Fabrication of BaKFeAs intergrain nanobridges by using a focused ion beam
DC Field | Value | Language |
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dc.contributor.author | Hong, Sung-Hak | - |
dc.contributor.author | Lee, Sung Hoon | - |
dc.contributor.author | Lee, Soon-Gul | - |
dc.contributor.author | Jung, Soon-Gil | - |
dc.contributor.author | Lee, Nam Hoon | - |
dc.contributor.author | Kang, Won Nam | - |
dc.date.accessioned | 2021-09-06T13:44:32Z | - |
dc.date.available | 2021-09-06T13:44:32Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2012-11 | - |
dc.identifier.issn | 0374-4884 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/107038 | - |
dc.description.abstract | We have studied the fabrication and the transport properties of Ba0.6K0.4Fe2As2 intergrain nanobridges patterned by using a focused ion beam (FIB). Prior to FIB etching, 8-A mu m-wide bridges were prepatterned from Ba0.6K0.4Fe2As2 films by using argon ion milling with a photoresist mask. The lowest-possible beam current of 1.5 pA was used for the FIB nanobridge pattern to minimize the etching damage to the bridge. The nanobridge contained a single grain boundary, and the nominal dimensions were 200 nm in width and 100 nm in length. We have also studied current-voltage (I-V) characteristics, the temperature-dependent critical current (I (c) ), and the normal-state resistance (RN). The transport measurements of the nanobridge showed a strong-coupling nature with a high critical current density of 1.25 x 10(6) A/cm(2) at 4.2 K, which is comparable to the intragrain value. The nanobridge showed the onset of a resistive transition at 37 K and zero resistance at 27 K. Measured I-V curves were dominated mainly by Josephson coupling, showing resistivelyshunted-junction (RSJ) behaviors with multiple transitions at low temperatures. The temperature dependence of the critical current was I (c) similar to (1 - T/T (c) )1.0. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | KOREAN PHYSICAL SOC | - |
dc.subject | SUPERCONDUCTIVITY | - |
dc.subject | JUNCTIONS | - |
dc.subject | SYMMETRY | - |
dc.title | Fabrication of BaKFeAs intergrain nanobridges by using a focused ion beam | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Soon-Gul | - |
dc.identifier.doi | 10.3938/jkps.61.1449 | - |
dc.identifier.scopusid | 2-s2.0-84869463376 | - |
dc.identifier.wosid | 000311395700023 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.61, no.9, pp.1449 - 1452 | - |
dc.relation.isPartOf | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.citation.title | JOURNAL OF THE KOREAN PHYSICAL SOCIETY | - |
dc.citation.volume | 61 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 1449 | - |
dc.citation.endPage | 1452 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART001717698 | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Physics, Multidisciplinary | - |
dc.subject.keywordPlus | SUPERCONDUCTIVITY | - |
dc.subject.keywordPlus | JUNCTIONS | - |
dc.subject.keywordPlus | SYMMETRY | - |
dc.subject.keywordAuthor | Ba0.6K0.4Fe2As2 superconductor | - |
dc.subject.keywordAuthor | Intergrain nanobridge | - |
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