In-situ observation of perovskite formation on the surface of Sr3La2Ti2O10

被引：1

作者：

Bowden, ME ^{[1
]}

Jefferson, DA ^{[1
]}

Brown, IWM ^{[1
]}

机构：

[1] UNIV CAMBRIDGE, DEPT CHEM, CAMBRIDGE CB2 1EW, ENGLAND

来源：

SURFACE SCIENCE | 1996年 / 366卷 / 02期

关键词：

crystalline-amorphous interfaces; electron bombardment; high-resolution electron microscopy (HREM); surface relaxation and reconstruction;

D O I：

10.1016/0039-6028(96)00821-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High resolution electron microscopy has been used to monitor the changes at the surface of Sr3La2Ti2O10 caused by electron beam irradiation. Initially, the surface is covered by a layer of amorphous metal oxide a few tens of angstrom units thick. Crystallisation occurs within this layer and continues with further exposure to the electron beam. Computer modelling and image simulations have shown that the new surface structure is that of perovskite, which possesses corner-linked TiO6 octahedra in common with the bulk compound.

引用

页码：317 / 322

页数：6

共 6 条

[1] A NEW LAYERED STRUCTURE-BASED ON PEROVSKITE IN THE SRO-LA2O3-TIO2 SYSTEM
BOWDEN, ME
JEFFERSON, DA
BROWN, IWM
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 1995, 119 (02) : 412 - 419
[2] ELECTRON-IRRADIATION DAMAGE IN OXIDES
BUCKETT, MI
STRANE, J
LUZZI, DE
ZHANG, JP
WESSELS, BW
MARKS, LD
[J]. ULTRAMICROSCOPY, 1989, 29 (1-4) : 217 - 227
[3] NEW COMPOUNDS OF THE K2NIF4 TYPE
RUDDLESDEN, SN
POPPER, P
[J]. ACTA CRYSTALLOGRAPHICA, 1957, 10 (08): : 538 - 540
[4] ATOMIC IMAGING OF OXIDE SURFACES .1. GENERAL FEATURES AND SURFACE REARRANGEMENTS
SMITH, DJ
BURSILL, LA
JEFFERSON, DA
[J]. SURFACE SCIENCE, 1986, 175 (03) : 673 - 683
[5] THE ELECTRON-BEAM-INDUCED REDUCTION OF TRANSITION-METAL OXIDE SURFACES TO METALLIC LOWER OXIDES
SMITH, DJ
MCCARTNEY, MR
BURSILL, LA
[J]. ULTRAMICROSCOPY, 1987, 23 (3-4) : 299 - 303
[6] HREM STUDIES OF SURFACE-CHEMISTRY OF SUPERCONDUCTING YBA2CU3O7-DELTA
ZHOU, W
JEFFERSON, DA
LIANG, WY
[J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 1993, 6 (02) : 81 - 90

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