Interface structure and work function of W-Cu interfaces
First principles calculation reveals that W-Cu interfaces have high interface strength when the number of overlayers is less than 2, and that (111)Cu/(110)W and (110)Cu/(110)W interfaces with one overlayer are both energetically favorable with big negative interface energies. Calculation also shows...
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| Veröffentlicht in: | Applied physics letters 2013-11, Vol.103 (21) |
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| container_title | Applied physics letters |
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| creator | Liang, C. P. Fan, J. L. Gong, H. R. Liao, Xiangke Zhu, Xiaoqian Peng, Shaoliang |
| description | First principles calculation reveals that W-Cu interfaces have high interface strength when the number of overlayers is less than 2, and that (111)Cu/(110)W and (110)Cu/(110)W interfaces with one overlayer are both energetically favorable with big negative interface energies. Calculation also shows that negative interface energy serves as the driving force for interdiffusion and alloying of immiscible W and Cu, and that interface orientation fundamentally induces different behaviors of work functions of W-Cu interfaces. The calculated results agree well with experimental observations, and clarify two experimental controversies regarding interface stability and work function of W-Cu interfaces in the literature. |
| doi_str_mv | 10.1063/1.4833249 |
| format | Article |
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The calculated results agree well with experimental observations, and clarify two experimental controversies regarding interface stability and work function of W-Cu interfaces in the literature.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.4833249</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Alloying ; Applied physics ; First principles ; Interdiffusion ; Interface stability ; Interfacial strength ; Mathematical analysis ; Work functions</subject><ispartof>Applied physics letters, 2013-11, Vol.103 (21)</ispartof><rights>2013 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c325t-2c398acec8698cb0e2dbc05c4f2856261a0abc356c68cbbe84fb738c7fbcf4d53</citedby><cites>FETCH-LOGICAL-c325t-2c398acec8698cb0e2dbc05c4f2856261a0abc356c68cbbe84fb738c7fbcf4d53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,27928,27929</link.rule.ids></links><search><creatorcontrib>Liang, C. 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| ispartof | Applied physics letters, 2013-11, Vol.103 (21) |
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| language | eng |
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| source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
| subjects | Alloying Applied physics First principles Interdiffusion Interface stability Interfacial strength Mathematical analysis Work functions |
| title | Interface structure and work function of W-Cu interfaces |
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