Field emission properties of fractal surfaces

Detalhes bibliográficos
Autor(a) principal: Assis, Thiago Albuquerque de
Data de Publicação: 2008
Outros Autores: Borondo, F., Benito, Rosa M., Andrade, Roberto Fernandes Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/13878
Resumo: p. 1-7
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spelling Assis, Thiago Albuquerque deBorondo, F.Benito, Rosa M.Andrade, Roberto Fernandes SilvaAssis, Thiago Albuquerque deBorondo, F.Benito, Rosa M.Andrade, Roberto Fernandes Silva2013-11-26T12:48:05Z2013-11-26T12:48:05Z20081098-0121http://repositorio.ufba.br/ri/handle/ri/13878v. 78, n. 23p. 1-7The density of emission current by a rough surface with fractal structure is analyzed. A possible experimental setup is modeled by an irregular emitting surface, iteratively generated by a fractional Brownian motion (FBM) algorithm with roughness (or Hurst) exponent H=0.3 and a far away plane representing the anode. The boundaries are held at a fixed potential difference and the Laplace’s equation, with lateral periodic conditions, was numerically solved. The solution for the potential leads to the evaluation of the local field and, subsequently, the current density evaluated by using the Fowler-Nordheim’s approach. The results hint at a strong local dependence of the electric field with small variations in the roughness of the irregular boundary. The value of the turn-on electric field is found to be ∼8×106 V/cm. Finally, Fowler-plot curves make possible to discuss the connection between the field amplification factor and geometric properties of the emitter surfaces.Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2013-11-20T10:35:16Z No. of bitstreams: 1 PhysRevB.78.235427-1.pdf: 449941 bytes, checksum: eb89ba43bdd191400c31c0e08b749b03 (MD5)Approved for entry into archive by Rodrigo Meirelles (rodrigomei@ufba.br) on 2013-11-26T12:48:05Z (GMT) No. of bitstreams: 1 PhysRevB.78.235427-1.pdf: 449941 bytes, checksum: eb89ba43bdd191400c31c0e08b749b03 (MD5)Made available in DSpace on 2013-11-26T12:48:05Z (GMT). No. of bitstreams: 1 PhysRevB.78.235427-1.pdf: 449941 bytes, checksum: eb89ba43bdd191400c31c0e08b749b03 (MD5) Previous issue date: 2008http://dx.doi.org/10.1103/PhysRevB.78.235427reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAField emission properties of fractal surfacesPhysical Review Binfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrasilinfo:eu-repo/semantics/openAccessengORIGINALPhysRevB.78.235427-1.pdfPhysRevB.78.235427-1.pdfapplication/pdf449941https://repositorio.ufba.br/bitstream/ri/13878/1/PhysRevB.78.235427-1.pdfeb89ba43bdd191400c31c0e08b749b03MD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/13878/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXTPhysRevB.78.235427-1.pdf.txtPhysRevB.78.235427-1.pdf.txtExtracted texttext/plain33985https://repositorio.ufba.br/bitstream/ri/13878/3/PhysRevB.78.235427-1.pdf.txtd9bc9baa1d291a01ba4c3f5988d83815MD53ri/138782022-08-08 13:17:34.24oai:repositorio.ufba.br:ri/13878VGVybW8gZGUgTGljZW7vv71hLCBu77+9byBleGNsdXNpdm8sIHBhcmEgbyBkZXDvv71zaXRvIG5vIFJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVRkJBLgoKIFBlbG8gcHJvY2Vzc28gZGUgc3VibWlzc++/vW8gZGUgZG9jdW1lbnRvcywgbyBhdXRvciBvdSBzZXUgcmVwcmVzZW50YW50ZSBsZWdhbCwgYW8gYWNlaXRhciAKZXNzZSB0ZXJtbyBkZSBsaWNlbu+/vWEsIGNvbmNlZGUgYW8gUmVwb3NpdO+/vXJpbyBJbnN0aXR1Y2lvbmFsIGRhIFVuaXZlcnNpZGFkZSBGZWRlcmFsIGRhIEJhaGlhIApvIGRpcmVpdG8gZGUgbWFudGVyIHVtYSBj77+9cGlhIGVtIHNldSByZXBvc2l077+9cmlvIGNvbSBhIGZpbmFsaWRhZGUsIHByaW1laXJhLCBkZSBwcmVzZXJ2Ye+/ve+/vW8uIApFc3NlcyB0ZXJtb3MsIG7vv71vIGV4Y2x1c2l2b3MsIG1hbnTvv71tIG9zIGRpcmVpdG9zIGRlIGF1dG9yL2NvcHlyaWdodCwgbWFzIGVudGVuZGUgbyBkb2N1bWVudG8gCmNvbW8gcGFydGUgZG8gYWNlcnZvIGludGVsZWN0dWFsIGRlc3NhIFVuaXZlcnNpZGFkZS4KCiBQYXJhIG9zIGRvY3VtZW50b3MgcHVibGljYWRvcyBjb20gcmVwYXNzZSBkZSBkaXJlaXRvcyBkZSBkaXN0cmlidWnvv73vv71vLCBlc3NlIHRlcm1vIGRlIGxpY2Vu77+9YSAKZW50ZW5kZSBxdWU6CgogTWFudGVuZG8gb3MgZGlyZWl0b3MgYXV0b3JhaXMsIHJlcGFzc2Fkb3MgYSB0ZXJjZWlyb3MsIGVtIGNhc28gZGUgcHVibGljYe+/ve+/vWVzLCBvIHJlcG9zaXTvv71yaW8KcG9kZSByZXN0cmluZ2lyIG8gYWNlc3NvIGFvIHRleHRvIGludGVncmFsLCBtYXMgbGliZXJhIGFzIGluZm9ybWHvv73vv71lcyBzb2JyZSBvIGRvY3VtZW50bwooTWV0YWRhZG9zIGVzY3JpdGl2b3MpLgoKIERlc3RhIGZvcm1hLCBhdGVuZGVuZG8gYW9zIGFuc2Vpb3MgZGVzc2EgdW5pdmVyc2lkYWRlIGVtIG1hbnRlciBzdWEgcHJvZHXvv73vv71vIGNpZW5077+9ZmljYSBjb20gCmFzIHJlc3Ryae+/ve+/vWVzIGltcG9zdGFzIHBlbG9zIGVkaXRvcmVzIGRlIHBlcmnvv71kaWNvcy4KCiBQYXJhIGFzIHB1YmxpY2Hvv73vv71lcyBzZW0gaW5pY2lhdGl2YXMgcXVlIHNlZ3VlbSBhIHBvbO+/vXRpY2EgZGUgQWNlc3NvIEFiZXJ0bywgb3MgZGVw77+9c2l0b3MgCmNvbXB1bHPvv71yaW9zIG5lc3NlIHJlcG9zaXTvv71yaW8gbWFudO+/vW0gb3MgZGlyZWl0b3MgYXV0b3JhaXMsIG1hcyBtYW5077+9bSBhY2Vzc28gaXJyZXN0cml0byAKYW8gbWV0YWRhZG9zIGUgdGV4dG8gY29tcGxldG8uIEFzc2ltLCBhIGFjZWl0Ye+/ve+/vW8gZGVzc2UgdGVybW8gbu+/vW8gbmVjZXNzaXRhIGRlIGNvbnNlbnRpbWVudG8KIHBvciBwYXJ0ZSBkZSBhdXRvcmVzL2RldGVudG9yZXMgZG9zIGRpcmVpdG9zLCBwb3IgZXN0YXJlbSBlbSBpbmljaWF0aXZhcyBkZSBhY2Vzc28gYWJlcnRvLgo=Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-08-08T16:17:34Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Field emission properties of fractal surfaces
dc.title.alternative.pt_BR.fl_str_mv Physical Review B
title Field emission properties of fractal surfaces
spellingShingle Field emission properties of fractal surfaces
Assis, Thiago Albuquerque de
title_short Field emission properties of fractal surfaces
title_full Field emission properties of fractal surfaces
title_fullStr Field emission properties of fractal surfaces
title_full_unstemmed Field emission properties of fractal surfaces
title_sort Field emission properties of fractal surfaces
author Assis, Thiago Albuquerque de
author_facet Assis, Thiago Albuquerque de
Borondo, F.
Benito, Rosa M.
Andrade, Roberto Fernandes Silva
author_role author
author2 Borondo, F.
Benito, Rosa M.
Andrade, Roberto Fernandes Silva
author2_role author
author
author
dc.contributor.author.fl_str_mv Assis, Thiago Albuquerque de
Borondo, F.
Benito, Rosa M.
Andrade, Roberto Fernandes Silva
Assis, Thiago Albuquerque de
Borondo, F.
Benito, Rosa M.
Andrade, Roberto Fernandes Silva
description p. 1-7
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2013-11-26T12:48:05Z
dc.date.available.fl_str_mv 2013-11-26T12:48:05Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/13878
dc.identifier.issn.none.fl_str_mv 1098-0121
dc.identifier.number.pt_BR.fl_str_mv v. 78, n. 23
identifier_str_mv 1098-0121
v. 78, n. 23
url http://repositorio.ufba.br/ri/handle/ri/13878
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.country.fl_str_mv Brasil
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1103/PhysRevB.78.235427
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