334-1}},
doi = {{10.1016/S1293-2558(02)01334-1}},
volume = {{4}},
year = {{2002}},
}