Unconventional aspects of electronic transport in delafossite oxides.
Sci Technol Adv Mater
; 18(1): 919-938, 2017.
Article
em En
| MEDLINE
| ID: mdl-29383043
ABSTRACT
The electronic transport properties of the delafossite oxides [Formula see text] are usually understood in terms of two well-separated entities, namely the triangular [Formula see text] and ([Formula see text] layers. Here, we review several cases among this extensive family of materials where the transport depends on the interlayer coupling and displays unconventional properties. We review the doped thermoelectrics based on [Formula see text] and [Formula see text], which show a high-temperature recovery of Fermi-liquid transport exponents, as well as the highly anisotropic metals [Formula see text], [Formula see text], and [Formula see text], where the sheer simplicity of the Fermi surface leads to unconventional transport. We present some of the theoretical tools that have been used to investigate these transport properties and review what can and cannot be learned from the extensive set of electronic structure calculations that have been performed.
105 Low-Dimension (1D/2D) materials; 106 Metallic materials; 203 Magnetics / Spintronics / Superconductors; 206 Energy conversion / transport / storage / recovery; 401 1st principle calculations; 50 Energy Materials; Delafossites; Nernst effect; anisotropic materials; electronic structure; magnetism; resistivity; thermopower
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Sci Technol Adv Mater
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
França