Binding energies of excitons trapped by ionized donors in semiconductors
Autor(a) principal: | |
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Data de Publicação: | 2001 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevB.64.195210 http://hdl.handle.net/11449/219260 |
Resumo: | Using the hyperspherical adiabatic approach in a coupled-channel calculation, we present precise binding energies of excitons trapped by impurity donors in semiconductors within the effective-mass approximation. Energies for such three-body systems are presented as a function of the relative electron-hole mass σ in the range 1⩽1/σ⩽6, where the Born-Oppenheimer approach is not efficiently applicable. The hyperspherical approach leads to precise energies using the intuitive picture of potential curves and nonadiabatic couplings in an ab initio procedure. We also present an estimation for a critical value of σ (formula presented) for which no bound state can be found. Comparisons are given with results of prior work by other authors. © 2001 The American Physical Society. |
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Repositório Institucional da UNESP |
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Binding energies of excitons trapped by ionized donors in semiconductorsUsing the hyperspherical adiabatic approach in a coupled-channel calculation, we present precise binding energies of excitons trapped by impurity donors in semiconductors within the effective-mass approximation. Energies for such three-body systems are presented as a function of the relative electron-hole mass σ in the range 1⩽1/σ⩽6, where the Born-Oppenheimer approach is not efficiently applicable. The hyperspherical approach leads to precise energies using the intuitive picture of potential curves and nonadiabatic couplings in an ab initio procedure. We also present an estimation for a critical value of σ (formula presented) for which no bound state can be found. Comparisons are given with results of prior work by other authors. © 2001 The American Physical Society.Instituto de Física de São Carlos Universidade de São Paulo–USP, Caixa Postal 369, 13 560-970 São Carlos, SPAssociação de Escolas Reunidas–ASSER, Rua Miguel Petroni 5111, 13 563-470 São Carlos, SPInstituto de Química de Araraquara Universidade Estadual Paulista–UNESP, Caixa Postal 355, 14 801-970 Araraquara, SPInstituto de Química de Araraquara Universidade Estadual Paulista–UNESP, Caixa Postal 355, 14 801-970 Araraquara, SPUniversidade de São Paulo (USP)Associação de Escolas Reunidas–ASSERUniversidade Estadual Paulista (UNESP)dos Santos, A. S.Masili, MauroDe Groote, J. J. [UNESP]2022-04-28T18:54:35Z2022-04-28T18:54:35Z2001-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevB.64.195210Physical Review B - Condensed Matter and Materials Physics, v. 64, n. 19, 2001.1550-235X1098-0121http://hdl.handle.net/11449/21926010.1103/PhysRevB.64.1952102-s2.0-0035891036Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review B - Condensed Matter and Materials Physicsinfo:eu-repo/semantics/openAccess2022-04-28T18:54:36Zoai:repositorio.unesp.br:11449/219260Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T18:54:36Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Binding energies of excitons trapped by ionized donors in semiconductors |
title |
Binding energies of excitons trapped by ionized donors in semiconductors |
spellingShingle |
Binding energies of excitons trapped by ionized donors in semiconductors dos Santos, A. S. |
title_short |
Binding energies of excitons trapped by ionized donors in semiconductors |
title_full |
Binding energies of excitons trapped by ionized donors in semiconductors |
title_fullStr |
Binding energies of excitons trapped by ionized donors in semiconductors |
title_full_unstemmed |
Binding energies of excitons trapped by ionized donors in semiconductors |
title_sort |
Binding energies of excitons trapped by ionized donors in semiconductors |
author |
dos Santos, A. S. |
author_facet |
dos Santos, A. S. Masili, Mauro De Groote, J. J. [UNESP] |
author_role |
author |
author2 |
Masili, Mauro De Groote, J. J. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Associação de Escolas Reunidas–ASSER Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
dos Santos, A. S. Masili, Mauro De Groote, J. J. [UNESP] |
description |
Using the hyperspherical adiabatic approach in a coupled-channel calculation, we present precise binding energies of excitons trapped by impurity donors in semiconductors within the effective-mass approximation. Energies for such three-body systems are presented as a function of the relative electron-hole mass σ in the range 1⩽1/σ⩽6, where the Born-Oppenheimer approach is not efficiently applicable. The hyperspherical approach leads to precise energies using the intuitive picture of potential curves and nonadiabatic couplings in an ab initio procedure. We also present an estimation for a critical value of σ (formula presented) for which no bound state can be found. Comparisons are given with results of prior work by other authors. © 2001 The American Physical Society. |
publishDate |
2001 |
dc.date.none.fl_str_mv |
2001-01-01 2022-04-28T18:54:35Z 2022-04-28T18:54:35Z |
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://dx.doi.org/10.1103/PhysRevB.64.195210 Physical Review B - Condensed Matter and Materials Physics, v. 64, n. 19, 2001. 1550-235X 1098-0121 http://hdl.handle.net/11449/219260 10.1103/PhysRevB.64.195210 2-s2.0-0035891036 |
url |
http://dx.doi.org/10.1103/PhysRevB.64.195210 http://hdl.handle.net/11449/219260 |
identifier_str_mv |
Physical Review B - Condensed Matter and Materials Physics, v. 64, n. 19, 2001. 1550-235X 1098-0121 10.1103/PhysRevB.64.195210 2-s2.0-0035891036 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review B - Condensed Matter and Materials Physics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965624513855488 |