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An extensive Raman ...
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Piao, YinghuaState Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, Kina
(author)
An extensive Raman spectroscopic investigation of ultrathin Co1-xNixSi2 films grown on Si(100)
- Article/chapterEnglish2012
Publisher, publication year, extent ...
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American Vacuum Society,2012
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Numbers
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LIBRIS-ID:oai:DiVA.org:uu-180107
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-180107URI
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https://doi.org/10.1116/1.4726295DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Ultrathin silicide films were formed by starting from 1-8 nm thick Co1-xNix (x = 0, 0.25, 0.5, 0.75, and 1) at 350 degrees C-900 degrees C. For each composition x, there exists a critical thickness above which the transition temperature from monosilicides CoSi and NiSi to a disilicide-like phase increases with increasing film thickness. Below this thickness, the disilicide phase seems to form without exhibiting the monosilicides within the detection resolution limits of transmission electron microscopy and Raman spectroscopy. Raman spectroscopic analysis seems to indicate that Ni could be dissolved in the CoSi lattice to a certain fraction despite the fact that CoSi and NiSi are distinct with different crystallographic structures. Moreover, the disorder-induced Raman scattering in NiSi2 is found to be enhanced by Co incorporation. The observed annealing behaviors are attributed to variations in free energy change for phase transition caused by differences in metal thickness.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Zhu, ZhiweiUppsala universitet,Fasta tillståndets elektronik(Swepub:uu)zhizh813
(author)
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Gao, XindongUppsala universitet,Fasta tillståndets elektronik(Swepub:uu)xinga567
(author)
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Karabko, AleksandraDept of Electronic Techniques and Technologies, Belarusian State University of Informatics and Radioelectronics, Minsk, Vitryssland
(author)
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Hu, CState Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, Kina
(author)
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Qiu, Z.-JState Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, Kina
(author)
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Luo, JunInstitute of Microelectronics, Chinese Academy of Sciences, Beijing, Kina
(author)
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Zhang, Zhi-BinUppsala universitet,Fasta tillståndets elektronik(Swepub:uu)zhizh813
(author)
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Zhang, Shi-LiUppsala universitet,Fasta tillståndets elektronik(Swepub:uu)shizh725
(author)
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Wu, DonpingState Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, Kina
(author)
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State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, KinaFasta tillståndets elektronik
(creator_code:org_t)
Related titles
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In:Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films: American Vacuum Society30:4, s. 041511-0415180734-21011520-8559
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Piao, Yinghua
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Zhu, Zhiwei
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Gao, Xindong
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Karabko, Aleksan ...
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Hu, C
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Qiu, Z.-J
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Luo, Jun
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Zhang, Zhi-Bin
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Zhang, Shi-Li
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Wu, Donping
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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Uppsala University