DC Field | Value | Language |
---|---|---|
dc.contributor.author | Han, Woo Hyun | ko |
dc.contributor.author | Oh, Young Jun | ko |
dc.contributor.author | Choe, Duk-Hyun | ko |
dc.contributor.author | Kim, Sunghyun | ko |
dc.contributor.author | Lee, In-Ho | ko |
dc.contributor.author | Chang, Kee Joo | ko |
dc.date.accessioned | 2017-08-16T08:53:26Z | - |
dc.date.available | 2017-08-16T08:53:26Z | - |
dc.date.created | 2017-07-24 | - |
dc.date.created | 2017-07-24 | - |
dc.date.created | 2017-07-24 | - |
dc.date.issued | 2017-07 | - |
dc.identifier.citation | NPG ASIA MATERIALS, v.9, pp.e400 - e400 | - |
dc.identifier.issn | 1884-4049 | - |
dc.identifier.uri | http://hdl.handle.net/10203/225338 | - |
dc.description.abstract | In the phase diagram of elemental boron, an unknown high-pressure form was identified as gamma-orthorhombic boron (gamma-B-28), provoking studies of the extraordinary properties of its main building blocks, B-12 icosahedra and B-2 dumbbells. Although two low-pressure phases, alpha- and beta-rhombohedral boron (alpha-B-12 and beta-B-106), are also composed of icosahedra, the detailed kinetics and mechanisms of the structural transition from alpha-B-12 or beta-B-106 to gamma-B-28 remain poorly understood. We report on new metastable boron phases formed during the transition in high-pressure high-temperature conditions that were discovered using the crystal structure search method. The metastable phases are understood to be a three-dimensional buckled defective honeycomb lattice in which boron vacancies lead to a dynamically and mechanically stable structure with triangular motifs. We suggest that the metastable phases act as intermediate states on the transition pathway from alpha-B-12 to gamma-B-28 owing to their structural flexibility and low enthalpies, in the framework of Ostwald's step rule. | - |
dc.language | English | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | RHOMBOHEDRAL BORON | - |
dc.subject | CRYSTAL-STRUCTURE | - |
dc.subject | POLYMORPHS | - |
dc.subject | DESIGN | - |
dc.subject | FORM | - |
dc.title | Three-dimensional buckled honeycomb boron lattice with vacancies as an intermediate phase on the transition pathway from alpha-B to gamma-B | - |
dc.type | Article | - |
dc.identifier.wosid | 000404988500003 | - |
dc.identifier.scopusid | 2-s2.0-85022216720 | - |
dc.type.rims | ART | - |
dc.citation.volume | 9 | - |
dc.citation.beginningpage | e400 | - |
dc.citation.endingpage | e400 | - |
dc.citation.publicationname | NPG ASIA MATERIALS | - |
dc.identifier.doi | 10.1038/am.2017.98 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Chang, Kee Joo | - |
dc.contributor.nonIdAuthor | Oh, Young Jun | - |
dc.contributor.nonIdAuthor | Choe, Duk-Hyun | - |
dc.contributor.nonIdAuthor | Lee, In-Ho | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | RHOMBOHEDRAL BORON | - |
dc.subject.keywordPlus | CRYSTAL-STRUCTURE | - |
dc.subject.keywordPlus | POLYMORPHS | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | FORM | - |
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