REPOSITORIO
INSTITUCIONAL

    • español
    • English
  • Site map
  • English 
    • español
    • English
  • Login
  • Artículos(current)
  • Libros
  • Tesis
  • Trabajos de grado
  • Documentos Institucionales
    • Actas
    • Acuerdos
    • Decretos
    • Resoluciones
  • Multimedia
  • Productos de investigación
  • Acerca de
View Item 
  •   Home
  • Artículos
  • Indexados Scopus
  • View Item
  •   Home
  • Artículos
  • Indexados Scopus
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Two-dimensional Weyl points and nodal lines in pentagonal materials and their optical response

Thumbnail
Share this
Date
2021
Author
Bravo S
Pacheco M
Nuñez V
Correa J.D
Chico L.

Citación

       
TY - GEN T1 - Two-dimensional Weyl points and nodal lines in pentagonal materials and their optical response Y1 - 2021 UR - http://hdl.handle.net/11407/7611 PB - Royal Society of Chemistry AB - Two-dimensional pentagonal structures based on the Cairo tiling are the basis of a family of layered materials with appealing physical properties. In this work we present a theoretical study of the symmetry-based electronic and optical properties of these pentagonal materials. We provide a complete classification of the space groups that support pentagonal structures for binary and ternary systems. By means of first-principles calculations, the electronic band structures and the local spin textures in momentum space are analyzed for four examples of these materials, namely, PdSeTe, PdSeS, InP5 and GeBi2, all of which are dynamically stable. Our results show that pentagonal structures can be realized in chiral and achiral lattices with Weyl nodes pinned at high-symmetry points and nodal lines along the Brillouin zone boundary; these degeneracies are protected by the combined action of crystalline and time-reversal symmetries. Additionally, we computed the linear and nonlinear optical features of the proposed pentagonal materials and discuss some particular features such as the shift current, which shows an enhancement due to the presence of nodal lines and points, and their possible applications. © The Royal Society of Chemistry. ER - @misc{11407_7611, author = {}, title = {Two-dimensional Weyl points and nodal lines in pentagonal materials and their optical response}, year = {2021}, abstract = {Two-dimensional pentagonal structures based on the Cairo tiling are the basis of a family of layered materials with appealing physical properties. In this work we present a theoretical study of the symmetry-based electronic and optical properties of these pentagonal materials. We provide a complete classification of the space groups that support pentagonal structures for binary and ternary systems. By means of first-principles calculations, the electronic band structures and the local spin textures in momentum space are analyzed for four examples of these materials, namely, PdSeTe, PdSeS, InP5 and GeBi2, all of which are dynamically stable. Our results show that pentagonal structures can be realized in chiral and achiral lattices with Weyl nodes pinned at high-symmetry points and nodal lines along the Brillouin zone boundary; these degeneracies are protected by the combined action of crystalline and time-reversal symmetries. Additionally, we computed the linear and nonlinear optical features of the proposed pentagonal materials and discuss some particular features such as the shift current, which shows an enhancement due to the presence of nodal lines and points, and their possible applications. © The Royal Society of Chemistry.}, url = {http://hdl.handle.net/11407/7611} }RT Generic T1 Two-dimensional Weyl points and nodal lines in pentagonal materials and their optical response YR 2021 LK http://hdl.handle.net/11407/7611 PB Royal Society of Chemistry AB Two-dimensional pentagonal structures based on the Cairo tiling are the basis of a family of layered materials with appealing physical properties. In this work we present a theoretical study of the symmetry-based electronic and optical properties of these pentagonal materials. We provide a complete classification of the space groups that support pentagonal structures for binary and ternary systems. By means of first-principles calculations, the electronic band structures and the local spin textures in momentum space are analyzed for four examples of these materials, namely, PdSeTe, PdSeS, InP5 and GeBi2, all of which are dynamically stable. Our results show that pentagonal structures can be realized in chiral and achiral lattices with Weyl nodes pinned at high-symmetry points and nodal lines along the Brillouin zone boundary; these degeneracies are protected by the combined action of crystalline and time-reversal symmetries. Additionally, we computed the linear and nonlinear optical features of the proposed pentagonal materials and discuss some particular features such as the shift current, which shows an enhancement due to the presence of nodal lines and points, and their possible applications. © The Royal Society of Chemistry. OL Spanish (121)
Gestores bibliográficos
Refworks
Zotero
BibTeX
CiteULike
Metadata
Show full item record
Abstract
Two-dimensional pentagonal structures based on the Cairo tiling are the basis of a family of layered materials with appealing physical properties. In this work we present a theoretical study of the symmetry-based electronic and optical properties of these pentagonal materials. We provide a complete classification of the space groups that support pentagonal structures for binary and ternary systems. By means of first-principles calculations, the electronic band structures and the local spin textures in momentum space are analyzed for four examples of these materials, namely, PdSeTe, PdSeS, InP5 and GeBi2, all of which are dynamically stable. Our results show that pentagonal structures can be realized in chiral and achiral lattices with Weyl nodes pinned at high-symmetry points and nodal lines along the Brillouin zone boundary; these degeneracies are protected by the combined action of crystalline and time-reversal symmetries. Additionally, we computed the linear and nonlinear optical features of the proposed pentagonal materials and discuss some particular features such as the shift current, which shows an enhancement due to the presence of nodal lines and points, and their possible applications. © The Royal Society of Chemistry.
URI
http://hdl.handle.net/11407/7611
Collections
  • Indexados Scopus [1632]
All of RI UdeMCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects
My AccountLoginRegister
Statistics GTMView statistics GTM
OFERTA ACADÉMICA
  • Oferta académica completa
  • Facultad de Derecho
  • Facultad de Comunicación
  • Facultad de Ingenierías
  • Facultad de Ciencias Económicas y Administrativas
  • Facultad de Ciencias Sociales y Humanas
  • Facultad de Ciencias Básicas
  • Facultad de Diseño
SERVICIOS
  • Teatro
  • Educación continuada
  • Centro de Idiomas
  • Consultorio Jurídico
  • Centro de Asesorías y Consultorías
  • Prácticas empresariales
  • Operadora Profesional de Certámenes
INVESTIGACIÓN
  • Centros de investigación
  • Revistas científicas
  • Repositorio institucional
  • Universidad - Empresa - Estado - Sociedad

Universidad de Medellín - Teléfono: +57 (4) 590 4500 Ext. 11422 - Dirección: Carrera 87 N° 30 - 65 Medellín - Colombia - Suramérica
© Copyright 2012 ® Todos los Derechos Reservados
Contacto

 infotegra.com