Morphology and Polarity of GaN Single Crystals Synthesized by the Na Flux Method
The correlation between morphology and polarity was investigated for GaN single crystals synthesized by the Na flux method. The polarity was identified by using anomalous X-ray dispersion. Colorless transparent prismatic single crystals were classified into three types. The first had a smooth basal...
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| Veröffentlicht in: | Crystal growth & design 2002-01, Vol.2 (1), p.55-58 |
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| creator | Aoki, Masato Yamane, Hisanori Shimada, Masahiko Kajiwara, Takashi Sarayama, Seiji DiSalvo, Francis J |
| description | The correlation between morphology and polarity was investigated for GaN single crystals synthesized by the Na flux method. The polarity was identified by using anomalous X-ray dispersion. Colorless transparent prismatic single crystals were classified into three types. The first had a smooth basal plane face and no hexagonal pyramidal faces, the second had smooth pyramidal faces, and the third had a rough basal plane face and rough pyramidal faces. The prismatic crystals with smooth surfaces had N-polarity and grew in the −c direction, whereas the crystals having rough surfaces had Ga-polarity and grew in the +c direction. In colorless transparent platelet single crystals, one side of the basal planes had a mirror smooth surface, while the other side had many step edges and hexagonal pits. The smooth basal plane and the rough basal plane were the (0001̄) N-face and (0001) Ga-face, respectively. Black pyramidal crystals had a smooth (0001) basal plane face corresponding to the Ga-face. |
| doi_str_mv | 10.1021/cg015548b |
| format | Article |
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The polarity was identified by using anomalous X-ray dispersion. Colorless transparent prismatic single crystals were classified into three types. The first had a smooth basal plane face and no hexagonal pyramidal faces, the second had smooth pyramidal faces, and the third had a rough basal plane face and rough pyramidal faces. The prismatic crystals with smooth surfaces had N-polarity and grew in the −c direction, whereas the crystals having rough surfaces had Ga-polarity and grew in the +c direction. In colorless transparent platelet single crystals, one side of the basal planes had a mirror smooth surface, while the other side had many step edges and hexagonal pits. The smooth basal plane and the rough basal plane were the (0001̄) N-face and (0001) Ga-face, respectively. Black pyramidal crystals had a smooth (0001) basal plane face corresponding to the Ga-face.</description><identifier>ISSN: 1528-7483</identifier><identifier>EISSN: 1528-7505</identifier><identifier>DOI: 10.1021/cg015548b</identifier><language>eng</language><publisher>Washington,DC: American Chemical Society</publisher><subject>Cross-disciplinary physics: materials science; rheology ; Exact sciences and technology ; Growth from solutions ; Materials science ; Methods of crystal growth; physics of crystal growth ; Physics ; Theory and models of crystal growth; physics of crystal growth, crystal morphology and orientation</subject><ispartof>Crystal growth & design, 2002-01, Vol.2 (1), p.55-58</ispartof><rights>Copyright © 2002 American Chemical Society</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a353t-8d41368eb1e897ec1f48553e14bf2527f341597276b4323991c33ae22bd49ce43</citedby><cites>FETCH-LOGICAL-a353t-8d41368eb1e897ec1f48553e14bf2527f341597276b4323991c33ae22bd49ce43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/cg015548b$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/cg015548b$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,780,784,2765,27076,27924,27925,56738,56788</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=14191270$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Aoki, Masato</creatorcontrib><creatorcontrib>Yamane, Hisanori</creatorcontrib><creatorcontrib>Shimada, Masahiko</creatorcontrib><creatorcontrib>Kajiwara, Takashi</creatorcontrib><creatorcontrib>Sarayama, Seiji</creatorcontrib><creatorcontrib>DiSalvo, Francis J</creatorcontrib><title>Morphology and Polarity of GaN Single Crystals Synthesized by the Na Flux Method</title><title>Crystal growth & design</title><addtitle>Cryst. Growth Des</addtitle><description>The correlation between morphology and polarity was investigated for GaN single crystals synthesized by the Na flux method. The polarity was identified by using anomalous X-ray dispersion. Colorless transparent prismatic single crystals were classified into three types. The first had a smooth basal plane face and no hexagonal pyramidal faces, the second had smooth pyramidal faces, and the third had a rough basal plane face and rough pyramidal faces. The prismatic crystals with smooth surfaces had N-polarity and grew in the −c direction, whereas the crystals having rough surfaces had Ga-polarity and grew in the +c direction. In colorless transparent platelet single crystals, one side of the basal planes had a mirror smooth surface, while the other side had many step edges and hexagonal pits. The smooth basal plane and the rough basal plane were the (0001̄) N-face and (0001) Ga-face, respectively. Black pyramidal crystals had a smooth (0001) basal plane face corresponding to the Ga-face.</description><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Growth from solutions</subject><subject>Materials science</subject><subject>Methods of crystal growth; physics of crystal growth</subject><subject>Physics</subject><subject>Theory and models of crystal growth; physics of crystal growth, crystal morphology and orientation</subject><issn>1528-7483</issn><issn>1528-7505</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNptkD1PwzAYhC0EEqUw8A-8MDAE_PojdkZU0YLUlkqFOXIcO00V4spOJcKvJ6hAF6a74bmT7hC6BnIHhMK9qQgIwVVxgkYgqEqkIOL013PFztFFjFtCiEwZG6HVwofdxje-6rFuS7zyjQ5112Pv8Ewv8bpuq8biSehjp5uI133bbWysP22Jix4PHi81njb7D7yw3caXl-jMDaC9-tExeps-vk6ekvnL7HnyME80E6xLVMmBpcoWYFUmrQHHlRDMAi8cFVQ6xkFkksq04IyyLAPDmLaUFiXPjOVsjG4PvSb4GIN1-S7U7zr0OZD8-4r874qBvTmwOx2NblzQranjMcAhAyrJkdMm5lu_D-2w4J--L5k2aHk</recordid><startdate>20020101</startdate><enddate>20020101</enddate><creator>Aoki, Masato</creator><creator>Yamane, Hisanori</creator><creator>Shimada, Masahiko</creator><creator>Kajiwara, Takashi</creator><creator>Sarayama, Seiji</creator><creator>DiSalvo, Francis J</creator><general>American Chemical Society</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20020101</creationdate><title>Morphology and Polarity of GaN Single Crystals Synthesized by the Na Flux Method</title><author>Aoki, Masato ; Yamane, Hisanori ; Shimada, Masahiko ; Kajiwara, Takashi ; Sarayama, Seiji ; DiSalvo, Francis J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a353t-8d41368eb1e897ec1f48553e14bf2527f341597276b4323991c33ae22bd49ce43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Cross-disciplinary physics: materials science; rheology</topic><topic>Exact sciences and technology</topic><topic>Growth from solutions</topic><topic>Materials science</topic><topic>Methods of crystal growth; physics of crystal growth</topic><topic>Physics</topic><topic>Theory and models of crystal growth; physics of crystal growth, crystal morphology and orientation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aoki, Masato</creatorcontrib><creatorcontrib>Yamane, Hisanori</creatorcontrib><creatorcontrib>Shimada, Masahiko</creatorcontrib><creatorcontrib>Kajiwara, Takashi</creatorcontrib><creatorcontrib>Sarayama, Seiji</creatorcontrib><creatorcontrib>DiSalvo, Francis J</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Crystal growth & design</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aoki, Masato</au><au>Yamane, Hisanori</au><au>Shimada, Masahiko</au><au>Kajiwara, Takashi</au><au>Sarayama, Seiji</au><au>DiSalvo, Francis J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Morphology and Polarity of GaN Single Crystals Synthesized by the Na Flux Method</atitle><jtitle>Crystal growth & design</jtitle><addtitle>Cryst. Growth Des</addtitle><date>2002-01-01</date><risdate>2002</risdate><volume>2</volume><issue>1</issue><spage>55</spage><epage>58</epage><pages>55-58</pages><issn>1528-7483</issn><eissn>1528-7505</eissn><abstract>The correlation between morphology and polarity was investigated for GaN single crystals synthesized by the Na flux method. The polarity was identified by using anomalous X-ray dispersion. Colorless transparent prismatic single crystals were classified into three types. The first had a smooth basal plane face and no hexagonal pyramidal faces, the second had smooth pyramidal faces, and the third had a rough basal plane face and rough pyramidal faces. The prismatic crystals with smooth surfaces had N-polarity and grew in the −c direction, whereas the crystals having rough surfaces had Ga-polarity and grew in the +c direction. In colorless transparent platelet single crystals, one side of the basal planes had a mirror smooth surface, while the other side had many step edges and hexagonal pits. The smooth basal plane and the rough basal plane were the (0001̄) N-face and (0001) Ga-face, respectively. Black pyramidal crystals had a smooth (0001) basal plane face corresponding to the Ga-face.</abstract><cop>Washington,DC</cop><pub>American Chemical Society</pub><doi>10.1021/cg015548b</doi><tpages>4</tpages></addata></record> |
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| subjects | Cross-disciplinary physics: materials science rheology Exact sciences and technology Growth from solutions Materials science Methods of crystal growth physics of crystal growth Physics Theory and models of crystal growth physics of crystal growth, crystal morphology and orientation |
| title | Morphology and Polarity of GaN Single Crystals Synthesized by the Na Flux Method |
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