Influence of the oxygen pressure on the preferred orientation and optical properties of the pulsed-laser deposited Mn1.56Co0.96Ni0.48O4 +/-delta thin films
Kong, WW (Kong, Wenwen); Gao, B (Gao, Bo); Jiang, CP (Jiang, Chunping); Chang, AM (Chang, Aimin)
2015
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
卷号650期号:11页码:305-310
摘要

Mn1.56Co0.96Ni0.48O4 +/-delta (MCN) thin films with different oxygen pressures (in the range of 2 x 10(-4) to 2 Pa) are prepared on Si(100)/SiOx substrates by pulsed laser deposition technique. Effects of oxygen pressures on the microstructure and optical properties of the prepared thin films are investigated in detail. The grain sizes of films gradually decrease and the preferential orientation of the MCN films change from (400) to (113) as the oxygen pressure increases. The x-ray photoelectron spectroscopy results show that the composition of these films is proximity to that of the bulk material. In addition, the Mn3+/Mn4+ pairs increase with an increase in the oxygen pressures increase. From spectroscopic ellipsometer spectroscopy, it is found that both the refractive index n and extinction coefficient k of the (400)-oriented films have no obvious peaks, whereas in the (113)-oriented films, peaks are exist. This feature typically originates from a change in the crystal structure as oxygen pressures increase. Furthermore, the Raman active mode (around ca. 650 cm(-1)) of (400) films almost disappears, whilst the active mode in (113) films remain.

关键词Mn1.56co0.96ni0.48o4 +/-delta Thin Films Preferential Orientations Optical Properties Raman
DOI10.1016/j.jallcom.2015.07.257
收录类别SCI
WOS记录号WOS:000361519300044
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/4326
专题中国科学院特殊环境功能材料与器件重点试验室
材料物理与化学研究室
通讯作者Chang, AM (Chang, Aimin)
作者单位1.Univ Elect Sci & Technol China, Fac Microelect & Solid State Elect, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China
2.Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China
3.Sichuan Univ, State Key Lab Polymer Mat Engn, Chengdu 610054, Peoples R China
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Kong, WW ,Gao, B ,Jiang, CP ,et al. Influence of the oxygen pressure on the preferred orientation and optical properties of the pulsed-laser deposited Mn1.56Co0.96Ni0.48O4 +/-delta thin films[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2015,650(11):305-310.
APA Kong, WW ,Gao, B ,Jiang, CP ,&Chang, AM .(2015).Influence of the oxygen pressure on the preferred orientation and optical properties of the pulsed-laser deposited Mn1.56Co0.96Ni0.48O4 +/-delta thin films.JOURNAL OF ALLOYS AND COMPOUNDS,650(11),305-310.
MLA Kong, WW ,et al."Influence of the oxygen pressure on the preferred orientation and optical properties of the pulsed-laser deposited Mn1.56Co0.96Ni0.48O4 +/-delta thin films".JOURNAL OF ALLOYS AND COMPOUNDS 650.11(2015):305-310.
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