Crystal structure and X-ray photoelectron spectroscopy study of the transition-metal oxides LaFe1-x CrxO3

CHEN Zhigang    1; 2    IBRAHIM Kurash  2  DONG Yuhui  2  WU Ziyu  2  WEI Long  3    WANG Yutian  3  WANG Yunbo  1  Yu Jun  1  1

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Crystal structure and X-ray photoelectron spectroscopy study of the transition-metal oxides LaFe_1-x Cr_xO₃

更新时间：2021-03-12

- Crystal structure and X-ray photoelectron spectroscopy study of the transition-metal oxides LaFe_1-x Cr_xO₃
- NUCLEAR TECHNIQUES Issue 10, (2002)
- 作者机构：
  
  1. 华中科技大学电子科学与技术系
  2. 中国科学院高能物理研究所同步辐射室
  3. 中国科学院高能物理研究所核分析室
  4. 华中科技大学电子科学与技术系武汉430074中国科学院高能物理研究所同步辐射室北京,100039
  5. ,武汉,430074
- 作者简介：
- 基金信息：
  
  国家自然科学基金(10074063)资助
- DOI：
  CLC： O76
- Published：01 October 2002
- 稿件说明：
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[1]陈志刚,奎热西,董宇辉,吴自玉,魏龙,王雨田,王耘波,于军.过渡金属氧化物LaFe_(1-x)Cr_xO_3体系的晶体结构和光电子能谱研究[J].核技术,2002(10):859-863.

CHEN Zhigang 1, 2 IBRAHIM Kurash 2 DONG Yuhui 2 WU Ziyu 2 WEI Long 3 WANG Yutian 3 WANG Yunbo 1 Yu Jun 1 1. Crystal structure and X-ray photoelectron spectroscopy study of the transition-metal oxides LaFe_1-x Cr_xO₃[J]. Nuclear techniques, 2002, (10): 859-863.
[1]陈志刚,奎热西,董宇辉,吴自玉,魏龙,王雨田,王耘波,于军.过渡金属氧化物LaFe_(1-x)Cr_xO_3体系的晶体结构和光电子能谱研究[J].核技术,2002(10):859-863. DOI：

CHEN Zhigang 1, 2 IBRAHIM Kurash 2 DONG Yuhui 2 WU Ziyu 2 WEI Long 3 WANG Yutian 3 WANG Yunbo 1 Yu Jun 1 1. Crystal structure and X-ray photoelectron spectroscopy study of the transition-metal oxides LaFe_1-x Cr_xO₃[J]. Nuclear techniques, 2002, (10): 859-863. DOI：

摘要

我们在端点化合物LaFeO3中掺入Cr3+

制备了LaFe1-xCrxO3体系的系列样品。经XRD分析证明所制备的样品为单相体系

用MarqX程序对XRD数据进行分析得到其晶格常数。分别测定了入射光子能量在Fe 2 p吸收边以下和以上的O 1s芯能级谱。从电子结构角度探讨了该体系晶体结构变化趋势。初步得出结论 :随着Cr3+掺杂量在LaFe1-xCrxO3中的增加

O 2 p向Cr 3d的电荷转移量也发生有规律的变化。

Abstract

LaFe 1- x Cr x O 3 systematic compounds were prepared by Cr 3+ doping into the end component LaFeO 3. The crystal constants have been evaluated by using MarqX code. The analysis of the XRD data confirms that the perovskite compounds are in their single-phase state. We have also performed O 1s core-level photoemission experiments using photon energies above and below Fe 2p absorption edge

respectively

in order to investigate the crystal structure variation trend in terms of electronic structure. A preliminary conclusion has been drawn that the charge transfer amount from O 2p to Cr 3d varies regularly with the doping level of Cr 3+ in LaFe 1- x Cr x O 3.

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