De Haas-van Alphen oscillations and magnetic breakdown : semiclassical calculation of multiband orbits

Detalhes bibliográficos
Autor(a) principal: Fortin, Jean-Yves
Data de Publicação: 1998
Outros Autores: Belissard, Jean, Gusmao, Miguel Angelo Cavalheiro, Ziman, Timothy
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/104249
Resumo: We use an algebraic method to compute de Haas–van Alphen oscillations in two-dimensional systems in the semiclassical approximation for cases where the Fermi surface lies on more than one sheet of the energy surface. We treat magnetic breakdown by computing the Riemann surface associated with the Bloch energy equation. The topology of this surface, in particular, its fundamental group, is used to classify electronic trajectories in the complexified Brillouin zone. Three examples taken from tight-binding models of quasi-twodimensional organic conductors show how this can be implemented to calculate frequencies and breakdown fields.
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spelling Fortin, Jean-YvesBelissard, JeanGusmao, Miguel Angelo CavalheiroZiman, Timothy2014-10-08T02:10:49Z19981098-0121http://hdl.handle.net/10183/104249000258182We use an algebraic method to compute de Haas–van Alphen oscillations in two-dimensional systems in the semiclassical approximation for cases where the Fermi surface lies on more than one sheet of the energy surface. We treat magnetic breakdown by computing the Riemann surface associated with the Bloch energy equation. The topology of this surface, in particular, its fundamental group, is used to classify electronic trajectories in the complexified Brillouin zone. Three examples taken from tight-binding models of quasi-twodimensional organic conductors show how this can be implemented to calculate frequencies and breakdown fields.application/pdfengPhysical review. B, Condensed matter and materials physics. Woodbury. Vol. 57, no. 3 (Jan. 1998), p. 1484-1497Física da matéria condensadaPropriedades magnéticasTopologiaMagnetorresistênciaDe Haas-van Alphen oscillations and magnetic breakdown : semiclassical calculation of multiband orbitsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000258182.pdf000258182.pdfTexto completo (inglês)application/pdf420033http://www.lume.ufrgs.br/bitstream/10183/104249/1/000258182.pdf54b59fc30c715f80791887020b129a4eMD51TEXT000258182.pdf.txt000258182.pdf.txtExtracted Texttext/plain64098http://www.lume.ufrgs.br/bitstream/10183/104249/2/000258182.pdf.txtf94a17eed074724786c7a4084696b62cMD52THUMBNAIL000258182.pdf.jpg000258182.pdf.jpgGenerated Thumbnailimage/jpeg2049http://www.lume.ufrgs.br/bitstream/10183/104249/3/000258182.pdf.jpg2288da5de38657e2038d44c58ba5d358MD5310183/1042492018-10-09 08:12:10.264oai:www.lume.ufrgs.br:10183/104249Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-09T11:12:10Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv De Haas-van Alphen oscillations and magnetic breakdown : semiclassical calculation of multiband orbits
title De Haas-van Alphen oscillations and magnetic breakdown : semiclassical calculation of multiband orbits
spellingShingle De Haas-van Alphen oscillations and magnetic breakdown : semiclassical calculation of multiband orbits
Fortin, Jean-Yves
Física da matéria condensada
Propriedades magnéticas
Topologia
Magnetorresistência
title_short De Haas-van Alphen oscillations and magnetic breakdown : semiclassical calculation of multiband orbits
title_full De Haas-van Alphen oscillations and magnetic breakdown : semiclassical calculation of multiband orbits
title_fullStr De Haas-van Alphen oscillations and magnetic breakdown : semiclassical calculation of multiband orbits
title_full_unstemmed De Haas-van Alphen oscillations and magnetic breakdown : semiclassical calculation of multiband orbits
title_sort De Haas-van Alphen oscillations and magnetic breakdown : semiclassical calculation of multiband orbits
author Fortin, Jean-Yves
author_facet Fortin, Jean-Yves
Belissard, Jean
Gusmao, Miguel Angelo Cavalheiro
Ziman, Timothy
author_role author
author2 Belissard, Jean
Gusmao, Miguel Angelo Cavalheiro
Ziman, Timothy
author2_role author
author
author
dc.contributor.author.fl_str_mv Fortin, Jean-Yves
Belissard, Jean
Gusmao, Miguel Angelo Cavalheiro
Ziman, Timothy
dc.subject.por.fl_str_mv Física da matéria condensada
Propriedades magnéticas
Topologia
Magnetorresistência
topic Física da matéria condensada
Propriedades magnéticas
Topologia
Magnetorresistência
description We use an algebraic method to compute de Haas–van Alphen oscillations in two-dimensional systems in the semiclassical approximation for cases where the Fermi surface lies on more than one sheet of the energy surface. We treat magnetic breakdown by computing the Riemann surface associated with the Bloch energy equation. The topology of this surface, in particular, its fundamental group, is used to classify electronic trajectories in the complexified Brillouin zone. Three examples taken from tight-binding models of quasi-twodimensional organic conductors show how this can be implemented to calculate frequencies and breakdown fields.
publishDate 1998
dc.date.issued.fl_str_mv 1998
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Physical review. B, Condensed matter and materials physics. Woodbury. Vol. 57, no. 3 (Jan. 1998), p. 1484-1497
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