NIOBIUM IMPLANTATION EFFECTS IN BATIO3 AND SRTIO3

被引：9

作者：

MORETTI, P

CANUT, B

RAMOS, SMM

THEVENARD, P

GODEFROY, G

机构：

[1] UNIV LYON 1,DEPT PHYS MAT,CNRS,URA 172,F-69622 VILLEURBANNE,FRANCE

[2] UNIV BOURGOGNE,PHYS SOLIDE LAB,F-21004 DIJON,FRANCE

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1992年 / 65卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(92)95046-T

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Single crystals of BaTiO3 and SrTiO3 have been implanted at room temperature with 150 keV Nb+ ions to doses ranging from 10(14) to 10(17) ions cm-2. The structure and the oxidation state of the damaged layer have been investigated by Rutherford backscattering-ion channeling and electron spectroscopy, respectively. SrTiO3 is rendered amorphous at relatively low doses of 2 x 10(15) ions cm-2, but the damage is efficiently annealed at 450-degrees-C for 1/2 h. For both materials, the oxidation state of niobium varies from +5 to +2 along the depth. Moreover, a considerable chemical shift (2.3 eV) is observed for barium in BaTiO3.

引用

页码：264 / 269

页数：6

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