Superspace approach applied to a neutron-diffraction study of the holographic data storage material Sr0.61Ba0.39Nb2O6

被引：0

作者：

D. Schaniel

J. Schefer

V. Petricek

M. Imlau

R. Pankrath

T. Granzow

T. Woike

机构：

[1] Laboratory for Neutron Scattering,

[2] ETH Zürich & PSI Villigen,undefined

[3] 5232 Villigen,undefined

[4] Switzerland,undefined

[5] Institute of Physics,undefined

[6] Academy of Sciences,undefined

[7] 18221 Praha 8,undefined

[8] Czech Republic,undefined

[9] Fachbereich Physik,undefined

[10] University of Osnabrück,undefined

[11] 49069 Osnabrück,undefined

[12] Germany,undefined

[13] Institute for Mineralogy and Geochemistry,undefined

[14] University at Cologne,undefined

[15] 50674 Köln,undefined

[16] Germany,undefined

来源：

Applied Physics A | 2002年 / 74卷

关键词：

PACS: 61.12.Ld; 61.44.Fw;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We investigated the incommensurately modulated structure of Sr0.61Ba0.39Nb2O6 by means of single-crystal neutron diffraction. With the measured 620 satellite reflections we could verify the two modulation vectors Q1,2=(0.3075,±0.3075,0.5)known from X-ray-diffraction experiments. As neutrons are much more sensitive to oxygen atoms than X-rays, we performed structural refinement of the oxygen atoms using the superspace approach. The largest amplitude for positional modulation was found for those oxygen atoms lying in the same plane (z=const.) as the Sr and Ba atoms. The final R values for main and satellite reflections are 0.063 and 0.153, respectively.

引用

页码：s963 / s965

共 50 条

[1] Superspace approach applied to a neutron-diffraction study of the holographic data storage material Sr0.61Ba0.39Nb2O6
Schaniel, D
Schefer, J
Petricek, V
Imlau, M
Pankrath, R
Granzow, T
Woike, T
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2002, 74 (Suppl 1): : S963 - S965
[2] RAMAN-SPECTRUM OF SR0.61BA0.39NB2O6
WILDE, RE
JOURNAL OF RAMAN SPECTROSCOPY, 1991, 22 (06) : 321 - 325
[3] RAYLEIGH-SCATTERING IN SR0.61BA0.39NB2O6
WILDE, JP
WILDE, RE
JOURNAL OF APPLIED PHYSICS, 1992, 71 (01) : 418 - 421
[4] XPS study of photorefractive Sr0.61Ba0.39Nb2O6:Ce crystals
Niemann, R
Buse, K
Pankrath, R
Neumann, M
SOLID STATE COMMUNICATIONS, 1996, 98 (03) : 209 - 213
[5] Sr0.61Ba0.39Nb2O6薄膜的电光特性
马颖
徐丽琴
阳生红
张曰理
发光学报, 2007, (04) : 537 - 540
[6] Refractive indices of congruently melting Sr0.61Ba0.39Nb2O6
Woike, T
Granzow, T
Dörfler, U
Poetsch, C
Wöhlecke, M
Pankrath, R
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 2001, 186 (01): : R13 - R15
[7] TILTING OF HOLOGRAMS IN PHOTOREFRACTIVE SR0.61BA0.39NB2O6 CRYSTALS BY SELF-DIFFRACTION
BUSE, K
KAMPER, S
FREJLICH, J
PANKRATH, R
RINGHOFER, KH
OPTICS LETTERS, 1995, 20 (21) : 2249 - 2251
[8] Refractive indices of Sr0.61Ba0.39Nb2O6 single crystals
Kip, D
Aulkemeyer, S
Buse, K
Mersch, F
Pankrath, R
Kratzig, E
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1996, 154 (02): : K5 - K7
[9] On the temperature dependence of the band edge of Sr0.61Ba0.39Nb2O6
Meyer, M
Wöhlecke, M
Schirmer, OF
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 2000, 221 (01): : R1 - R3
[10] Evolution of nanodomains in the uniaxial relaxor Sr0.61Ba0.39Nb2O6:Ce
Shvartsman, Vladimir V.
Kleemann, Wolfgang
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2006, 53 (12) : 2275 - 2279

← 1 2 3 4 5 →