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Article: Direct observation of a Ga adlayer on a GaN(0001) surface by LEED Patterson inversion
Title | Direct observation of a Ga adlayer on a GaN(0001) surface by LEED Patterson inversion |
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Authors | |
Keywords | Physics |
Issue Date | 2003 |
Publisher | American Physical Society. The Journal's web site is located at http://prb.aps.org/ |
Citation | Physical Review B (Condensed Matter), 2003, v. 67 n. 12, article no. 125409 , p. 1-4 How to Cite? |
Abstract | A low-energy electron diffraction (LEED) Patterson function (PF) with multiple incident angles is used to obtain three-dimensional interatomic information of hexagonal GaN(0001) grown on a 6H-SiC(0001)-√3 x √3 surface. A Ga-Ga atomic pair between the Ga adlayer and the terminating Ga layer is observed in the LEED PF. This provides direct experimental evidence to support the structural model proposed by first-principles calculations. The LEED PF also shows that the GaN film has a hexagonal structure and the surface has single-bilayer steps. |
Persistent Identifier | http://hdl.handle.net/10722/43389 |
ISSN | |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Xu, SH | en_HK |
dc.contributor.author | Wu, H | en_HK |
dc.contributor.author | Dai, XQ | en_HK |
dc.contributor.author | Lau, WP | en_HK |
dc.contributor.author | Zheng, LX | en_HK |
dc.contributor.author | Xie, MH | en_HK |
dc.contributor.author | Tong, SY | en_HK |
dc.date.accessioned | 2007-03-23T04:44:46Z | - |
dc.date.available | 2007-03-23T04:44:46Z | - |
dc.date.issued | 2003 | en_HK |
dc.identifier.citation | Physical Review B (Condensed Matter), 2003, v. 67 n. 12, article no. 125409 , p. 1-4 | - |
dc.identifier.issn | 0163-1829 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/43389 | - |
dc.description.abstract | A low-energy electron diffraction (LEED) Patterson function (PF) with multiple incident angles is used to obtain three-dimensional interatomic information of hexagonal GaN(0001) grown on a 6H-SiC(0001)-√3 x √3 surface. A Ga-Ga atomic pair between the Ga adlayer and the terminating Ga layer is observed in the LEED PF. This provides direct experimental evidence to support the structural model proposed by first-principles calculations. The LEED PF also shows that the GaN film has a hexagonal structure and the surface has single-bilayer steps. | en_HK |
dc.format.extent | 449374 bytes | - |
dc.format.extent | 26624 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.format.mimetype | application/msword | - |
dc.language | eng | en_HK |
dc.publisher | American Physical Society. The Journal's web site is located at http://prb.aps.org/ | en_HK |
dc.relation.ispartof | Physical Review B (Condensed Matter) | - |
dc.rights | Copyright 2003 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevB.67.125409 | - |
dc.subject | Physics | en_HK |
dc.title | Direct observation of a Ga adlayer on a GaN(0001) surface by LEED Patterson inversion | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=67&issue=12&spage=125409:1&epage=4&date=2003&atitle=Direct+observation+of+a+Ga+adlayer+on+a+GaN(0001)+surface+by+LEED+Patterson+inversion | en_HK |
dc.identifier.email | Wu, H: hswu@hkucc.hku.hk | en_HK |
dc.identifier.email | Xie, MH: mhxie@hku.hk | en_HK |
dc.identifier.authority | Wu, H=rp00813 | en_HK |
dc.identifier.authority | Xie, MH=rp00818 | en_HK |
dc.description.nature | published_or_final_version | en_HK |
dc.identifier.doi | 10.1103/PhysRevB.67.125409 | en_HK |
dc.identifier.scopus | eid_2-s2.0-0038558145 | en_HK |
dc.identifier.hkuros | 77193 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0038558145&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 67 | en_HK |
dc.identifier.issue | 12 | en_HK |
dc.identifier.spage | article no. 125409, p. 1 | - |
dc.identifier.epage | article no. 125409, p. 4 | - |
dc.identifier.isi | WOS:000182158000092 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Xu, SH=36832008600 | en_HK |
dc.identifier.scopusauthorid | Wu, H=7405584367 | en_HK |
dc.identifier.scopusauthorid | Dai, XQ=55237280400 | en_HK |
dc.identifier.scopusauthorid | Lau, WP=7402933207 | en_HK |
dc.identifier.scopusauthorid | Zheng, LX=7403405881 | en_HK |
dc.identifier.scopusauthorid | Xie, MH=7202255416 | en_HK |
dc.identifier.scopusauthorid | Tong, SY=24512624800 | en_HK |
dc.identifier.issnl | 0163-1829 | - |